Saunderton via West Wycombe Circular walk

The Chilterns: wooded forests (very muddy in winter), Hughenden Manor (NT), West Wycombe Caves (of Hellfire club fame), finishing with a short ridge walk

Hiking weather forecast

Buckinghamshire hourly weather (Visual Crossing)

Sunset: 19:14. Dusk: 19:48. Dark: 20:28. Moon 98% (dusk to 05:24)

Updated: Mon, 16-Sep at 20:39

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% 0% 0%
Tue, 17 Sep 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0%
Wed, 18 Sep 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0%
Thu, 19 Sep 0% 0% 0% 0% 0% 0% 0% 0% 3% 3% 3% 3% 3% 3% 0% 0%
Fri, 20 Sep 0% 0% 10% 10% 10% 10% 10% 10% 19% 19% 19% 19% 19% 19% 3% 3%
Sat, 21 Sep 7% 7% 10% 10% 10% 10% 10% 10% 26% 26% 26% 26% 26% 26% 36% 36%
Sun, 22 Sep 32% 32% 16% 16% 16% 16% 16% 16% 42% 42% 42% 42% 42% 42% 45% 45%
Mon, 23 Sep 29% 29% 19% 19% 19% 19% 19% 19% 29% 29% 29% 29% 29% 29% 13% 13%
Tue, 24 Sep 0% 0% 7% 7% 7% 7% 7% 7% 16% 16% 16% 16% 16% 16% 19% 19%
Wed, 25 Sep 16% 16% 32% 32% 32% 32% 32% 32% 32% 32% 32% 32% 32% 32% 42% 42%
Thu, 26 Sep 13% 13% 29% 29% 29% 29% 29% 29% 36% 36% 36% 36% 36% 36% 42% 42%
Fri, 27 Sep 10% 10% 23% 23% 23% 23% 23% 23% 26% 26% 26% 26% 26% 26% 29% 29%
Sat, 28 Sep 10% 10% 7% 7% 7% 7% 7% 7% 16% 16% 16% 16% 16% 16% 19% 19%
Sun, 29 Sep 26% 26% 10% 10% 10% 10% 10% 10% 29% 29% 29% 29% 29% 29% 23% 23%
Mon, 30 Sep 10% 10% 13% 13% 13% 13% 13% 13% 26% 26% 26% 26% 26% 26% 29% 29%

Percentages are the chance of rain.

Weather data by Visual Crossing

Buckinghamshire hourly weather (Open Meteo)

Sunset: 19:14. Dusk: 19:48. Dark: 20:28. Moon 98% (dusk to 05:24)

Updated: Mon, 16-Sep at 20:36

06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21
Today 0% 0%
Tue, 17 Sep 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0%
Wed, 18 Sep 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0%
Thu, 19 Sep 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0%
Fri, 20 Sep 2% 3% 4% 6% 8% 10% 12% 13% 14% 16% 17% 18% 18% 18% 17% 15%
Sat, 21 Sep 4% 5% 6% 7% 9% 11% 12% 13% 19% 21% 22% 24% 25% 27% 28% 30%
Sun, 22 Sep 36% 36% 36% 36% 36% 35% 35% 35% 35% 35% 34% 34% 33% 33% 33% 32%
Mon, 23 Sep 🌫 27% 🌫 26% 25% 25% 24% 24% 23% 23% 23% 23% 23% 23% 23% 24% 24% 24%
Tue, 24 Sep 4% 6% 8% 9% 10% 11% 12% 13% 15% 17% 19% 20% 20% 19% 16% 13%
Wed, 25 Sep 16% 16% 18% 20% 23% 27% 30% 32% 30% 26% 23% 23% 25% 26% 27% 27%
Thu, 26 Sep 18% 19% 19% 19% 24% 27% 30% 32% 33% 34% 35% 35% 35% 35% 34% 32%
Fri, 27 Sep 10% 10% 13% 17% 22% 27% 32% 35% 35% 34% 32% 30% 28% 26% 25% 25%
Sat, 28 Sep 12% 10% 9% 9% 9% 9% 9% 10% 11% 12% 13% 14% 15% 16% 16% 16%
Sun, 29 Sep 25% 26% 25% 23% 21% 19% 17% 16% 17% 20% 23% 25% 28% 29% 28% 26%
Mon, 30 Sep 10% 10% 11% 12% 14% 16% 17% 19% 21% 23% 24% 25% 26% 26% 25% 24%
Tue, 01 Oct 14% 13% 12% 12% 12% 12% 12% 13% 15% 18% 20% 22% 25% 26% 26% 25%

Percentages are the chance of rain.

Weather data by Open-Meteo

Buckinghamshire hourly weather (Met Office)

Sunset: 19:14. Dusk: 19:48. Dark: 20:28. Moon 98% (dusk to 05:24)

Updated: Mon, 16-Sep at 20:00

06 09 12 15 18 21
Today 0%
Tue, 17 Sep 0% 0% 0% 0% 0% 0%
Wed, 18 Sep 4% 1% 0% 0% 0% 0%
Thu, 19 Sep 11% 6% 1% 1% 0% 1%
Fri, 20 Sep 10% 8% 33% 12% 6% 3%
Sat, 21 Sep 10% 9% 13% 56% 4% 3%
Sun, 22 Sep 15% 36% 36% 53% 8% 7%
Mon, 23 Sep 12% 9% 9% 9% 5%

Percentages are the chance of rain.

Weather data by Met Office

Regional weather (Met Office)

Sunset: 19:14. Dusk: 19:48. Dark: 20:28. Moon 98% (dusk to 05:24)

Updated: Mon, 16-Sep at 20:38

South East England

Dry, clear and cool overnight. A few isolated fog patches.

  • Dry with clear skies overnight, possibly a few isolated mist or fog patches forming, mainly in the west by dawn
  • Cool, especially away from eastern coasts
  • Chance of an isolated light shower into east Kent coast by dawn
  • Minimum Temperature 6C

Tuesday:

  • Fine, with plenty of sunshine, once any early mist or fog patches clear
  • Any early isolated showers across Kent soon fading
  • Feeling warm, but cooler and breezier along eastern coasts
  • Maximum Temperature 22C

Outlook for Wednesday to Friday:

  • Warm sunny spells throughout, but also strengthening easterly winds
  • Some mist or fog patches possible, mainly overnight or along coasts, where it will feel cooler
  • Showers likely Friday, perhaps thundery

UK Day 6-7 and week 2

  • Settled but often cloudy across many central and northern areas through the weekend, with the best of the sun found to the west of high ground
  • Whereas showers and some thunderstorms are expected by day across the south
  • Most places away from North Sea coasts will see above average temperatures through the weekend
  • Early next week, the risk of showers and thunderstorms will reduce across the south, with a very short-lived settled spell likely as the transition occurs
  • Following this transition areas of cloud, rain and stronger winds are expected to push in from the west once again, but the focus for this heavy rain is likely to be across the southern half of the UK, with more settled conditions perhaps holding on for the longest in the north

UK Week 3 and 4

  • Typical autumn weather will probably affect the UK with a mix of weather types through the first half of October
  • Periods of wet, unsettled weather will likely be broken up by the odd short spell of more settled, drier weather
  • Overall, wetter than average conditions are expected during this period, especially for the south
  • Temperatures are most likely to be close to or slightly above average

Weather data by Met Office

Buckinghamshire Air Quality (Pollen and UV)

Updated: Mon, 16-Sep at 20:36

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   grass   air q   grass   air q       air q      
Tue, 17 Sep air q       air q       air q       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 grass   air q UV grass   air q UV grass   air q UV grass   air q UV grass   air q UV grass   air q UV grass   air q   grass   air q   grass   air q   grass   air q       air q      
Wed, 18 Sep air q       air q       air q       air q       air q       air q       air q       air q UV     air q UV     air q UV   ragweed air q UV   ragweed air q UV   ragweed air q UV grass ragweed air q UV grass ragweed air q UV grass ragweed air q UV grass ragweed air q UV grass ragweed air q UV grass ragweed air q UV grass ragweed air q   grass ragweed air q     ragweed air q     ragweed air q     ragweed air q     ragweed
Thu, 19 Sep air q     ragweed air q     ragweed air q     ragweed air q     ragweed air q     ragweed air q     ragweed air q     ragweed air q UV   ragweed air q UV   ragweed air q UV   ragweed air q UV   ragweed air q UV   ragweed air q UV   ragweed air q UV grass ragweed air q UV grass ragweed air q UV grass ragweed air q UV grass ragweed air q UV grass ragweed air q UV grass ragweed air q   grass ragweed air q   grass ragweed air q     ragweed air q     ragweed air q     ragweed

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

Buckinghamshire Visibility

Updated: Mon, 16-Sep at 20:36

06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21
Today 64km 50km
Tue, 17 Sep 4km 4km 5km 13km 24km 38km 50km 57km 67km 73km 74km 73km 72km 67km 37km 34km
Wed, 18 Sep 4km 3km 5km 13km 24km 34km 47km 54km 60km 61km 64km 63km 58km 46km 20km 10km
Thu, 19 Sep 1km 0km 0km 1km 24km 36km 47km 49km 58km 73km 75km 73km 69km 61km 42km 23km
Fri, 20 Sep 2km 3km 10km 18km 26km 37km 48km 59km 63km 67km 71km 68km 65km 61km 48km 34km

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

Buckinghamshire daylight

Date Light Dawn Sunrise Max Ht. Sunset Dusk Dark Day Length
Mon, 16-Sep 05:25 06:06 06:40 12:57 19:14 19:48 20:28 13:42
Tue, 17-Sep 05:27 06:08 06:41 12:57 19:12 19:45 20:26 13:37
Wed, 18-Sep 05:29 06:09 06:43 12:57 19:09 19:43 20:23 13:33
Thu, 19-Sep 05:31 06:11 06:45 12:56 19:07 19:41 20:21 13:29
Fri, 20-Sep 05:33 06:13 06:46 12:56 19:05 19:38 20:18 13:25
Sat, 21-Sep 05:34 06:14 06:48 12:56 19:02 19:36 20:16 13:21
Sun, 22-Sep 05:36 06:16 06:49 12:55 19:00 19:34 20:13 13:17
Mon, 23-Sep 05:38 06:17 06:51 12:55 18:58 19:31 20:11 13:13
Tue, 24-Sep 05:40 06:19 06:53 12:55 18:55 19:29 20:08 13:09
Wed, 25-Sep 05:41 06:21 06:54 12:54 18:53 19:27 20:06 13:05
Thu, 26-Sep 05:43 06:22 06:56 12:54 18:51 19:24 20:04 13:01
Fri, 27-Sep 05:45 06:24 06:58 12:54 18:49 19:22 20:01 12:57
Sat, 28-Sep 05:46 06:26 06:59 12:53 18:46 19:20 19:59 12:53
Sun, 29-Sep 05:48 06:27 07:01 12:53 18:44 19:17 19:56 12:49
Mon, 30-Sep 05:50 06:29 07:03 12:53 18:42 19:15 19:54 12:45
Tue, 01-Oct 05:52 06:31 07:04 12:52 18:39 19:13 19:52 12:42
Wed, 02-Oct 05:53 06:32 07:06 12:52 18:37 19:10 19:49 12:38
Thu, 03-Oct 05:55 06:34 07:08 12:52 18:35 19:08 19:47 12:34
Fri, 04-Oct 05:57 06:36 07:09 12:51 18:32 19:06 19:45 12:30
Sat, 05-Oct 05:58 06:37 07:11 12:51 18:30 19:04 19:43 12:26
Sun, 06-Oct 06:00 06:39 07:13 12:51 18:28 19:01 19:40 12:22
Mon, 07-Oct 06:02 06:41 07:14 12:50 18:26 18:59 19:38 12:18
Tue, 08-Oct 06:03 06:42 07:16 12:50 18:23 18:57 19:36 12:14
Wed, 09-Oct 06:05 06:44 07:18 12:50 18:21 18:55 19:34 12:10
Thu, 10-Oct 06:07 06:46 07:19 12:50 18:19 18:53 19:31 12:07
Fri, 11-Oct 06:08 06:47 07:21 12:49 18:17 18:50 19:29 12:03
Sat, 12-Oct 06:10 06:49 07:23 12:49 18:15 18:48 19:27 11:59
Sun, 13-Oct 06:12 06:51 07:24 12:49 18:12 18:46 19:25 11:55
Mon, 14-Oct 06:13 06:52 07:26 12:49 18:10 18:44 19:23 11:51
Tue, 15-Oct 06:15 06:54 07:28 12:48 18:08 18:42 19:21 11:48
Wed, 16-Oct 06:17 06:56 07:30 12:48 18:06 18:40 19:19 11:44
Thu, 17-Oct 06:18 06:57 07:31 12:48 18:04 18:38 19:17 11:40
Fri, 18-Oct 06:20 06:59 07:33 12:48 18:02 18:36 19:15 11:36
Sat, 19-Oct 06:22 07:01 07:35 12:48 18:00 18:34 19:13 11:33
Sun, 20-Oct 06:23 07:02 07:37 12:47 17:58 18:32 19:11 11:29
Mon, 21-Oct 06:25 07:04 07:38 12:47 17:55 18:30 19:09 11:25
Tue, 22-Oct 06:26 07:06 07:40 12:47 17:53 18:28 19:07 11:22
Wed, 23-Oct 06:28 07:07 07:42 12:47 17:51 18:26 19:05 11:18
Thu, 24-Oct 06:30 07:09 07:44 12:47 17:49 18:24 19:03 11:15
Fri, 25-Oct 06:31 07:11 07:45 12:47 17:47 18:22 19:01 11:11
Sat, 26-Oct 06:33 07:12 07:47 12:47 17:45 18:20 19:00 11:07
Sun, 27-Oct 05:35 06:14 06:49 11:47 16:43 17:18 17:58 11:04
Mon, 28-Oct 05:36 06:16 06:51 11:46 16:42 17:17 17:56 11:00
Tue, 29-Oct 05:38 06:17 06:52 11:46 16:40 17:15 17:54 10:57
Wed, 30-Oct 05:39 06:19 06:54 11:46 16:38 17:13 17:53 10:54
Thu, 31-Oct 05:41 06:21 06:56 11:46 16:36 17:11 17:51 10:50
Fri, 01-Nov 05:43 06:22 06:58 11:46 16:34 17:10 17:49 10:47
Sat, 02-Nov 05:44 06:24 07:00 11:46 16:32 17:08 17:48 10:43
Sun, 03-Nov 05:46 06:26 07:01 11:46 16:30 17:06 17:46 10:40
Mon, 04-Nov 05:47 06:27 07:03 11:46 16:29 17:05 17:45 10:37
Tue, 05-Nov 05:49 06:29 07:05 11:46 16:27 17:03 17:43 10:34
Wed, 06-Nov 05:50 06:31 07:07 11:46 16:25 17:01 17:42 10:30
Thu, 07-Nov 05:52 06:32 07:09 11:46 16:24 17:00 17:40 10:27
Fri, 08-Nov 05:54 06:34 07:10 11:47 16:22 16:58 17:39 10:24
Sat, 09-Nov 05:55 06:36 07:12 11:47 16:20 16:57 17:37 10:21
Sun, 10-Nov 05:57 06:37 07:14 11:47 16:19 16:56 17:36 10:18
Mon, 11-Nov 05:58 06:39 07:16 11:47 16:17 16:54 17:35 10:15
Tue, 12-Nov 06:00 06:40 07:17 11:47 16:16 16:53 17:34 10:12
Wed, 13-Nov 06:01 06:42 07:19 11:47 16:14 16:51 17:32 10:09
Thu, 14-Nov 06:03 06:44 07:21 11:47 16:13 16:50 17:31 10:06
Fri, 15-Nov 06:04 06:45 07:23 11:47 16:12 16:49 17:30 10:03
Sat, 16-Nov 06:06 06:47 07:24 11:48 16:10 16:48 17:29 10:00
Sun, 17-Nov 06:07 06:48 07:26 11:48 16:09 16:47 17:28 09:58
Mon, 18-Nov 06:09 06:50 07:28 11:48 16:08 16:45 17:27 09:55
Tue, 19-Nov 06:10 06:52 07:29 11:48 16:06 16:44 17:26 09:52
Wed, 20-Nov 06:11 06:53 07:31 11:48 16:05 16:43 17:25 09:50
Thu, 21-Nov 06:13 06:55 07:33 11:49 16:04 16:42 17:24 09:47
Fri, 22-Nov 06:14 06:56 07:34 11:49 16:03 16:41 17:23 09:45
Sat, 23-Nov 06:16 06:58 07:36 11:49 16:02 16:40 17:22 09:42
Sun, 24-Nov 06:17 06:59 07:38 11:50 16:01 16:40 17:22 09:40
Mon, 25-Nov 06:18 07:00 07:39 11:50 16:00 16:39 17:21 09:38
Tue, 26-Nov 06:20 07:02 07:41 11:50 15:59 16:38 17:20 09:36
Wed, 27-Nov 06:21 07:03 07:42 11:51 15:58 16:37 17:20 09:34
Thu, 28-Nov 06:22 07:05 07:44 11:51 15:58 16:37 17:19 09:32
Fri, 29-Nov 06:24 07:06 07:45 11:51 15:57 16:36 17:18 09:30
Sat, 30-Nov 06:25 07:07 07:47 11:52 15:56 16:35 17:18 09:28
Sun, 01-Dec 06:26 07:09 07:48 11:52 15:55 16:35 17:18 09:26
Mon, 02-Dec 06:27 07:10 07:49 11:52 15:55 16:34 17:17 09:24
Tue, 03-Dec 06:28 07:11 07:51 11:53 15:54 16:34 17:17 09:22
Wed, 04-Dec 06:29 07:12 07:52 11:53 15:54 16:34 17:17 09:21
Thu, 05-Dec 06:31 07:13 07:53 11:54 15:53 16:33 17:16 09:19
Fri, 06-Dec 06:32 07:15 07:55 11:54 15:53 16:33 17:16 09:18
Sat, 07-Dec 06:33 07:16 07:56 11:54 15:53 16:33 17:16 09:17
Sun, 08-Dec 06:34 07:17 07:57 11:55 15:52 16:33 17:16 09:15
Mon, 09-Dec 06:35 07:18 07:58 11:55 15:52 16:33 17:16 09:14
Tue, 10-Dec 06:36 07:19 07:59 11:56 15:52 16:32 17:16 09:13
Wed, 11-Dec 06:36 07:20 08:00 11:56 15:52 16:32 17:16 09:12
Thu, 12-Dec 06:37 07:21 08:01 11:57 15:52 16:32 17:16 09:11
Fri, 13-Dec 06:38 07:22 08:02 11:57 15:52 16:33 17:16 09:10
Sat, 14-Dec 06:39 07:22 08:03 11:58 15:52 16:33 17:16 09:10
Sun, 15-Dec 06:40 07:23 08:04 11:58 15:52 16:33 17:16 09:09
Mon, 16-Dec 06:40 07:24 08:05 11:59 15:52 16:33 17:17 09:09
Tue, 17-Dec 06:41 07:25 08:05 11:59 15:53 16:33 17:17 09:08
Wed, 18-Dec 06:42 07:25 08:06 12:00 15:53 16:34 17:17 09:08
Thu, 19-Dec 06:42 07:26 08:07 12:00 15:53 16:34 17:18 09:08
Fri, 20-Dec 06:43 07:27 08:07 12:01 15:54 16:35 17:18 09:07
Sat, 21-Dec 06:44 07:27 08:08 12:01 15:54 16:35 17:19 09:07
Sun, 22-Dec 06:44 07:28 08:08 12:02 15:55 16:36 17:19 09:08
Mon, 23-Dec 06:44 07:28 08:09 12:02 15:55 16:36 17:20 09:08
Tue, 24-Dec 06:45 07:28 08:09 12:03 15:56 16:37 17:20 09:08
Wed, 25-Dec 06:45 07:29 08:09 12:03 15:57 16:37 17:21 09:08
Thu, 26-Dec 06:45 07:29 08:10 12:04 15:58 16:38 17:22 09:09
Fri, 27-Dec 06:46 07:29 08:10 12:04 15:58 16:39 17:22 09:09
Sat, 28-Dec 06:46 07:29 08:10 12:05 15:59 16:40 17:23 09:10
Sun, 29-Dec 06:46 07:30 08:10 12:05 16:00 16:41 17:24 09:11
Mon, 30-Dec 06:46 07:30 08:10 12:05 16:01 16:42 17:25 09:11
Tue, 31-Dec 06:46 07:30 08:10 12:06 16:02 16:42 17:26 09:12
Wed, 01-Jan 06:46 07:30 08:10 12:06 16:03 16:43 17:27 09:13
Thu, 02-Jan 06:46 07:30 08:10 12:07 16:04 16:44 17:28 09:14
Fri, 03-Jan 06:46 07:29 08:10 12:07 16:05 16:46 17:29 09:16
Sat, 04-Jan 06:46 07:29 08:09 12:08 16:07 16:47 17:30 09:17
Sun, 05-Jan 06:46 07:29 08:09 12:08 16:08 16:48 17:31 09:18
Mon, 06-Jan 06:46 07:29 08:09 12:09 16:09 16:49 17:32 09:20
Tue, 07-Jan 06:46 07:28 08:08 12:09 16:10 16:50 17:33 09:21
Wed, 08-Jan 06:45 07:28 08:08 12:10 16:12 16:51 17:34 09:23
Thu, 09-Jan 06:45 07:28 08:07 12:10 16:13 16:53 17:35 09:25
Fri, 10-Jan 06:45 07:27 08:07 12:10 16:15 16:54 17:37 09:26
Sat, 11-Jan 06:44 07:27 08:06 12:11 16:16 16:55 17:38 09:28
Sun, 12-Jan 06:44 07:26 08:05 12:11 16:17 16:57 17:39 09:30
Mon, 13-Jan 06:43 07:25 08:04 12:12 16:19 16:58 17:40 09:32
Tue, 14-Jan 06:43 07:25 08:04 12:12 16:21 16:59 17:42 09:34
Wed, 15-Jan 06:42 07:24 08:03 12:12 16:22 17:01 17:43 09:36
Thu, 16-Jan 06:41 07:23 08:02 12:13 16:24 17:02 17:44 09:39
Fri, 17-Jan 06:41 07:22 08:01 12:13 16:25 17:04 17:46 09:41
Sat, 18-Jan 06:40 07:22 08:00 12:13 16:27 17:05 17:47 09:43
Sun, 19-Jan 06:39 07:21 07:59 12:14 16:29 17:07 17:49 09:46
Mon, 20-Jan 06:38 07:20 07:58 12:14 16:30 17:08 17:50 09:48
Tue, 21-Jan 06:37 07:19 07:57 12:14 16:32 17:10 17:52 09:51
Wed, 22-Jan 06:36 07:18 07:56 12:14 16:34 17:12 17:53 09:53
Thu, 23-Jan 06:35 07:17 07:54 12:15 16:35 17:13 17:55 09:56
Fri, 24-Jan 06:34 07:16 07:53 12:15 16:37 17:15 17:56 09:59
Sat, 25-Jan 06:33 07:14 07:52 12:15 16:39 17:16 17:58 10:01
Sun, 26-Jan 06:32 07:13 07:51 12:15 16:41 17:18 17:59 10:04
Mon, 27-Jan 06:31 07:12 07:49 12:16 16:43 17:20 18:01 10:07
Tue, 28-Jan 06:30 07:11 07:48 12:16 16:44 17:21 18:02 10:10
Wed, 29-Jan 06:29 07:09 07:46 12:16 16:46 17:23 18:04 10:13
Thu, 30-Jan 06:27 07:08 07:45 12:16 16:48 17:25 18:05 10:16
Fri, 31-Jan 06:26 07:07 07:43 12:16 16:50 17:26 18:07 10:19
Sat, 01-Feb 06:25 07:05 07:42 12:16 16:52 17:28 18:09 10:22
Sun, 02-Feb 06:24 07:04 07:40 12:16 16:53 17:30 18:10 10:25
Mon, 03-Feb 06:22 07:02 07:39 12:17 16:55 17:31 18:12 10:29
Tue, 04-Feb 06:21 07:01 07:37 12:17 16:57 17:33 18:13 10:32
Wed, 05-Feb 06:19 06:59 07:35 12:17 16:59 17:35 18:15 10:35
Thu, 06-Feb 06:18 06:58 07:33 12:17 17:01 17:37 18:17 10:38
Fri, 07-Feb 06:16 06:56 07:32 12:17 17:03 17:38 18:18 10:42
Sat, 08-Feb 06:15 06:54 07:30 12:17 17:05 17:40 18:20 10:45
Sun, 09-Feb 06:13 06:53 07:28 12:17 17:06 17:42 18:22 10:49
Mon, 10-Feb 06:11 06:51 07:26 12:17 17:08 17:44 18:23 10:52
Tue, 11-Feb 06:10 06:49 07:25 12:17 17:10 17:45 18:25 10:56
Wed, 12-Feb 06:08 06:48 07:23 12:17 17:12 17:47 18:27 10:59
Thu, 13-Feb 06:06 06:46 07:21 12:17 17:14 17:49 18:28 11:03
Fri, 14-Feb 06:05 06:44 07:19 12:17 17:16 17:51 18:30 11:06
Sat, 15-Feb 06:03 06:42 07:17 12:17 17:18 17:52 18:32 11:10
Sun, 16-Feb 06:01 06:40 07:15 12:17 17:19 17:54 18:33 11:13
Mon, 17-Feb 05:59 06:38 07:13 12:17 17:21 17:56 18:35 11:17
Tue, 18-Feb 05:57 06:37 07:11 12:17 17:23 17:58 18:37 11:21
Wed, 19-Feb 05:56 06:35 07:09 12:17 17:25 17:59 18:38 11:24
Thu, 20-Feb 05:54 06:33 07:07 12:16 17:27 18:01 18:40 11:28
Fri, 21-Feb 05:52 06:31 07:05 12:16 17:29 18:03 18:42 11:32
Sat, 22-Feb 05:50 06:29 07:03 12:16 17:30 18:05 18:44 11:35
Sun, 23-Feb 05:48 06:27 07:01 12:16 17:32 18:06 18:45 11:39
Mon, 24-Feb 05:46 06:25 06:59 12:16 17:34 18:08 18:47 11:43
Tue, 25-Feb 05:44 06:23 06:57 12:16 17:36 18:10 18:49 11:47
Wed, 26-Feb 05:42 06:21 06:54 12:16 17:38 18:12 18:50 11:51
Thu, 27-Feb 05:40 06:18 06:52 12:15 17:39 18:13 18:52 11:54
Fri, 28-Feb 05:38 06:16 06:50 12:15 17:41 18:15 18:54 11:58
Sat, 01-Mar 05:35 06:14 06:48 12:15 17:43 18:17 18:56 12:02
Sun, 02-Mar 05:33 06:12 06:46 12:15 17:45 18:19 18:57 12:06
Mon, 03-Mar 05:31 06:10 06:44 12:15 17:47 18:20 18:59 12:10
Tue, 04-Mar 05:29 06:08 06:41 12:14 17:48 18:22 19:01 12:14
Wed, 05-Mar 05:27 06:06 06:39 12:14 17:50 18:24 19:03 12:18
Thu, 06-Mar 05:25 06:03 06:37 12:14 17:52 18:25 19:04 12:22
Fri, 07-Mar 05:22 06:01 06:35 12:14 17:54 18:27 19:06 12:26
Sat, 08-Mar 05:20 05:59 06:32 12:13 17:55 18:29 19:08 12:30
Sun, 09-Mar 05:18 05:57 06:30 12:13 17:57 18:31 19:10 12:33
Mon, 10-Mar 05:16 05:54 06:28 12:13 17:59 18:32 19:11 12:37
Tue, 11-Mar 05:13 05:52 06:26 12:13 18:01 18:34 19:13 12:41
Wed, 12-Mar 05:11 05:50 06:23 12:12 18:02 18:36 19:15 12:45
Thu, 13-Mar 05:09 05:48 06:21 12:12 18:04 18:38 19:17 12:49
Fri, 14-Mar 05:06 05:45 06:19 12:12 18:06 18:39 19:19 12:53

Max Height (solar noon) is when the sun is highest in the sky.

Day length is dusk to dawn. Times will vary if there is a hill on the horizon.

After 'Light' (nautical dawn) and before 'Dark' (nautical dusk), the horizon should be visible.

After 'Dawn' (civil dawn) and before 'Dusk' (civil dusk, or lighting up time), there should be enough light to read,

There will be enough light for walking for at least 30 minutes before sunrise and after sunset, even on an overcast day.

Buckinghamshire moonlight

Moonlight chart for walking at night.

Night of Sunset Dusk Moon Visible Dawn Sunrise Phase % Full Max. Ht. Night Walk
Mon, 16-Sep 19:14 19:48 dusk 05:24 06:08 06:41 98 % 00:01 after dusk
Tue, 17-Sep 19:12 19:45 dusk dawn 06:09 06:43 100 % 00:53 all night
Wed, 18-Sep 19:09 19:43 dusk dawn 06:11 06:45 99 % 01:44 all night
Thu, 19-Sep 19:07 19:41 dusk dawn 06:13 06:46 95 % 02:36 all night
Fri, 20-Sep 19:05 19:38 19:49 dawn 06:14 06:48 88 % 03:30 before dawn
Sat, 21-Sep 19:02 19:36 20:08 dawn 06:16 06:49 80 % 04:27 before dawn
Sun, 22-Sep 19:00 19:34 20:35 dawn 06:17 06:51 70 % 05:25
Mon, 23-Sep 18:58 19:31 21:13 dawn 06:19 06:53 59 % 06:25
Tue, 24-Sep 18:55 19:29 22:07 dawn 06:21 06:54 48 % 07:23
Wed, 25-Sep 18:53 19:27 23:14 dawn 06:22 06:56 38 % 08:19
Thu, 26-Sep 18:51 19:24 00:30 dawn 06:24 06:58 28 % 09:10
Fri, 27-Sep 18:49 19:22 01:47 dawn 06:26 06:59 20 % 09:57
Sat, 28-Sep 18:46 19:20 03:03 dawn 06:27 07:01 13 % 10:41
Sun, 29-Sep 18:44 19:17 04:16 dawn 06:29 07:03 7 % 11:22
Mon, 30-Sep 18:42 19:15 06:31 07:04 3 %
Tue, 01-Oct 18:39 19:13 06:32 07:06 1 % 12:01
Wed, 02-Oct 18:37 19:10 06:34 07:08 0 % 12:40
Thu, 03-Oct 18:35 19:08 06:36 07:09 1 % 13:19
Fri, 04-Oct 18:32 19:06 06:37 07:11 4 % 14:00
Sat, 05-Oct 18:30 19:04 06:39 07:13 9 % 14:42
Sun, 06-Oct 18:28 19:01 dusk 19:20 06:41 07:14 15 % 15:28
Mon, 07-Oct 18:26 18:59 dusk 19:45 06:42 07:16 23 % 16:17
Tue, 08-Oct 18:23 18:57 dusk 20:23 06:44 07:18 32 % 17:10
Wed, 09-Oct 18:21 18:55 dusk 21:16 06:46 07:19 41 % 18:05
Thu, 10-Oct 18:19 18:53 dusk 22:26 06:47 07:21 52 % 19:02
Fri, 11-Oct 18:17 18:50 dusk 23:49 06:49 07:23 63 % 19:58
Sat, 12-Oct 18:15 18:48 dusk 01:17 06:51 07:24 73 % 20:53
Sun, 13-Oct 18:12 18:46 dusk 02:48 06:52 07:26 83 % 21:46 after dusk
Mon, 14-Oct 18:10 18:44 dusk 04:19 06:54 07:28 91 % 22:37 after dusk
Tue, 15-Oct 18:08 18:42 dusk 05:50 06:56 07:30 97 % 23:28 after dusk
Wed, 16-Oct 18:06 18:40 dusk dawn 06:57 07:31 100 % 00:20 all night
Thu, 17-Oct 18:04 18:38 dusk dawn 06:59 07:33 100 % 01:13 all night
Fri, 18-Oct 18:02 18:36 dusk dawn 07:01 07:35 97 % 02:10 all night
Sat, 19-Oct 18:00 18:34 18:33 dawn 07:02 07:37 91 % 03:10 before dawn
Sun, 20-Oct 17:58 18:32 19:07 dawn 07:04 07:38 83 % 04:11 before dawn
Mon, 21-Oct 17:55 18:30 19:55 dawn 07:06 07:40 74 % 05:12
Tue, 22-Oct 17:53 18:28 21:00 dawn 07:07 07:42 64 % 06:11
Wed, 23-Oct 17:51 18:26 22:15 dawn 07:09 07:44 54 % 07:05
Thu, 24-Oct 17:49 18:24 23:34 dawn 07:11 07:45 44 % 07:54
Fri, 25-Oct 17:47 18:22 00:51 dawn 07:12 07:47 34 % 08:40
Sat, 26-Oct 17:45 18:20 01:05 dawn 06:14 06:49 25 % 08:21
Sun, 27-Oct 16:43 17:18 02:17 dawn 06:16 06:51 17 % 09:01
Mon, 28-Oct 16:42 17:17 03:27 dawn 06:17 06:52 11 % 09:40
Tue, 29-Oct 16:40 17:15 04:37 dawn 06:19 06:54 6 % 10:19
Wed, 30-Oct 16:38 17:13 05:47 dawn 06:21 06:56 2 % 10:59
Thu, 31-Oct 16:36 17:11 06:22 06:58 0 % 11:41
Fri, 01-Nov 16:34 17:10 06:24 07:00 0 %
Sat, 02-Nov 16:32 17:08 06:26 07:01 2 % 12:26
Sun, 03-Nov 16:30 17:06 06:27 07:03 6 % 13:14
Mon, 04-Nov 16:29 17:05 dusk 17:23 06:29 07:05 11 % 14:06
Tue, 05-Nov 16:27 17:03 dusk 18:11 06:31 07:07 18 % 15:01
Wed, 06-Nov 16:25 17:01 dusk 19:15 06:32 07:09 27 % 15:57
Thu, 07-Nov 16:24 17:00 dusk 20:33 06:34 07:10 37 % 16:52
Fri, 08-Nov 16:22 16:58 dusk 21:57 06:36 07:12 47 % 17:46
Sat, 09-Nov 16:20 16:57 dusk 23:24 06:37 07:14 58 % 18:37
Sun, 10-Nov 16:19 16:56 dusk 00:51 06:39 07:16 69 % 19:27
Mon, 11-Nov 16:17 16:54 dusk 02:19 06:40 07:17 79 % 20:16 after dusk
Tue, 12-Nov 16:16 16:53 dusk 03:48 06:42 07:19 88 % 21:05 after dusk
Wed, 13-Nov 16:14 16:51 dusk 05:20 06:44 07:21 95 % 21:57 after dusk
Thu, 14-Nov 16:13 16:50 dusk dawn 06:45 07:23 99 % 22:51 all night
Fri, 15-Nov 16:12 16:49 dusk dawn 06:47 07:24 100 % 23:49 all night
Sat, 16-Nov 16:10 16:48 dusk dawn 06:48 07:26 98 % 00:51 all night
Sun, 17-Nov 16:09 16:47 dusk dawn 06:50 07:28 94 % 01:54 all night
Mon, 18-Nov 16:08 16:45 17:40 dawn 06:52 07:29 87 % 02:56 before dawn
Tue, 19-Nov 16:06 16:44 18:54 dawn 06:53 07:31 79 % 03:54 before dawn
Wed, 20-Nov 16:05 16:43 20:14 dawn 06:55 07:33 70 % 04:47
Thu, 21-Nov 16:04 16:42 21:34 dawn 06:56 07:34 61 % 05:35
Fri, 22-Nov 16:03 16:41 22:51 dawn 06:58 07:36 51 % 06:18
Sat, 23-Nov 16:02 16:40 00:04 dawn 06:59 07:38 41 % 06:59
Sun, 24-Nov 16:01 16:40 01:15 dawn 07:00 07:39 32 % 07:38
Mon, 25-Nov 16:00 16:39 02:24 dawn 07:02 07:41 24 % 08:17
Tue, 26-Nov 15:59 16:38 03:34 dawn 07:03 07:42 16 % 08:56
Wed, 27-Nov 15:58 16:37 04:46 dawn 07:05 07:44 10 % 09:38
Thu, 28-Nov 15:58 16:37 06:01 dawn 07:06 07:45 5 % 10:22
Fri, 29-Nov 15:57 16:36 07:07 07:47 2 % 11:09
Sat, 30-Nov 15:56 16:35 07:09 07:48 0 %
Sun, 01-Dec 15:55 16:35 07:10 07:49 1 % 12:01
Mon, 02-Dec 15:55 16:34 07:11 07:51 3 % 12:55
Tue, 03-Dec 15:54 16:34 dusk 17:08 07:12 07:52 8 % 13:52
Wed, 04-Dec 15:54 16:34 dusk 18:23 07:13 07:53 14 % 14:48
Thu, 05-Dec 15:53 16:33 dusk 19:45 07:15 07:55 23 % 15:42
Fri, 06-Dec 15:53 16:33 dusk 21:11 07:16 07:56 32 % 16:34
Sat, 07-Dec 15:53 16:33 dusk 22:36 07:17 07:57 43 % 17:23
Sun, 08-Dec 15:52 16:33 dusk 00:00 07:18 07:58 54 % 18:11
Mon, 09-Dec 15:52 16:33 dusk 01:25 07:19 07:59 65 % 18:58
Tue, 10-Dec 15:52 16:32 dusk 02:53 07:20 08:00 76 % 19:47 after dusk
Wed, 11-Dec 15:52 16:32 dusk 04:23 07:21 08:01 85 % 20:38 after dusk
Thu, 12-Dec 15:52 16:32 dusk 05:56 07:22 08:02 92 % 21:32 after dusk
Fri, 13-Dec 15:52 16:33 dusk dawn 07:22 08:03 97 % 22:31 all night
Sat, 14-Dec 15:52 16:33 dusk dawn 07:23 08:04 100 % 23:33 all night
Sun, 15-Dec 15:52 16:33 dusk dawn 07:24 08:05 99 % 00:36 all night
Mon, 16-Dec 15:52 16:33 dusk dawn 07:25 08:05 96 % 01:37 all night
Tue, 17-Dec 15:53 16:33 17:47 dawn 07:25 08:06 92 % 02:34 before dawn
Wed, 18-Dec 15:53 16:34 19:10 dawn 07:26 08:07 85 % 03:25 before dawn
Thu, 19-Dec 15:53 16:34 20:31 dawn 07:27 08:07 77 % 04:11 before dawn
Fri, 20-Dec 15:54 16:35 21:47 dawn 07:27 08:08 68 % 04:54
Sat, 21-Dec 15:54 16:35 22:59 dawn 07:28 08:08 59 % 05:34
Sun, 22-Dec 15:55 16:36 00:10 dawn 07:28 08:09 49 % 06:13
Mon, 23-Dec 15:55 16:36 01:20 dawn 07:28 08:09 40 % 06:52
Tue, 24-Dec 15:56 16:37 02:31 dawn 07:29 08:09 31 % 07:33
Wed, 25-Dec 15:57 16:37 03:44 dawn 07:29 08:10 23 % 08:16
Thu, 26-Dec 15:58 16:38 04:59 dawn 07:29 08:10 15 % 09:02
Fri, 27-Dec 15:58 16:39 06:16 dawn 07:29 08:10 9 % 09:52
Sat, 28-Dec 15:59 16:40 07:28 dawn 07:30 08:10 4 % 10:46
Sun, 29-Dec 16:00 16:41 07:30 08:10 1 % 11:42
Mon, 30-Dec 16:01 16:42 07:30 08:10 0 %
Tue, 31-Dec 16:02 16:42 07:30 08:10 1 % 12:40
Wed, 01-Jan 16:03 16:43 dusk 17:30 07:30 08:10 5 % 13:36
Thu, 02-Jan 16:04 16:44 dusk 18:57 07:29 08:10 11 % 14:30
Fri, 03-Jan 16:05 16:46 dusk 20:24 07:29 08:09 19 % 15:21
Sat, 04-Jan 16:07 16:47 dusk 21:49 07:29 08:09 28 % 16:09
Sun, 05-Jan 16:08 16:48 dusk 23:13 07:29 08:09 39 % 16:56
Mon, 06-Jan 16:09 16:49 dusk 00:38 07:28 08:08 50 % 17:44
Tue, 07-Jan 16:10 16:50 dusk 02:05 07:28 08:08 61 % 18:33
Wed, 08-Jan 16:12 16:51 dusk 03:35 07:28 08:07 72 % 19:24
Thu, 09-Jan 16:13 16:53 dusk 05:04 07:27 08:07 82 % 20:20 after dusk
Fri, 10-Jan 16:15 16:54 dusk 06:27 07:27 08:06 90 % 21:19 after dusk
Sat, 11-Jan 16:16 16:55 dusk dawn 07:26 08:05 95 % 22:20 all night
Sun, 12-Jan 16:17 16:57 dusk dawn 07:25 08:04 99 % 23:21 all night
Mon, 13-Jan 16:19 16:58 dusk dawn 07:25 08:04 100 % 00:19 all night
Tue, 14-Jan 16:21 16:59 dusk dawn 07:24 08:03 99 % 01:13 all night
Wed, 15-Jan 16:22 17:01 18:06 dawn 07:23 08:02 95 % 02:02 before dawn
Thu, 16-Jan 16:24 17:02 19:25 dawn 07:22 08:01 90 % 02:47 before dawn
Fri, 17-Jan 16:25 17:04 20:41 dawn 07:22 08:00 84 % 03:29 before dawn
Sat, 18-Jan 16:27 17:05 21:53 dawn 07:21 07:59 76 % 04:08 before dawn
Sun, 19-Jan 16:29 17:07 23:03 dawn 07:20 07:58 67 % 04:48
Mon, 20-Jan 16:30 17:08 00:14 dawn 07:19 07:57 58 % 05:27
Tue, 21-Jan 16:32 17:10 01:26 dawn 07:18 07:56 49 % 06:09
Wed, 22-Jan 16:34 17:12 02:40 dawn 07:17 07:54 39 % 06:53
Thu, 23-Jan 16:35 17:13 03:56 dawn 07:16 07:53 30 % 07:41
Fri, 24-Jan 16:37 17:15 05:10 dawn 07:14 07:52 22 % 08:33
Sat, 25-Jan 16:39 17:16 06:17 dawn 07:13 07:51 14 % 09:29
Sun, 26-Jan 16:41 17:18 07:11 dawn 07:12 07:49 8 % 10:26
Mon, 27-Jan 16:43 17:20 07:11 07:48 3 % 11:24
Tue, 28-Jan 16:44 17:21 07:09 07:46 0 %
Wed, 29-Jan 16:46 17:23 07:08 07:45 0 % 12:20
Thu, 30-Jan 16:48 17:25 dusk 18:03 07:07 07:43 3 % 13:13
Fri, 31-Jan 16:50 17:26 dusk 19:31 07:05 07:42 8 % 14:04
Sat, 01-Feb 16:52 17:28 dusk 20:58 07:04 07:40 15 % 14:53
Sun, 02-Feb 16:53 17:30 dusk 22:25 07:02 07:39 25 % 15:41
Mon, 03-Feb 16:55 17:31 dusk 23:53 07:01 07:37 35 % 16:30
Tue, 04-Feb 16:57 17:33 dusk 01:22 06:59 07:35 46 % 17:21
Wed, 05-Feb 16:59 17:35 dusk 02:51 06:58 07:33 58 % 18:15
Thu, 06-Feb 17:01 17:37 dusk 04:16 06:56 07:32 68 % 19:12
Fri, 07-Feb 17:03 17:38 dusk 05:28 06:54 07:30 78 % 20:12 after dusk
Sat, 08-Feb 17:05 17:40 dusk 06:22 06:53 07:28 86 % 21:12 after dusk
Sun, 09-Feb 17:06 17:42 dusk dawn 06:51 07:26 93 % 22:10 all night
Mon, 10-Feb 17:08 17:44 dusk dawn 06:49 07:25 97 % 23:04 all night
Tue, 11-Feb 17:10 17:45 dusk dawn 06:48 07:23 100 % 23:54 all night
Wed, 12-Feb 17:12 17:47 dusk dawn 06:46 07:21 100 % 00:41 all night
Thu, 13-Feb 17:14 17:49 18:22 dawn 06:44 07:19 98 % 01:23 before dawn
Fri, 14-Feb 17:16 17:51 19:35 dawn 06:42 07:17 94 % 02:04 before dawn
Sat, 15-Feb 17:18 17:52 20:47 dawn 06:40 07:15 89 % 02:43 before dawn
Sun, 16-Feb 17:19 17:54 21:58 dawn 06:38 07:13 83 % 03:23 before dawn
Mon, 17-Feb 17:21 17:56 23:10 dawn 06:37 07:11 75 % 04:04
Tue, 18-Feb 17:23 17:58 00:23 dawn 06:35 07:09 66 % 04:47
Wed, 19-Feb 17:25 17:59 01:38 dawn 06:33 07:07 57 % 05:33
Thu, 20-Feb 17:27 18:01 02:52 dawn 06:31 07:05 48 % 06:22
Fri, 21-Feb 17:29 18:03 04:01 dawn 06:29 07:03 38 % 07:15
Sat, 22-Feb 17:30 18:05 05:01 dawn 06:27 07:01 28 % 08:11
Sun, 23-Feb 17:32 18:06 05:45 dawn 06:25 06:59 20 % 09:08
Mon, 24-Feb 17:34 18:08 06:17 dawn 06:23 06:57 12 % 10:04
Tue, 25-Feb 17:36 18:10 06:21 06:54 6 % 10:59
Wed, 26-Feb 17:38 18:12 06:18 06:52 2 % 11:51
Thu, 27-Feb 17:39 18:13 06:16 06:50 0 %
Fri, 28-Feb 17:41 18:15 dusk 18:31 06:14 06:48 1 % 12:42
Sat, 01-Mar 17:43 18:17 dusk 20:01 06:12 06:46 6 % 13:32
Sun, 02-Mar 17:45 18:19 dusk 21:31 06:10 06:44 12 % 14:22
Mon, 03-Mar 17:47 18:20 dusk 23:03 06:08 06:41 21 % 15:14
Tue, 04-Mar 17:48 18:22 dusk 00:36 06:06 06:39 31 % 16:09
Wed, 05-Mar 17:50 18:24 dusk 02:04 06:03 06:37 42 % 17:06
Thu, 06-Mar 17:52 18:25 dusk 03:22 06:01 06:35 54 % 18:06
Fri, 07-Mar 17:54 18:27 dusk 04:22 05:59 06:32 64 % 19:06
Sat, 08-Mar 17:55 18:29 dusk 05:03 05:57 06:30 74 % 20:05
Sun, 09-Mar 17:57 18:31 dusk 05:31 05:54 06:28 83 % 21:00 after dusk
Mon, 10-Mar 17:59 18:32 dusk 05:50 05:52 06:26 90 % 21:51 after dusk
Tue, 11-Mar 18:01 18:34 dusk dawn 05:50 06:23 95 % 22:37 all night
Wed, 12-Mar 18:02 18:36 dusk dawn 05:48 06:21 98 % 23:20 all night
Thu, 13-Mar 18:04 18:38 dusk dawn 05:45 06:19 100 % 00:01 all night
Fri, 14-Mar 18:06 18:39 dusk dawn 05:43 06:17 100 % 00:41 all night

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
  • Of course, you need a cloudless night as well!

Buckinghamshire weather (Accuweather)

Now would be a good time for a cup of tea.