Harpenden to St Albans Walk
A Hertfordshire Town and a Hertfordshire City linked by commons, parks, a country estate and a new woodland forest.
Hiking weather forecast
Hertfordshire hourly weather (Visual Crossing)
Sunset: 21:09. Dusk: 21:54. Dark: 22:57. Moon 39% (23:56 to dawn)
Updated: Fri, 18-Jul at 08:39
| 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | |
| Today |
0%
|
0%
|
0%
|
0%
|
0%
|
0%
|
0%
|
0%
|
0%
|
0%
|
0%
|
0%
|
0%
|
0%
|
45%
|
45%
|
| Sat, 19 Jul |
74%
|
74%
|
68%
|
68%
|
68%
|
68%
|
68%
|
68%
|
58%
|
58%
|
58%
|
58%
|
58%
|
58%
|
23%
|
23%
|
| Sun, 20 Jul |
26%
|
26%
|
52%
|
52%
|
52%
|
52%
|
52%
|
52%
|
55%
|
55%
|
55%
|
55%
|
55%
|
55%
|
36%
|
36%
|
| Mon, 21 Jul |
23%
|
23%
|
65%
|
65%
|
65%
|
65%
|
65%
|
65%
|
65%
|
65%
|
65%
|
65%
|
65%
|
65%
|
52%
|
52%
|
| Tue, 22 Jul |
0%
|
0%
|
29%
|
29%
|
29%
|
29%
|
29%
|
29%
|
48%
|
48%
|
48%
|
48%
|
48%
|
48%
|
45%
|
45%
|
| Wed, 23 Jul |
16%
|
16%
|
29%
|
29%
|
29%
|
29%
|
29%
|
29%
|
61%
|
61%
|
61%
|
61%
|
61%
|
61%
|
48%
|
48%
|
| Thu, 24 Jul |
3%
|
3%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
26%
|
26%
|
26%
|
26%
|
26%
|
26%
|
19%
|
19%
|
| Fri, 25 Jul |
3%
|
3%
|
3%
|
3%
|
3%
|
3%
|
3%
|
3%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
| Sat, 26 Jul |
3%
|
3%
|
7%
|
7%
|
7%
|
7%
|
7%
|
7%
|
23%
|
23%
|
23%
|
23%
|
23%
|
23%
|
16%
|
16%
|
| Sun, 27 Jul |
3%
|
3%
|
7%
|
7%
|
7%
|
7%
|
7%
|
7%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
16%
|
16%
|
| Mon, 28 Jul |
7%
|
7%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
16%
|
16%
|
16%
|
16%
|
16%
|
16%
|
16%
|
16%
|
| Tue, 29 Jul |
10%
|
10%
|
13%
|
13%
|
13%
|
13%
|
13%
|
13%
|
7%
|
7%
|
7%
|
7%
|
7%
|
7%
|
10%
|
10%
|
| Wed, 30 Jul |
13%
|
13%
|
19%
|
19%
|
19%
|
19%
|
19%
|
19%
|
32%
|
32%
|
32%
|
32%
|
32%
|
32%
|
23%
|
23%
|
| Thu, 31 Jul |
7%
|
7%
|
23%
|
23%
|
23%
|
23%
|
23%
|
23%
|
23%
|
23%
|
23%
|
23%
|
23%
|
23%
|
19%
|
19%
|
| Fri, 01 Aug |
13%
|
13%
|
13%
|
13%
|
13%
|
13%
|
13%
|
13%
|
16%
|
16%
|
16%
|
16%
|
16%
|
16%
|
13%
|
13%
|
Percentages are the chance of rain.
Weather data by Visual Crossing
Hertfordshire hourly weather (Open Meteo)
Sunset: 21:09. Dusk: 21:54. Dark: 22:57. Moon 39% (23:56 to dawn)
Updated: Fri, 18-Jul at 08:36
| 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | |
| Today |
0%
|
0%
|
0%
|
0%
|
0%
|
0%
|
0%
|
0%
|
0%
|
0%
|
0%
|
0%
|
3%
|
3%
| ||
| Sat, 19 Jul |
88%
|
90%
|
93%
|
90%
|
83%
|
73%
|
63%
|
68%
|
65%
|
55%
|
53%
|
40%
|
28%
|
20%
|
10%
|
5%
|
| Sun, 20 Jul |
54%
|
70%
|
74%
|
72%
|
68%
|
62%
|
53%
|
45%
|
38%
|
32%
|
25%
|
18%
|
11%
|
5%
|
2%
|
0%
|
| Mon, 21 Jul |
42%
|
48%
|
53%
|
58%
|
64%
|
68%
|
72%
|
75%
|
78%
|
80%
|
82%
|
83%
|
82%
|
78%
|
70%
|
59%
|
| Tue, 22 Jul |
14%
|
15%
|
15%
|
16%
|
16%
|
17%
|
18%
|
20%
|
23%
|
27%
|
32%
|
37%
|
40%
|
40%
|
37%
|
32%
|
| Wed, 23 Jul |
14%
|
13%
|
12%
|
11%
|
10%
|
10%
|
10%
|
10%
|
11%
|
12%
|
13%
|
15%
|
17%
|
19%
|
22%
|
23%
|
| Thu, 24 Jul |
24%
|
22%
|
20%
|
18%
|
17%
|
15%
|
14%
|
13%
|
12%
|
12%
|
11%
|
11%
|
10%
|
10%
|
10%
|
9%
|
| Fri, 25 Jul |
6%
|
5%
|
5%
|
4%
|
4%
|
4%
|
3%
|
3%
|
17%
|
21%
|
23%
|
21%
|
17%
|
13%
|
12%
|
11%
|
| Sat, 26 Jul |
10%
|
10%
|
11%
|
12%
|
13%
|
15%
|
17%
|
19%
|
19%
|
18%
|
19%
|
22%
|
26%
|
29%
|
30%
|
29%
|
| Sun, 27 Jul |
4%
|
3%
|
3%
|
4%
|
6%
|
10%
|
14%
|
19%
|
24%
|
29%
|
32%
|
32%
|
31%
|
29%
|
26%
|
23%
|
| Mon, 28 Jul |
11%
|
13%
|
14%
|
14%
|
15%
|
16%
|
17%
|
19%
|
22%
|
26%
|
29%
|
32%
|
34%
|
35%
|
33%
|
29%
|
| Tue, 29 Jul |
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
11%
|
13%
|
17%
|
22%
|
27%
|
32%
|
36%
|
39%
|
39%
|
37%
|
| Wed, 30 Jul |
12%
|
10%
|
9%
|
10%
|
10%
|
11%
|
12%
|
13%
|
15%
|
18%
|
21%
|
23%
|
25%
|
26%
|
25%
|
22%
|
| Thu, 31 Jul |
9%
|
10%
|
11%
|
13%
|
15%
|
17%
|
18%
|
19%
|
19%
|
19%
|
19%
|
18%
|
17%
|
16%
|
14%
|
12%
|
| Fri, 01 Aug |
15%
|
16%
|
16%
|
16%
|
15%
|
14%
|
13%
|
13%
|
14%
|
17%
|
19%
|
21%
|
23%
|
23%
|
21%
|
17%
|
| Sat, 02 Aug |
5%
|
6%
|
6%
|
7%
|
7%
|
8%
|
8%
|
10%
|
13%
|
17%
|
21%
|
24%
|
28%
|
29%
|
28%
|
24%
|
Percentages are the chance of rain.
Weather data by Open-Meteo
Hertfordshire hourly weather (Met Office)
Sunset: 21:09. Dusk: 21:54. Dark: 22:57. Moon 39% (23:56 to dawn)
Updated: Fri, 18-Jul at 08:00
| 06 | 09 | 12 | 15 | 18 | 21 | |
| Today |
1%
|
0%
|
1%
|
6%
|
6%
| |
| Sat, 19 Jul |
87%
|
73%
|
65%
|
65%
|
36%
|
8%
|
| Sun, 20 Jul |
47%
|
50%
|
46%
|
38%
|
32%
|
3%
|
| Mon, 21 Jul |
31%
|
44%
|
64%
|
61%
|
39%
|
4%
|
| Tue, 22 Jul |
9%
|
10%
|
36%
|
57%
|
42%
|
8%
|
| Wed, 23 Jul |
10%
|
34%
|
41%
|
40%
|
38%
|
9%
|
| Thu, 24 Jul |
7%
|
29%
|
34%
|
37%
|
31%
|
6%
|
| Fri, 25 Jul |
4%
|
Percentages are the chance of rain.
Weather data by Met Office
Regional weather (Met Office)
Sunset: 21:09. Dusk: 21:54. Dark: 22:57. Moon 39% (23:56 to dawn)
Updated: Fri, 18-Jul at 08:38
East England
Warm and humid with a risk of thundery showers.
- A bery warm and humid day with sunny spells and isolated showers, these perhaps heavy and thundery during the afternoon, especially across north Norfolk
- Winds generally light away from showers
- Maximum Temperature 30C
Tonight:
- A muggy night with showers gradually dissipating, before areas of heavy, thundery rain move across the region later in the evening and continue into the early hours of Saturday morning
- Minimum Temperature 18C
Saturday:
- Turning slightly cooler and unsettled with widespread, often heavy and thundery rain perhaps lasting much of the day, before clearing into the evening to give another muggy night
- Maximum Temperature 25C
Outlook for Sunday to Tuesday:
- Remaining unsettled, with a mixture of sunny spells and rain or thundery showers throughout the period
- Feeling warm in any sunny spells, with mainly light winds away from showers
UK Day 6-7 and week 2
- Overall a rather more changeable pattern of weather through this period, compared to much of the summer thus far
- Tuesday will likely see a continuation of heavy, perhaps thundery showers, although the focus may be more across the north and east by this stage
- Thereafter, a general westerly regime looks to become established, with occasional weather systems moving in from the Atlantic
- This means further rain or showers and breezy conditions at times, especially in the northwest
- This will be interspersed with some drier, sunnier periods
- Temperatures are expected to average out above normal with some humid conditions possible at times making it feel particularly warm in any sunshine
- This broad pattern is likely to continue through to the end of July
UK Week 3 and 4
- The rather changeable pattern will likely continue through early August with spells of rain or showers mixed in with some drier, brighter days
- Towards mid-August, there are tentative signs that high pressure may become rather more dominant, which could bring more in the way dry, settled weather more widely
- Temperatures will likely continue to be above average overall, with the possibility of very warm or hot spells developing later in the period, especially further south and east
Weather data by Met Office
Hertfordshire Air Quality (Pollen and UV)
Updated: Fri, 18-Jul at 08:36
Key : Low Medium High Very High
| 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | |
| Today | air q UV grass mugwort | air q UV grass mugwort | air q UV grass mugwort | air q UV grass mugwort | air q UV grass mugwort | air q UV grass mugwort | air q UV grass mugwort | air q UV grass mugwort | air q UV grass mugwort | air q UV grass mugwort | air q UV grass mugwort | air q UV grass mugwort | air q UV grass mugwort | air q grass mugwort | air q grass mugwort | air q grass mugwort | ||||||||
| Sat, 19 Jul | air q grass mugwort | air q grass mugwort | air q grass mugwort | air q grass mugwort | air q grass mugwort | air q grass mugwort | air q UV grass mugwort | air q UV grass | air q UV grass | air q UV | air q UV | air q UV | air q UV | air q UV | air q UV | air q UV grass mugwort | air q UV grass mugwort | air q UV grass mugwort | air q UV grass mugwort | air q UV grass mugwort | air q UV grass mugwort | air q grass mugwort | air q grass mugwort | air q grass mugwort |
| Sun, 20 Jul | air q grass mugwort | air q grass mugwort | air q grass mugwort | air q grass mugwort | air q grass mugwort | air q grass mugwort | air q UV grass mugwort | air q UV grass mugwort | air q UV grass mugwort | air q UV grass mugwort | air q UV mugwort | air q UV grass mugwort | air q UV grass mugwort | air q UV grass mugwort | air q UV grass mugwort | air q UV grass mugwort | air q UV grass mugwort | air q UV grass mugwort | air q UV grass mugwort | air q UV grass mugwort | air q UV grass mugwort | air q grass mugwort | air q grass mugwort | air q grass mugwort |
| Mon, 21 Jul | air q grass mugwort | air q grass mugwort | air q | air q | air q | air q | air q UV | air q UV | air q UV | air q UV | air q UV | air q UV | air q UV | air q UV | air q UV | air q UV | air q UV | air q UV | air q UV | air q UV | air q UV | air q | air q | air q |
Pollens
These pollens are shown (in season):
- Grass
- Alder and birch (trees)
- Mugwort and Ragweed (weeds)
When out walking, wraparound glasses, a disposable or washable facemask, and being at the front of the group, all help.
Other forecasts: Met Office, University of Worcester
UV and Air Quality
The UV forecast takes account of cloud cover.
"Air Q", the European Air Quality index, is a mix of dust/particulates, ozone, sulphur and nitrous oxides
Data
Weather data by Open-Meteo and CAMS ENSEMBLE
Hertfordshire Visibility
Updated: Fri, 18-Jul at 08:36
| 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | |
| Today | 10km | 24km | 42km | 55km | 68km | 74km | 74km | 76km | 76km | 76km | 76km | 74km | 71km | 69km | ||
| Sat, 19 Jul | 1km | 1km | 1km | 1km | 7km | 10km | 19km | 25km | 46km | 54km | 31km | 47km | 45km | 46km | 28km | 32km |
| Sun, 20 Jul | 24km | 17km | 10km | 10km | 13km | 28km | 50km | 56km | 71km | 69km | 70km | 70km | 72km | 72km | 68km | 64km |
| Mon, 21 Jul | 8km | 11km | 21km | 30km | 39km | 46km | 52km | 58km | 49km | 39km | 30km | 40km | 50km | 60km | 49km | 38km |
| Tue, 22 Jul | 15km | 15km | 29km | 42km | 55km | 59km | 64km | 69km | 70km | 71km | 72km | 64km | 56km | 47km | 36km | 25km |
Visibility in km. Above 50km is 'good'. Humidity and air pollution make it worse. Theoretical maximum is 300km/200 miles in clean dry polar air.
On the South Downs, at ~ 170m/500ft, the horizon is is ~ 45km/30 miles away. On a mountain at 1,000m/3,000ft, it is ~ 160km/100 miles away. Formula: horizon in km = √ (13 x altitude in m)
Weather data by Open-Meteo
Hertfordshire daylight
| Date | Light | Dawn | Sunrise | Max Ht. | Sunset | Dusk | Dark | Day Length | |
|---|---|---|---|---|---|---|---|---|---|
| Fri, 18-Jul | 03:15 | 04:19 | 05:03 | 13:07 | 21:09 | 21:54 | 22:57 | 17:34 | |
| Sat, 19-Jul | 03:17 | 04:20 | 05:05 | 13:07 | 21:08 | 21:52 | 22:55 | 17:31 | |
| Sun, 20-Jul | 03:19 | 04:22 | 05:06 | 13:07 | 21:07 | 21:51 | 22:53 | 17:28 | |
| Mon, 21-Jul | 03:21 | 04:24 | 05:07 | 13:07 | 21:06 | 21:49 | 22:51 | 17:25 | |
| Tue, 22-Jul | 03:24 | 04:25 | 05:09 | 13:07 | 21:04 | 21:48 | 22:48 | 17:22 | |
| Wed, 23-Jul | 03:26 | 04:27 | 05:10 | 13:07 | 21:03 | 21:46 | 22:46 | 17:19 | |
| Thu, 24-Jul | 03:28 | 04:28 | 05:11 | 13:07 | 21:02 | 21:44 | 22:44 | 17:15 | |
| Fri, 25-Jul | 03:31 | 04:30 | 05:13 | 13:07 | 21:00 | 21:43 | 22:42 | 17:12 | |
| Sat, 26-Jul | 03:33 | 04:32 | 05:14 | 13:07 | 20:59 | 21:41 | 22:39 | 17:09 | |
| Sun, 27-Jul | 03:35 | 04:34 | 05:16 | 13:07 | 20:57 | 21:39 | 22:37 | 17:05 | |
| Mon, 28-Jul | 03:38 | 04:35 | 05:17 | 13:07 | 20:56 | 21:38 | 22:35 | 17:02 | |
| Tue, 29-Jul | 03:40 | 04:37 | 05:19 | 13:07 | 20:54 | 21:36 | 22:32 | 16:58 | |
| Wed, 30-Jul | 03:42 | 04:39 | 05:20 | 13:07 | 20:53 | 21:34 | 22:30 | 16:55 | |
| Thu, 31-Jul | 03:45 | 04:40 | 05:22 | 13:07 | 20:51 | 21:32 | 22:27 | 16:51 | |
| Fri, 01-Aug | 03:47 | 04:42 | 05:23 | 13:07 | 20:49 | 21:30 | 22:25 | 16:47 | |
| Sat, 02-Aug | 03:49 | 04:44 | 05:25 | 13:07 | 20:48 | 21:28 | 22:22 | 16:44 | |
| Sun, 03-Aug | 03:52 | 04:46 | 05:26 | 13:07 | 20:46 | 21:26 | 22:20 | 16:40 | |
| Mon, 04-Aug | 03:54 | 04:48 | 05:28 | 13:07 | 20:44 | 21:24 | 22:17 | 16:36 | |
| Tue, 05-Aug | 03:56 | 04:49 | 05:29 | 13:06 | 20:42 | 21:22 | 22:15 | 16:32 | |
| Wed, 06-Aug | 03:58 | 04:51 | 05:31 | 13:06 | 20:41 | 21:20 | 22:12 | 16:29 | |
| Thu, 07-Aug | 04:01 | 04:53 | 05:33 | 13:06 | 20:39 | 21:18 | 22:10 | 16:25 | |
| Fri, 08-Aug | 04:03 | 04:55 | 05:34 | 13:06 | 20:37 | 21:16 | 22:07 | 16:21 | |
| Sat, 09-Aug | 04:05 | 04:57 | 05:36 | 13:06 | 20:35 | 21:14 | 22:05 | 16:17 | |
| Sun, 10-Aug | 04:08 | 04:58 | 05:37 | 13:06 | 20:33 | 21:12 | 22:02 | 16:13 | |
| Mon, 11-Aug | 04:10 | 05:00 | 05:39 | 13:06 | 20:31 | 21:10 | 22:00 | 16:09 | |
| Tue, 12-Aug | 04:12 | 05:02 | 05:41 | 13:05 | 20:29 | 21:08 | 21:57 | 16:05 | |
| Wed, 13-Aug | 04:14 | 05:04 | 05:42 | 13:05 | 20:27 | 21:05 | 21:54 | 16:01 | |
| Thu, 14-Aug | 04:17 | 05:06 | 05:44 | 13:05 | 20:25 | 21:03 | 21:52 | 15:57 | |
| Fri, 15-Aug | 04:19 | 05:07 | 05:45 | 13:05 | 20:23 | 21:01 | 21:49 | 15:53 | |
| Sat, 16-Aug | 04:21 | 05:09 | 05:47 | 13:05 | 20:21 | 20:59 | 21:47 | 15:49 | |
| Sun, 17-Aug | 04:23 | 05:11 | 05:49 | 13:04 | 20:19 | 20:57 | 21:44 | 15:45 | |
| Mon, 18-Aug | 04:25 | 05:13 | 05:50 | 13:04 | 20:17 | 20:54 | 21:41 | 15:41 | |
| Tue, 19-Aug | 04:28 | 05:15 | 05:52 | 13:04 | 20:15 | 20:52 | 21:39 | 15:37 | |
| Wed, 20-Aug | 04:30 | 05:16 | 05:53 | 13:04 | 20:13 | 20:50 | 21:36 | 15:33 | |
| Thu, 21-Aug | 04:32 | 05:18 | 05:55 | 13:04 | 20:11 | 20:48 | 21:34 | 15:29 | |
| Fri, 22-Aug | 04:34 | 05:20 | 05:57 | 13:03 | 20:09 | 20:45 | 21:31 | 15:25 | |
| Sat, 23-Aug | 04:36 | 05:22 | 05:58 | 13:03 | 20:07 | 20:43 | 21:28 | 15:21 | |
| Sun, 24-Aug | 04:38 | 05:24 | 06:00 | 13:03 | 20:05 | 20:41 | 21:26 | 15:17 | |
| Mon, 25-Aug | 04:40 | 05:25 | 06:01 | 13:02 | 20:02 | 20:38 | 21:23 | 15:13 | |
| Tue, 26-Aug | 04:42 | 05:27 | 06:03 | 13:02 | 20:00 | 20:36 | 21:21 | 15:08 | |
| Wed, 27-Aug | 04:44 | 05:29 | 06:05 | 13:02 | 19:58 | 20:34 | 21:18 | 15:04 | |
| Thu, 28-Aug | 04:46 | 05:31 | 06:06 | 13:02 | 19:56 | 20:31 | 21:15 | 15:00 | |
| Fri, 29-Aug | 04:48 | 05:32 | 06:08 | 13:01 | 19:54 | 20:29 | 21:13 | 14:56 | |
| Sat, 30-Aug | 04:50 | 05:34 | 06:10 | 13:01 | 19:51 | 20:27 | 21:10 | 14:52 | |
| Sun, 31-Aug | 04:52 | 05:36 | 06:11 | 13:01 | 19:49 | 20:24 | 21:07 | 14:48 | |
| Mon, 01-Sep | 04:54 | 05:38 | 06:13 | 13:00 | 19:47 | 20:22 | 21:05 | 14:44 | |
| Tue, 02-Sep | 04:56 | 05:39 | 06:14 | 13:00 | 19:45 | 20:20 | 21:02 | 14:40 | |
| Wed, 03-Sep | 04:58 | 05:41 | 06:16 | 13:00 | 19:42 | 20:17 | 21:00 | 14:36 | |
| Thu, 04-Sep | 05:00 | 05:43 | 06:18 | 12:59 | 19:40 | 20:15 | 20:57 | 14:31 | |
| Fri, 05-Sep | 05:02 | 05:45 | 06:19 | 12:59 | 19:38 | 20:12 | 20:54 | 14:27 | |
| Sat, 06-Sep | 05:04 | 05:46 | 06:21 | 12:59 | 19:36 | 20:10 | 20:52 | 14:23 | |
| Sun, 07-Sep | 05:06 | 05:48 | 06:22 | 12:58 | 19:33 | 20:08 | 20:49 | 14:19 | |
| Mon, 08-Sep | 05:08 | 05:50 | 06:24 | 12:58 | 19:31 | 20:05 | 20:47 | 14:15 | |
| Tue, 09-Sep | 05:10 | 05:51 | 06:26 | 12:58 | 19:29 | 20:03 | 20:44 | 14:11 | |
| Wed, 10-Sep | 05:12 | 05:53 | 06:27 | 12:57 | 19:26 | 20:00 | 20:42 | 14:07 | |
| Thu, 11-Sep | 05:14 | 05:55 | 06:29 | 12:57 | 19:24 | 19:58 | 20:39 | 14:03 | |
| Fri, 12-Sep | 05:15 | 05:56 | 06:31 | 12:57 | 19:22 | 19:56 | 20:37 | 13:59 | |
| Sat, 13-Sep | 05:17 | 05:58 | 06:32 | 12:56 | 19:19 | 19:53 | 20:34 | 13:55 | |
| Sun, 14-Sep | 05:19 | 06:00 | 06:34 | 12:56 | 19:17 | 19:51 | 20:31 | 13:51 | |
| Mon, 15-Sep | 05:21 | 06:01 | 06:35 | 12:56 | 19:15 | 19:49 | 20:29 | 13:47 | |
| Tue, 16-Sep | 05:23 | 06:03 | 06:37 | 12:55 | 19:12 | 19:46 | 20:26 | 13:42 | |
| Wed, 17-Sep | 05:24 | 06:05 | 06:39 | 12:55 | 19:10 | 19:44 | 20:24 | 13:38 | |
| Thu, 18-Sep | 05:26 | 06:06 | 06:40 | 12:55 | 19:08 | 19:41 | 20:21 | 13:34 | |
| Fri, 19-Sep | 05:28 | 06:08 | 06:42 | 12:54 | 19:05 | 19:39 | 20:19 | 13:30 | |
| Sat, 20-Sep | 05:30 | 06:10 | 06:43 | 12:54 | 19:03 | 19:37 | 20:16 | 13:26 | |
| Sun, 21-Sep | 05:32 | 06:11 | 06:45 | 12:53 | 19:01 | 19:34 | 20:14 | 13:22 | |
| Mon, 22-Sep | 05:33 | 06:13 | 06:47 | 12:53 | 18:58 | 19:32 | 20:12 | 13:18 | |
| Tue, 23-Sep | 05:35 | 06:15 | 06:48 | 12:53 | 18:56 | 19:30 | 20:09 | 13:14 | |
| Wed, 24-Sep | 05:37 | 06:16 | 06:50 | 12:52 | 18:54 | 19:27 | 20:07 | 13:10 | |
| Thu, 25-Sep | 05:39 | 06:18 | 06:52 | 12:52 | 18:51 | 19:25 | 20:04 | 13:06 | |
| Fri, 26-Sep | 05:40 | 06:20 | 06:53 | 12:52 | 18:49 | 19:23 | 20:02 | 13:02 | |
| Sat, 27-Sep | 05:42 | 06:21 | 06:55 | 12:51 | 18:47 | 19:20 | 19:59 | 12:58 | |
| Sun, 28-Sep | 05:44 | 06:23 | 06:57 | 12:51 | 18:45 | 19:18 | 19:57 | 12:54 | |
| Mon, 29-Sep | 05:46 | 06:25 | 06:58 | 12:51 | 18:42 | 19:16 | 19:55 | 12:50 | |
| Tue, 30-Sep | 05:47 | 06:26 | 07:00 | 12:50 | 18:40 | 19:13 | 19:52 | 12:46 | |
| Wed, 01-Oct | 05:49 | 06:28 | 07:02 | 12:50 | 18:38 | 19:11 | 19:50 | 12:42 | |
| Thu, 02-Oct | 05:51 | 06:30 | 07:03 | 12:50 | 18:35 | 19:09 | 19:48 | 12:39 | |
| Fri, 03-Oct | 05:52 | 06:31 | 07:05 | 12:49 | 18:33 | 19:06 | 19:45 | 12:35 | |
| Sat, 04-Oct | 05:54 | 06:33 | 07:07 | 12:49 | 18:31 | 19:04 | 19:43 | 12:31 | |
| Sun, 05-Oct | 05:56 | 06:35 | 07:08 | 12:49 | 18:28 | 19:02 | 19:41 | 12:27 | |
| Mon, 06-Oct | 05:57 | 06:36 | 07:10 | 12:49 | 18:26 | 19:00 | 19:39 | 12:23 | |
| Tue, 07-Oct | 05:59 | 06:38 | 07:12 | 12:48 | 18:24 | 18:57 | 19:36 | 12:19 | |
| Wed, 08-Oct | 06:01 | 06:40 | 07:13 | 12:48 | 18:22 | 18:55 | 19:34 | 12:15 | |
| Thu, 09-Oct | 06:02 | 06:41 | 07:15 | 12:48 | 18:19 | 18:53 | 19:32 | 12:11 | |
| Fri, 10-Oct | 06:04 | 06:43 | 07:17 | 12:47 | 18:17 | 18:51 | 19:30 | 12:07 | |
| Sat, 11-Oct | 06:06 | 06:45 | 07:18 | 12:47 | 18:15 | 18:49 | 19:28 | 12:04 | |
| Sun, 12-Oct | 06:07 | 06:46 | 07:20 | 12:47 | 18:13 | 18:47 | 19:25 | 12:00 | |
| Mon, 13-Oct | 06:09 | 06:48 | 07:22 | 12:47 | 18:11 | 18:44 | 19:23 | 11:56 | |
| Tue, 14-Oct | 06:11 | 06:50 | 07:23 | 12:46 | 18:08 | 18:42 | 19:21 | 11:52 | |
| Wed, 15-Oct | 06:12 | 06:51 | 07:25 | 12:46 | 18:06 | 18:40 | 19:19 | 11:49 | |
| Thu, 16-Oct | 06:14 | 06:53 | 07:27 | 12:46 | 18:04 | 18:38 | 19:17 | 11:45 | |
| Fri, 17-Oct | 06:16 | 06:55 | 07:29 | 12:46 | 18:02 | 18:36 | 19:15 | 11:41 | |
| Sat, 18-Oct | 06:17 | 06:56 | 07:30 | 12:46 | 18:00 | 18:34 | 19:13 | 11:37 | |
| Sun, 19-Oct | 06:19 | 06:58 | 07:32 | 12:45 | 17:58 | 18:32 | 19:11 | 11:34 | |
| Mon, 20-Oct | 06:20 | 07:00 | 07:34 | 12:45 | 17:56 | 18:30 | 19:09 | 11:30 | |
| Tue, 21-Oct | 06:22 | 07:01 | 07:36 | 12:45 | 17:54 | 18:28 | 19:07 | 11:26 | |
| Wed, 22-Oct | 06:24 | 07:03 | 07:37 | 12:45 | 17:52 | 18:26 | 19:05 | 11:23 | |
| Thu, 23-Oct | 06:25 | 07:05 | 07:39 | 12:45 | 17:50 | 18:24 | 19:03 | 11:19 | |
| Fri, 24-Oct | 06:27 | 07:06 | 07:41 | 12:45 | 17:48 | 18:22 | 19:01 | 11:15 | |
| Sat, 25-Oct | 06:29 | 07:08 | 07:43 | 12:45 | 17:46 | 18:20 | 19:00 | 11:12 | |
| Sun, 26-Oct | 05:30 | 06:10 | 06:44 | 11:44 | 16:44 | 17:18 | 17:58 | 11:08 | |
| Mon, 27-Oct | 05:32 | 06:11 | 06:46 | 11:44 | 16:42 | 17:17 | 17:56 | 11:05 | |
| Tue, 28-Oct | 05:33 | 06:13 | 06:48 | 11:44 | 16:40 | 17:15 | 17:54 | 11:01 | |
| Wed, 29-Oct | 05:35 | 06:15 | 06:50 | 11:44 | 16:38 | 17:13 | 17:52 | 10:58 | |
| Thu, 30-Oct | 05:37 | 06:16 | 06:52 | 11:44 | 16:36 | 17:11 | 17:51 | 10:54 | |
| Fri, 31-Oct | 05:38 | 06:18 | 06:53 | 11:44 | 16:34 | 17:09 | 17:49 | 10:51 | |
| Sat, 01-Nov | 05:40 | 06:20 | 06:55 | 11:44 | 16:32 | 17:08 | 17:47 | 10:48 | |
| Sun, 02-Nov | 05:41 | 06:21 | 06:57 | 11:44 | 16:30 | 17:06 | 17:46 | 10:44 | |
| Mon, 03-Nov | 05:43 | 06:23 | 06:59 | 11:44 | 16:29 | 17:04 | 17:44 | 10:41 | |
| Tue, 04-Nov | 05:45 | 06:25 | 07:00 | 11:44 | 16:27 | 17:03 | 17:43 | 10:38 | |
| Wed, 05-Nov | 05:46 | 06:26 | 07:02 | 11:44 | 16:25 | 17:01 | 17:41 | 10:34 | |
| Thu, 06-Nov | 05:48 | 06:28 | 07:04 | 11:44 | 16:23 | 17:00 | 17:40 | 10:31 | |
| Fri, 07-Nov | 05:49 | 06:30 | 07:06 | 11:44 | 16:22 | 16:58 | 17:38 | 10:28 | |
| Sat, 08-Nov | 05:51 | 06:31 | 07:08 | 11:44 | 16:20 | 16:56 | 17:37 | 10:25 | |
| Sun, 09-Nov | 05:52 | 06:33 | 07:09 | 11:44 | 16:19 | 16:55 | 17:35 | 10:22 | |
| Mon, 10-Nov | 05:54 | 06:35 | 07:11 | 11:44 | 16:17 | 16:54 | 17:34 | 10:19 | |
| Tue, 11-Nov | 05:56 | 06:36 | 07:13 | 11:45 | 16:15 | 16:52 | 17:33 | 10:16 | |
| Wed, 12-Nov | 05:57 | 06:38 | 07:15 | 11:45 | 16:14 | 16:51 | 17:32 | 10:13 | |
| Thu, 13-Nov | 05:59 | 06:39 | 07:16 | 11:45 | 16:12 | 16:49 | 17:30 | 10:10 | |
| Fri, 14-Nov | 06:00 | 06:41 | 07:18 | 11:45 | 16:11 | 16:48 | 17:29 | 10:07 | |
| Sat, 15-Nov | 06:02 | 06:43 | 07:20 | 11:45 | 16:10 | 16:47 | 17:28 | 10:04 | |
| Sun, 16-Nov | 06:03 | 06:44 | 07:22 | 11:45 | 16:08 | 16:46 | 17:27 | 10:01 | |
| Mon, 17-Nov | 06:05 | 06:46 | 07:23 | 11:45 | 16:07 | 16:45 | 17:26 | 09:58 | |
| Tue, 18-Nov | 06:06 | 06:47 | 07:25 | 11:46 | 16:06 | 16:43 | 17:25 | 09:56 | |
| Wed, 19-Nov | 06:07 | 06:49 | 07:27 | 11:46 | 16:05 | 16:42 | 17:24 | 09:53 | |
| Thu, 20-Nov | 06:09 | 06:50 | 07:28 | 11:46 | 16:03 | 16:41 | 17:23 | 09:50 | |
| Fri, 21-Nov | 06:10 | 06:52 | 07:30 | 11:46 | 16:02 | 16:40 | 17:22 | 09:48 | |
| Sat, 22-Nov | 06:12 | 06:53 | 07:32 | 11:47 | 16:01 | 16:39 | 17:21 | 09:45 | |
| Sun, 23-Nov | 06:13 | 06:55 | 07:33 | 11:47 | 16:00 | 16:38 | 17:20 | 09:43 | |
| Mon, 24-Nov | 06:14 | 06:56 | 07:35 | 11:47 | 15:59 | 16:38 | 17:20 | 09:41 | |
| Tue, 25-Nov | 06:16 | 06:58 | 07:37 | 11:48 | 15:58 | 16:37 | 17:19 | 09:38 | |
| Wed, 26-Nov | 06:17 | 06:59 | 07:38 | 11:48 | 15:57 | 16:36 | 17:18 | 09:36 | |
| Thu, 27-Nov | 06:18 | 07:01 | 07:40 | 11:48 | 15:56 | 16:35 | 17:17 | 09:34 | |
| Fri, 28-Nov | 06:20 | 07:02 | 07:41 | 11:48 | 15:55 | 16:35 | 17:17 | 09:32 | |
| Sat, 29-Nov | 06:21 | 07:03 | 07:43 | 11:49 | 15:55 | 16:34 | 17:16 | 09:30 | |
| Sun, 30-Nov | 06:22 | 07:05 | 07:44 | 11:49 | 15:54 | 16:33 | 17:16 | 09:28 | |
| Mon, 01-Dec | 06:23 | 07:06 | 07:45 | 11:50 | 15:53 | 16:33 | 17:15 | 09:26 | |
| Tue, 02-Dec | 06:25 | 07:07 | 07:47 | 11:50 | 15:53 | 16:32 | 17:15 | 09:25 | |
| Wed, 03-Dec | 06:26 | 07:09 | 07:48 | 11:50 | 15:52 | 16:32 | 17:15 | 09:23 | |
| Thu, 04-Dec | 06:27 | 07:10 | 07:49 | 11:51 | 15:52 | 16:31 | 17:14 | 09:21 | |
| Fri, 05-Dec | 06:28 | 07:11 | 07:51 | 11:51 | 15:51 | 16:31 | 17:14 | 09:20 | |
| Sat, 06-Dec | 06:29 | 07:12 | 07:52 | 11:52 | 15:51 | 16:31 | 17:14 | 09:18 | |
| Sun, 07-Dec | 06:30 | 07:13 | 07:53 | 11:52 | 15:51 | 16:31 | 17:14 | 09:17 | |
| Mon, 08-Dec | 06:31 | 07:14 | 07:54 | 11:52 | 15:50 | 16:30 | 17:14 | 09:16 | |
| Tue, 09-Dec | 06:32 | 07:15 | 07:56 | 11:53 | 15:50 | 16:30 | 17:13 | 09:14 | |
| Wed, 10-Dec | 06:33 | 07:16 | 07:57 | 11:53 | 15:50 | 16:30 | 17:13 | 09:13 | |
| Thu, 11-Dec | 06:34 | 07:17 | 07:58 | 11:54 | 15:50 | 16:30 | 17:13 | 09:12 | |
| Fri, 12-Dec | 06:35 | 07:18 | 07:59 | 11:54 | 15:50 | 16:30 | 17:14 | 09:11 | |
| Sat, 13-Dec | 06:36 | 07:19 | 08:00 | 11:55 | 15:50 | 16:30 | 17:14 | 09:11 | |
| Sun, 14-Dec | 06:37 | 07:20 | 08:00 | 11:55 | 15:50 | 16:30 | 17:14 | 09:10 | |
| Mon, 15-Dec | 06:37 | 07:21 | 08:01 | 11:56 | 15:50 | 16:31 | 17:14 | 09:09 | |
| Tue, 16-Dec | 06:38 | 07:22 | 08:02 | 11:56 | 15:50 | 16:31 | 17:14 | 09:09 | |
| Wed, 17-Dec | 06:39 | 07:22 | 08:03 | 11:57 | 15:50 | 16:31 | 17:15 | 09:08 | |
| Thu, 18-Dec | 06:39 | 07:23 | 08:04 | 11:57 | 15:51 | 16:31 | 17:15 | 09:08 | |
| Fri, 19-Dec | 06:40 | 07:24 | 08:04 | 11:58 | 15:51 | 16:32 | 17:15 | 09:08 | |
| Sat, 20-Dec | 06:41 | 07:24 | 08:05 | 11:58 | 15:51 | 16:32 | 17:16 | 09:08 | |
| Sun, 21-Dec | 06:41 | 07:25 | 08:05 | 11:59 | 15:52 | 16:33 | 17:16 | 09:08 | |
| Mon, 22-Dec | 06:42 | 07:25 | 08:06 | 11:59 | 15:52 | 16:33 | 17:17 | 09:08 | |
| Tue, 23-Dec | 06:42 | 07:26 | 08:06 | 12:00 | 15:53 | 16:34 | 17:17 | 09:08 | |
| Wed, 24-Dec | 06:42 | 07:26 | 08:07 | 12:00 | 15:54 | 16:34 | 17:18 | 09:08 | |
| Thu, 25-Dec | 06:43 | 07:26 | 08:07 | 12:01 | 15:54 | 16:35 | 17:19 | 09:08 | |
| Fri, 26-Dec | 06:43 | 07:27 | 08:07 | 12:01 | 15:55 | 16:36 | 17:19 | 09:09 | |
| Sat, 27-Dec | 06:43 | 07:27 | 08:07 | 12:02 | 15:56 | 16:37 | 17:20 | 09:09 | |
| Sun, 28-Dec | 06:44 | 07:27 | 08:08 | 12:02 | 15:57 | 16:37 | 17:21 | 09:10 | |
| Mon, 29-Dec | 06:44 | 07:27 | 08:08 | 12:03 | 15:58 | 16:38 | 17:22 | 09:10 | |
| Tue, 30-Dec | 06:44 | 07:27 | 08:08 | 12:03 | 15:59 | 16:39 | 17:22 | 09:11 | |
| Wed, 31-Dec | 06:44 | 07:27 | 08:08 | 12:04 | 16:00 | 16:40 | 17:23 | 09:12 | |
| Thu, 01-Jan | 06:44 | 07:27 | 08:08 | 12:04 | 16:01 | 16:41 | 17:24 | 09:13 | |
| Fri, 02-Jan | 06:44 | 07:27 | 08:07 | 12:04 | 16:02 | 16:42 | 17:25 | 09:14 | |
| Sat, 03-Jan | 06:44 | 07:27 | 08:07 | 12:05 | 16:03 | 16:43 | 17:26 | 09:15 | |
| Sun, 04-Jan | 06:44 | 07:27 | 08:07 | 12:05 | 16:04 | 16:44 | 17:27 | 09:17 | |
| Mon, 05-Jan | 06:44 | 07:27 | 08:07 | 12:06 | 16:05 | 16:45 | 17:28 | 09:18 | |
| Tue, 06-Jan | 06:44 | 07:26 | 08:06 | 12:06 | 16:07 | 16:46 | 17:29 | 09:19 | |
| Wed, 07-Jan | 06:43 | 07:26 | 08:06 | 12:07 | 16:08 | 16:48 | 17:30 | 09:21 | |
| Thu, 08-Jan | 06:43 | 07:26 | 08:06 | 12:07 | 16:09 | 16:49 | 17:32 | 09:23 | |
| Fri, 09-Jan | 06:43 | 07:25 | 08:05 | 12:08 | 16:11 | 16:50 | 17:33 | 09:24 | |
| Sat, 10-Jan | 06:42 | 07:25 | 08:04 | 12:08 | 16:12 | 16:51 | 17:34 | 09:26 | |
| Sun, 11-Jan | 06:42 | 07:24 | 08:04 | 12:08 | 16:13 | 16:53 | 17:35 | 09:28 | |
| Mon, 12-Jan | 06:41 | 07:24 | 08:03 | 12:09 | 16:15 | 16:54 | 17:37 | 09:30 | |
| Tue, 13-Jan | 06:41 | 07:23 | 08:02 | 12:09 | 16:16 | 16:55 | 17:38 | 09:32 | |
Notes
- Max Height (solar noon) is when the sun is highest in the sky.
- Day length is dawn to dusk as there is enough light for walking for at least 30 minutes before sunrise and after sunset, even on an overcast day.
- At 'Light' (nautical dawn) the horizon becomes visible. At 'Dawn' (civil dawn) there is enough light to read, and drivers can switch their lights off. Finally the sun rises.
- After sunset, there is still enough light to read until 'Dusk' (civil dusk) or lighting up time for drivers. The horizon is still visible until 'Dark' (nautical dusk).
- Times will vary if there is a hill on the horizon.
Hertfordshire moonlight
Moonlight chart for walking at night.
| Night of | Sunset | Dusk | Moon Visible | Dawn | Sunrise | Phase | % Full | Max. Ht. | Night Walk | ||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Fri, 18-Jul | 21:09 | 21:54 | 23:56 | dawn | 04:20 | 05:05 | 39 % | 07:50 | |||
| Sat, 19-Jul | 21:08 | 21:52 | 00:17 | dawn | 04:22 | 05:06 | 29 % | 08:47 | |||
| Sun, 20-Jul | 21:07 | 21:51 | 00:49 | dawn | 04:24 | 05:07 | 19 % | 09:48 | |||
| Mon, 21-Jul | 21:06 | 21:49 | 01:36 | dawn | 04:25 | 05:09 | 11 % | 10:52 | |||
| Tue, 22-Jul | 21:04 | 21:48 | 02:43 | dawn | 04:27 | 05:10 | 5 % | 11:55 | |||
| Wed, 23-Jul | 21:03 | 21:46 | 04:28 | 05:11 | 1 % | ||||||
| Thu, 24-Jul | 21:02 | 21:44 | 04:30 | 05:13 | 0 % | 12:54 | |||||
| Fri, 25-Jul | 21:00 | 21:43 | dusk | 21:45 | 04:32 | 05:14 | 2 % | 13:49 | |||
| Sat, 26-Jul | 20:59 | 21:41 | dusk | 22:00 | 04:34 | 05:16 | 5 % | 14:38 | |||
| Sun, 27-Jul | 20:57 | 21:39 | dusk | 22:12 | 04:35 | 05:17 | 11 % | 15:24 | |||
| Mon, 28-Jul | 20:56 | 21:38 | dusk | 22:22 | 04:37 | 05:19 | 18 % | 16:06 | |||
| Tue, 29-Jul | 20:54 | 21:36 | dusk | 22:31 | 04:39 | 05:20 | 26 % | 16:47 | |||
| Wed, 30-Jul | 20:53 | 21:34 | dusk | 22:41 | 04:40 | 05:22 | 35 % | 17:27 | |||
| Thu, 31-Jul | 20:51 | 21:32 | dusk | 22:53 | 04:42 | 05:23 | 45 % | 18:08 | |||
| Fri, 01-Aug | 20:49 | 21:30 | dusk | 23:07 | 04:44 | 05:25 | 54 % | 18:51 | |||
| Sat, 02-Aug | 20:48 | 21:28 | dusk | 23:26 | 04:46 | 05:26 | 64 % | 19:37 | |||
| Sun, 03-Aug | 20:46 | 21:26 | dusk | 23:52 | 04:48 | 05:28 | 72 % | 20:26 | |||
| Mon, 04-Aug | 20:44 | 21:24 | dusk | 00:30 | 04:49 | 05:29 | 81 % | 21:17 | after dusk | ||
| Tue, 05-Aug | 20:42 | 21:22 | dusk | 01:24 | 04:51 | 05:31 | 88 % | 22:11 | after dusk | ||
| Wed, 06-Aug | 20:41 | 21:20 | dusk | 02:32 | 04:53 | 05:33 | 94 % | 23:06 | after dusk | ||
| Thu, 07-Aug | 20:39 | 21:18 | dusk | 03:52 | 04:55 | 05:34 | 98 % | 00:01 | after dusk | ||
| Fri, 08-Aug | 20:37 | 21:16 | dusk | dawn | 04:57 | 05:36 | 100 % | 00:53 | all night | ||
| Sat, 09-Aug | 20:35 | 21:14 | dusk | dawn | 04:58 | 05:37 | 99 % | 01:43 | all night | ||
| Sun, 10-Aug | 20:33 | 21:12 | dusk | dawn | 05:00 | 05:39 | 97 % | 02:31 | all night | ||
| Mon, 11-Aug | 20:31 | 21:10 | 21:24 | dawn | 05:02 | 05:41 | 92 % | 03:19 | before dawn | ||
| Tue, 12-Aug | 20:29 | 21:08 | 21:35 | dawn | 05:04 | 05:42 | 84 % | 04:06 | before dawn | ||
| Wed, 13-Aug | 20:27 | 21:05 | 21:47 | dawn | 05:06 | 05:44 | 75 % | 04:55 | before dawn | ||
| Thu, 14-Aug | 20:25 | 21:03 | 22:02 | dawn | 05:07 | 05:45 | 64 % | 05:47 | |||
| Fri, 15-Aug | 20:23 | 21:01 | 22:22 | dawn | 05:09 | 05:47 | 53 % | 06:42 | |||
| Sat, 16-Aug | 20:21 | 20:59 | 22:49 | dawn | 05:11 | 05:49 | 42 % | 07:41 | |||
| Sun, 17-Aug | 20:19 | 20:57 | 23:30 | dawn | 05:13 | 05:50 | 31 % | 08:43 | |||
| Mon, 18-Aug | 20:17 | 20:54 | 00:28 | dawn | 05:15 | 05:52 | 21 % | 09:44 | |||
| Tue, 19-Aug | 20:15 | 20:52 | 01:44 | dawn | 05:16 | 05:53 | 12 % | 10:44 | |||
| Wed, 20-Aug | 20:13 | 20:50 | 03:08 | dawn | 05:18 | 05:55 | 6 % | 11:39 | |||
| Thu, 21-Aug | 20:11 | 20:48 | 05:20 | 05:57 | 2 % | ||||||
| Fri, 22-Aug | 20:09 | 20:45 | 05:22 | 05:58 | 0 % | 12:30 | |||||
| Sat, 23-Aug | 20:07 | 20:43 | 05:24 | 06:00 | 1 % | 13:17 | |||||
| Sun, 24-Aug | 20:05 | 20:41 | 05:25 | 06:01 | 3 % | 14:00 | |||||
| Mon, 25-Aug | 20:02 | 20:38 | dusk | 20:39 | 05:27 | 06:03 | 7 % | 14:42 | |||
| Tue, 26-Aug | 20:00 | 20:36 | dusk | 20:49 | 05:29 | 06:05 | 13 % | 15:22 | |||
| Wed, 27-Aug | 19:58 | 20:34 | dusk | 20:59 | 05:31 | 06:06 | 21 % | 16:03 | |||
| Thu, 28-Aug | 19:56 | 20:31 | dusk | 21:12 | 05:32 | 06:08 | 29 % | 16:46 | |||
| Fri, 29-Aug | 19:54 | 20:29 | dusk | 21:29 | 05:34 | 06:10 | 38 % | 17:30 | |||
| Sat, 30-Aug | 19:51 | 20:27 | dusk | 21:51 | 05:36 | 06:11 | 47 % | 18:17 | |||
| Sun, 31-Aug | 19:49 | 20:24 | dusk | 22:24 | 05:38 | 06:13 | 57 % | 19:07 | |||
| Mon, 01-Sep | 19:47 | 20:22 | dusk | 23:10 | 05:39 | 06:14 | 66 % | 20:00 | |||
| Tue, 02-Sep | 19:45 | 20:20 | dusk | 00:11 | 05:41 | 06:16 | 75 % | 20:54 | after dusk | ||
| Wed, 03-Sep | 19:42 | 20:17 | dusk | 01:26 | 05:43 | 06:18 | 83 % | 21:48 | after dusk | ||
| Thu, 04-Sep | 19:40 | 20:15 | dusk | 02:49 | 05:45 | 06:19 | 91 % | 22:41 | after dusk | ||
| Fri, 05-Sep | 19:38 | 20:12 | dusk | 04:15 | 05:46 | 06:21 | 96 % | 23:32 | after dusk | ||
| Sat, 06-Sep | 19:36 | 20:10 | dusk | 05:41 | 05:48 | 06:22 | 99 % | 00:22 | after dusk | ||
| Sun, 07-Sep | 19:33 | 20:08 | dusk | dawn | 05:50 | 06:24 | 100 % | 01:10 | all night | ||
| Mon, 08-Sep | 19:31 | 20:05 | dusk | dawn | 05:51 | 06:26 | 98 % | 01:59 | all night | ||
| Tue, 09-Sep | 19:29 | 20:03 | dusk | dawn | 05:53 | 06:27 | 93 % | 02:49 | all night | ||
| Wed, 10-Sep | 19:26 | 20:00 | 20:09 | dawn | 05:55 | 06:29 | 86 % | 03:41 | before dawn | ||
| Thu, 11-Sep | 19:24 | 19:58 | 20:27 | dawn | 05:56 | 06:31 | 77 % | 04:36 | before dawn | ||
| Fri, 12-Sep | 19:22 | 19:56 | 20:52 | dawn | 05:58 | 06:32 | 67 % | 05:35 | |||
| Sat, 13-Sep | 19:19 | 19:53 | 21:28 | dawn | 06:00 | 06:34 | 56 % | 06:37 | |||
| Sun, 14-Sep | 19:17 | 19:51 | 22:21 | dawn | 06:01 | 06:35 | 44 % | 07:39 | |||
| Mon, 15-Sep | 19:15 | 19:49 | 23:31 | dawn | 06:03 | 06:37 | 33 % | 08:38 | |||
| Tue, 16-Sep | 19:12 | 19:46 | 00:52 | dawn | 06:05 | 06:39 | 24 % | 09:34 | |||
| Wed, 17-Sep | 19:10 | 19:44 | 02:16 | dawn | 06:06 | 06:40 | 15 % | 10:26 | |||
| Thu, 18-Sep | 19:08 | 19:41 | 03:38 | dawn | 06:08 | 06:42 | 8 % | 11:13 | |||
| Fri, 19-Sep | 19:05 | 19:39 | 04:57 | dawn | 06:10 | 06:43 | 4 % | 11:56 | |||
| Sat, 20-Sep | 19:03 | 19:37 | 06:11 | 06:45 | 1 % | ||||||
| Sun, 21-Sep | 19:01 | 19:34 | 06:13 | 06:47 | 0 % | 12:38 | |||||
| Mon, 22-Sep | 18:58 | 19:32 | 06:15 | 06:48 | 1 % | 13:19 | |||||
| Tue, 23-Sep | 18:56 | 19:30 | 06:16 | 06:50 | 4 % | 14:00 | |||||
| Wed, 24-Sep | 18:54 | 19:27 | 06:18 | 06:52 | 9 % | 14:41 | |||||
| Thu, 25-Sep | 18:51 | 19:25 | dusk | 19:34 | 06:20 | 06:53 | 15 % | 15:25 | |||
| Fri, 26-Sep | 18:49 | 19:23 | dusk | 19:54 | 06:21 | 06:55 | 23 % | 16:11 | |||
| Sat, 27-Sep | 18:47 | 19:20 | dusk | 20:22 | 06:23 | 06:57 | 31 % | 17:00 | |||
| Sun, 28-Sep | 18:45 | 19:18 | dusk | 21:02 | 06:25 | 06:58 | 40 % | 17:51 | |||
| Mon, 29-Sep | 18:42 | 19:16 | dusk | 21:56 | 06:26 | 07:00 | 50 % | 18:43 | |||
| Tue, 30-Sep | 18:40 | 19:13 | dusk | 23:04 | 06:28 | 07:02 | 60 % | 19:36 | |||
| Wed, 01-Oct | 18:38 | 19:11 | dusk | 00:22 | 06:30 | 07:03 | 69 % | 20:29 | |||
| Thu, 02-Oct | 18:35 | 19:09 | dusk | 01:45 | 06:31 | 07:05 | 79 % | 21:20 | after dusk | ||
| Fri, 03-Oct | 18:33 | 19:06 | dusk | 03:10 | 06:33 | 07:07 | 87 % | 22:09 | after dusk | ||
| Sat, 04-Oct | 18:31 | 19:04 | dusk | 04:36 | 06:35 | 07:08 | 93 % | 22:58 | after dusk | ||
| Sun, 05-Oct | 18:28 | 19:02 | dusk | 06:03 | 06:36 | 07:10 | 98 % | 23:46 | after dusk | ||
| Mon, 06-Oct | 18:26 | 19:00 | dusk | dawn | 06:38 | 07:12 | 100 % | 00:36 | all night | ||
| Tue, 07-Oct | 18:24 | 18:57 | dusk | dawn | 06:40 | 07:13 | 99 % | 01:28 | all night | ||
| Wed, 08-Oct | 18:22 | 18:55 | dusk | dawn | 06:41 | 07:15 | 95 % | 02:24 | all night | ||
| Thu, 09-Oct | 18:19 | 18:53 | 18:53 | dawn | 06:43 | 07:17 | 89 % | 03:24 | before dawn | ||
| Fri, 10-Oct | 18:17 | 18:51 | 19:26 | dawn | 06:45 | 07:18 | 80 % | 04:27 | before dawn | ||
| Sat, 11-Oct | 18:15 | 18:49 | 20:14 | dawn | 06:46 | 07:20 | 70 % | 05:31 | |||
| Sun, 12-Oct | 18:13 | 18:47 | 21:21 | dawn | 06:48 | 07:22 | 59 % | 06:33 | |||
| Mon, 13-Oct | 18:11 | 18:44 | 22:40 | dawn | 06:50 | 07:23 | 48 % | 07:30 | |||
| Tue, 14-Oct | 18:08 | 18:42 | 00:04 | dawn | 06:51 | 07:25 | 37 % | 08:23 | |||
| Wed, 15-Oct | 18:06 | 18:40 | 01:27 | dawn | 06:53 | 07:27 | 27 % | 09:11 | |||
| Thu, 16-Oct | 18:04 | 18:38 | 02:45 | dawn | 06:55 | 07:29 | 19 % | 09:55 | |||
| Fri, 17-Oct | 18:02 | 18:36 | 04:01 | dawn | 06:56 | 07:30 | 12 % | 10:37 | |||
| Sat, 18-Oct | 18:00 | 18:34 | 05:14 | dawn | 06:58 | 07:32 | 6 % | 11:17 | |||
| Sun, 19-Oct | 17:58 | 18:32 | 06:26 | dawn | 07:00 | 07:34 | 2 % | 11:58 | |||
| Mon, 20-Oct | 17:56 | 18:30 | 07:01 | 07:36 | 0 % | ||||||
| Tue, 21-Oct | 17:54 | 18:28 | 07:03 | 07:37 | 0 % | 12:39 | |||||
| Wed, 22-Oct | 17:52 | 18:26 | 07:05 | 07:39 | 2 % | 13:22 | |||||
| Thu, 23-Oct | 17:50 | 18:24 | 07:06 | 07:41 | 5 % | 14:07 | |||||
| Fri, 24-Oct | 17:48 | 18:22 | dusk | 18:24 | 07:08 | 07:43 | 10 % | 14:55 | |||
| Sat, 25-Oct | 17:46 | 18:20 | dusk | 19:00 | 06:10 | 06:44 | 17 % | 15:45 | |||
| Sun, 26-Oct | 16:44 | 17:18 | dusk | 18:48 | 06:11 | 06:46 | 25 % | 15:36 | |||
| Mon, 27-Oct | 16:42 | 17:17 | dusk | 19:50 | 06:13 | 06:48 | 34 % | 16:29 | |||
| Tue, 28-Oct | 16:40 | 17:15 | dusk | 21:03 | 06:15 | 06:50 | 43 % | 17:20 | |||
| Wed, 29-Oct | 16:38 | 17:13 | dusk | 22:22 | 06:16 | 06:52 | 53 % | 18:10 | |||
| Thu, 30-Oct | 16:36 | 17:11 | dusk | 23:43 | 06:18 | 06:53 | 64 % | 18:59 | |||
| Fri, 31-Oct | 16:34 | 17:09 | dusk | 01:06 | 06:20 | 06:55 | 74 % | 19:46 | |||
| Sat, 01-Nov | 16:32 | 17:08 | dusk | 02:30 | 06:21 | 06:57 | 83 % | 20:33 | after dusk | ||
| Sun, 02-Nov | 16:30 | 17:06 | dusk | 03:57 | 06:23 | 06:59 | 91 % | 21:21 | after dusk | ||
| Mon, 03-Nov | 16:29 | 17:04 | dusk | 05:28 | 06:25 | 07:00 | 96 % | 22:12 | after dusk | ||
| Tue, 04-Nov | 16:27 | 17:03 | dusk | dawn | 06:26 | 07:02 | 99 % | 23:06 | all night | ||
| Wed, 05-Nov | 16:25 | 17:01 | dusk | dawn | 06:28 | 07:04 | 100 % | 00:05 | all night | ||
| Thu, 06-Nov | 16:23 | 17:00 | dusk | dawn | 06:30 | 07:06 | 97 % | 01:08 | all night | ||
| Fri, 07-Nov | 16:22 | 16:58 | 17:03 | dawn | 06:31 | 07:08 | 91 % | 02:14 | before dawn | ||
| Sat, 08-Nov | 16:20 | 16:56 | 18:04 | dawn | 06:33 | 07:09 | 83 % | 03:20 | before dawn | ||
| Sun, 09-Nov | 16:19 | 16:55 | 19:22 | dawn | 06:35 | 07:11 | 74 % | 04:22 | |||
| Mon, 10-Nov | 16:17 | 16:54 | 20:48 | dawn | 06:36 | 07:13 | 63 % | 05:18 | |||
| Tue, 11-Nov | 16:15 | 16:52 | 22:13 | dawn | 06:38 | 07:15 | 53 % | 06:08 | |||
| Wed, 12-Nov | 16:14 | 16:51 | 23:34 | dawn | 06:39 | 07:16 | 42 % | 06:54 | |||
| Thu, 13-Nov | 16:12 | 16:49 | 00:51 | dawn | 06:41 | 07:18 | 32 % | 07:37 | |||
| Fri, 14-Nov | 16:11 | 16:48 | 02:04 | dawn | 06:43 | 07:20 | 23 % | 08:17 | |||
| Sat, 15-Nov | 16:10 | 16:47 | 03:16 | dawn | 06:44 | 07:22 | 16 % | 08:57 | |||
| Sun, 16-Nov | 16:08 | 16:46 | 04:28 | dawn | 06:46 | 07:23 | 9 % | 09:38 | |||
| Mon, 17-Nov | 16:07 | 16:45 | 05:40 | dawn | 06:47 | 07:25 | 5 % | 10:20 | |||
| Tue, 18-Nov | 16:06 | 16:43 | 06:49 | 07:27 | 2 % | 11:04 | |||||
| Wed, 19-Nov | 16:05 | 16:42 | 06:50 | 07:28 | 0 % | 11:51 | |||||
| Thu, 20-Nov | 16:03 | 16:41 | 06:52 | 07:30 | 1 % | ||||||
| Fri, 21-Nov | 16:02 | 16:40 | 06:53 | 07:32 | 3 % | 12:41 | |||||
| Sat, 22-Nov | 16:01 | 16:39 | dusk | 16:45 | 06:55 | 07:33 | 7 % | 13:32 | |||
| Sun, 23-Nov | 16:00 | 16:38 | dusk | 17:43 | 06:56 | 07:35 | 12 % | 14:24 | |||
| Mon, 24-Nov | 15:59 | 16:38 | dusk | 18:52 | 06:58 | 07:37 | 19 % | 15:16 | |||
| Tue, 25-Nov | 15:58 | 16:37 | dusk | 20:08 | 06:59 | 07:38 | 28 % | 16:06 | |||
| Wed, 26-Nov | 15:57 | 16:36 | dusk | 21:27 | 07:01 | 07:40 | 37 % | 16:53 | |||
| Thu, 27-Nov | 15:56 | 16:35 | dusk | 22:46 | 07:02 | 07:41 | 47 % | 17:40 | |||
| Fri, 28-Nov | 15:55 | 16:35 | dusk | 00:06 | 07:03 | 07:43 | 58 % | 18:25 | |||
| Sat, 29-Nov | 15:55 | 16:34 | dusk | 01:28 | 07:05 | 07:44 | 68 % | 19:11 | |||
| Sun, 30-Nov | 15:54 | 16:33 | dusk | 02:54 | 07:06 | 07:45 | 78 % | 19:58 | after dusk | ||
| Mon, 01-Dec | 15:53 | 16:33 | dusk | 04:24 | 07:07 | 07:47 | 87 % | 20:48 | after dusk | ||
| Tue, 02-Dec | 15:53 | 16:32 | dusk | 05:59 | 07:09 | 07:48 | 94 % | 21:43 | after dusk | ||
| Wed, 03-Dec | 15:52 | 16:32 | dusk | dawn | 07:10 | 07:49 | 98 % | 22:44 | all night | ||
| Thu, 04-Dec | 15:52 | 16:31 | dusk | dawn | 07:11 | 07:51 | 100 % | 23:50 | all night | ||
| Fri, 05-Dec | 15:51 | 16:31 | dusk | dawn | 07:12 | 07:52 | 98 % | 00:57 | all night | ||
| Sat, 06-Dec | 15:51 | 16:31 | 16:54 | dawn | 07:13 | 07:53 | 94 % | 02:03 | before dawn | ||
| Sun, 07-Dec | 15:51 | 16:31 | 18:21 | dawn | 07:14 | 07:54 | 87 % | 03:05 | before dawn | ||
| Mon, 08-Dec | 15:50 | 16:30 | 19:50 | dawn | 07:15 | 07:56 | 79 % | 03:59 | before dawn | ||
| Tue, 09-Dec | 15:50 | 16:30 | 21:16 | dawn | 07:16 | 07:57 | 69 % | 04:49 | |||
| Wed, 10-Dec | 15:50 | 16:30 | 22:36 | dawn | 07:17 | 07:58 | 59 % | 05:34 | |||
| Thu, 11-Dec | 15:50 | 16:30 | 23:52 | dawn | 07:18 | 07:59 | 49 % | 06:16 | |||
| Fri, 12-Dec | 15:50 | 16:30 | 01:05 | dawn | 07:19 | 08:00 | 39 % | 06:56 | |||
| Sat, 13-Dec | 15:50 | 16:30 | 02:17 | dawn | 07:20 | 08:00 | 30 % | 07:37 | |||
| Sun, 14-Dec | 15:50 | 16:30 | 03:30 | dawn | 07:21 | 08:01 | 22 % | 08:18 | |||
| Mon, 15-Dec | 15:50 | 16:31 | 04:43 | dawn | 07:22 | 08:02 | 14 % | 09:02 | |||
| Tue, 16-Dec | 15:50 | 16:31 | 05:56 | dawn | 07:22 | 08:03 | 8 % | 09:48 | |||
| Wed, 17-Dec | 15:50 | 16:31 | 07:07 | dawn | 07:23 | 08:04 | 4 % | 10:37 | |||
| Thu, 18-Dec | 15:51 | 16:31 | 07:24 | 08:04 | 1 % | 11:28 | |||||
| Fri, 19-Dec | 15:51 | 16:32 | 07:24 | 08:05 | 0 % | ||||||
| Sat, 20-Dec | 15:51 | 16:32 | 07:25 | 08:05 | 1 % | 12:20 | |||||
| Sun, 21-Dec | 15:52 | 16:33 | dusk | 16:43 | 07:25 | 08:06 | 4 % | 13:12 | |||
| Mon, 22-Dec | 15:52 | 16:33 | dusk | 17:58 | 07:26 | 08:06 | 8 % | 14:03 | |||
| Tue, 23-Dec | 15:53 | 16:34 | dusk | 19:16 | 07:26 | 08:07 | 14 % | 14:51 | |||
| Wed, 24-Dec | 15:54 | 16:34 | dusk | 20:35 | 07:26 | 08:07 | 22 % | 15:38 | |||
| Thu, 25-Dec | 15:54 | 16:35 | dusk | 21:54 | 07:27 | 08:07 | 31 % | 16:22 | |||
| Fri, 26-Dec | 15:55 | 16:36 | dusk | 23:13 | 07:27 | 08:07 | 41 % | 17:07 | |||
| Sat, 27-Dec | 15:56 | 16:37 | dusk | 00:34 | 07:27 | 08:08 | 52 % | 17:52 | |||
| Sun, 28-Dec | 15:57 | 16:37 | dusk | 01:58 | 07:27 | 08:08 | 63 % | 18:39 | |||
| Mon, 29-Dec | 15:58 | 16:38 | dusk | 03:28 | 07:27 | 08:08 | 74 % | 19:30 | |||
| Tue, 30-Dec | 15:59 | 16:39 | dusk | 05:01 | 07:27 | 08:08 | 84 % | 20:26 | after dusk | ||
| Wed, 31-Dec | 16:00 | 16:40 | dusk | 06:31 | 07:27 | 08:08 | 91 % | 21:27 | after dusk | ||
| Thu, 01-Jan | 16:01 | 16:41 | dusk | dawn | 07:27 | 08:07 | 97 % | 22:33 | all night | ||
| Fri, 02-Jan | 16:02 | 16:42 | dusk | dawn | 07:27 | 08:07 | 100 % | 23:40 | all night | ||
| Sat, 03-Jan | 16:03 | 16:43 | dusk | dawn | 07:27 | 08:07 | 99 % | 00:44 | all night | ||
| Sun, 04-Jan | 16:04 | 16:44 | 17:16 | dawn | 07:27 | 08:07 | 96 % | 01:43 | before dawn | ||
| Mon, 05-Jan | 16:05 | 16:45 | 18:46 | dawn | 07:26 | 08:06 | 91 % | 02:37 | before dawn | ||
| Tue, 06-Jan | 16:07 | 16:46 | 20:12 | dawn | 07:26 | 08:06 | 84 % | 03:25 | before dawn | ||
| Wed, 07-Jan | 16:08 | 16:48 | 21:32 | dawn | 07:26 | 08:06 | 76 % | 04:09 | before dawn | ||
| Thu, 08-Jan | 16:09 | 16:49 | 22:49 | dawn | 07:25 | 08:05 | 66 % | 04:52 | |||
| Fri, 09-Jan | 16:11 | 16:50 | 00:03 | dawn | 07:25 | 08:04 | 57 % | 05:33 | |||
| Sat, 10-Jan | 16:12 | 16:51 | 01:16 | dawn | 07:24 | 08:04 | 47 % | 06:15 | |||
| Sun, 11-Jan | 16:13 | 16:53 | 02:29 | dawn | 07:24 | 08:03 | 37 % | 06:58 | |||
| Mon, 12-Jan | 16:15 | 16:54 | 03:43 | dawn | 07:23 | 08:02 | 29 % | 07:43 | |||
| Tue, 13-Jan | 16:16 | 16:55 | 04:55 | dawn | 07:23 | 08:02 | 21 % | 08:31 | |||
Notes
- The percentage of the moon which is illuminated doesn't vary much with location.
- A full moon is not just bigger, it is much brighter. A quarter moon (1/2 disk visible) give less than 5% of the illumination of a full moon. You can walk with a quarter moon if its high in the sky (after dusk for a growing moon, before dawn for a shrinking moon).
- Sky glow (light reflected by air or clouds) from nearby cities, and especially snow on the ground also effect light levels.
- Times will vary a few minutes, as (i) these figures are for the centre of the county the walk is in, (ii) if there are hills on the horizon, and (iii) if you are on a hill
- Sunlight is ~ 1,000,000 times brighter than moonlight.
- Of course, you need a cloudless night as well!