Snowdon Walk

A beginners guide to safely climbing the highest mountain in England and Wales.

Hiking weather forecast

Snowdonia hourly weather (Visual Crossing)

Sunset: 16:01. Dusk: 16:42. Dark: 17:26. Moon 8% (dusk to 17:12)

Updated: Tue, 03-Dec at 11:39

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% 61% 61% 61%
Wed, 04 Dec 32% 3% 3% 3% 3% 3% 3% 45% 45% 45% 45% 45% 45% 100% 100% 100%
Thu, 05 Dec 61% 52% 52% 52% 52% 52% 52% 100% 100% 100% 100% 100% 100% 84% 84% 84%
Fri, 06 Dec 16% 45% 45% 45% 45% 45% 45% 81% 81% 81% 81% 81% 81% 97% 97% 97%
Sat, 07 Dec 97% 97% 97% 97% 97% 97% 97% 100% 100% 100% 100% 100% 100% 94% 94% 94%
Sun, 08 Dec 84% 42% 42% 42% 42% 42% 42% 52% 52% 52% 52% 52% 52% 58% 58% 58%
Mon, 09 Dec 19% 26% 26% 26% 26% 26% 26% 23% 23% 23% 23% 23% 23% 16% 16% 16%
Tue, 10 Dec 7% 10% 10% 10% 10% 10% 10% 16% 16% 16% 16% 16% 16% 7% 7% 7%
Wed, 11 Dec 13% 19% 19% 19% 19% 19% 19% 19% 19% 19% 19% 19% 19% 23% 23% 23%
Thu, 12 Dec 19% 36% 36% 36% 36% 36% 36% 52% 52% 52% 52% 52% 52% 61% 61% 61%
Fri, 13 Dec 45% 32% 32% 32% 32% 32% 32% 45% 45% 45% 45% 45% 45% 🌫 36% 🌫 36% 🌫 36%
Sat, 14 Dec 36% 45% 45% 45% 45% 45% 45% 52% 52% 52% 52% 52% 52% 68% 68% 68%
Sun, 15 Dec 32% 45% 45% 45% 45% 45% 45% 32% 32% 32% 32% 32% 32% 61% 61% 61%
Mon, 16 Dec 45% 36% 36% 36% 36% 36% 🌫 36% 55% 55% 55% 55% 55% 55% 74% 74% 74%
Tue, 17 Dec 68% 55% 55% 55% 55% 55% 55% 68% 68% 68% 68% 68% 68% 77% 77% 77%

Percentages are the chance of rain.

Weather data by Visual Crossing

Snowdonia hourly weather (Open Meteo)

Sunset: 16:01. Dusk: 16:42. Dark: 17:26. Moon 8% (dusk to 17:12)

Updated: Tue, 03-Dec at 11:37

06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21
Today 0% 0% 1% 3% 4% 3% 1% 2% 6% 12% 22%
Wed, 04 Dec 6% 1% 4% 6% 7% 8% 10% 10% 10% 16% 33% 55% 73% 82% 86% 90%
Thu, 05 Dec 67% 65% 67% 71% 77% 86% 92% 95% 96% 96% 95% 92% 90% 89% 87% 84%
Fri, 06 Dec 29% 28% 28% 29% 32% 36% 41% 47% 54% 59% 60% 59% 59% 62% 66% 69%
Sat, 07 Dec 80% 83% 87% 90% 92% 94% 94% 94% 92% 88% 79% 66% 57% 53% 52% 51%
Sun, 08 Dec 47% 45% 42% 41% 42% 45% 47% 49% 52% 51% 46% 37% 31% 29% 28% 27%
Mon, 09 Dec 8% 7% 6% 5% 4% 4% 4% 4% 4% 4% 4% 4% 4% 4% 3% 3%
Tue, 10 Dec 2% 3% 3% 4% 5% 6% 6% 6% 5% 5% 5% 4% 4% 4% 5% 6%
Wed, 11 Dec 8% 9% 10% 11% 12% 13% 14% 15% 15% 16% 17% 17% 18% 19% 21% 22%
Thu, 12 Dec 27% 26% 25% 24% 23% 21% 20% 20% 20% 20% 20% 20% 20% 19% 17% 16%
Fri, 13 Dec 24% 25% 26% 27% 28% 29% 29% 29% 28% 28% 27% 27% 27% 28% 29% 31%
Sat, 14 Dec 37% 38% 38% 39% 40% 41% 41% 41% 40% 40% 39% 39% 39% 40% 41% 43%
Sun, 15 Dec 45% 45% 46% 47% 48% 48% 49% 50% 52% 53% 54% 55% 55% 54% 53% 51%
Mon, 16 Dec 41% 42% 43% 44% 45% 46% 47% 47% 47% 47% 47% 47% 47% 47% 48% 48%
Tue, 17 Dec 51% 51% 51% 51% 51% 51% 51% 52% 53% 54% 55% 55% 55% 54% 53% 51%
Wed, 18 Dec 52% 48% 43% 38% 33% 29% 26% 26% 28% 31% 34% 37% 39% 39% 39% 38%

Percentages are the chance of rain.

Weather data by Open-Meteo

Snowdonia hourly weather (Met Office)

Sunset: 16:01. Dusk: 16:42. Dark: 17:26. Moon 8% (dusk to 17:12)

Updated: Tue, 03-Dec at 11:00

06 09 12 15 18 21
Today 5% 7% 5% 15%
Wed, 04 Dec 🌫 15% 🌫 16% 48% 9% 89% 95%
Thu, 05 Dec 11% 51% 57% 83% 60% 50%
Fri, 06 Dec 10% 5% 12% 15% 54% 80%
Sat, 07 Dec 58% 49% 42% 38% 53% 37%
Sun, 08 Dec 37% 36% 16% 11% 12% 10%
Mon, 09 Dec 7% 8% 9% 8% 10% 5%
Tue, 10 Dec 10% 11%

Percentages are the chance of rain.

Weather data by Met Office

Regional weather (Met Office)

Sunset: 16:01. Dusk: 16:42. Dark: 17:26. Moon 8% (dusk to 17:12)

Updated: Tue, 03-Dec at 11:38

Wales

Largely dry today but the odd shower is possible.

  • Frost and fog clearing during the morning to leave sunny spells and broken cloud
  • Turning cloudier through the afternoon with showers possible in the west
  • Feeling chilly despite light winds
  • Maximum Temperature 8C

Tonight:

  • A band of cloud and showery rain will spread south this evening, clearing overnight
  • Clear skies ahead of and behind of this, will allow some patchy fog and frost
  • Minimum Temperature -1C

Wednesday:

  • Often bright skies with a mixture of cloud and hazy sunny periods
  • A milder day than on Tuesday, although freshening southerly winds will herald wet and windy weather overnight
  • Maximum Temperature 10C

Outlook for Thursday to Saturday:

  • Blustery on Thursday with showers or longer spells of rain arriving later and possibly turning very windy
  • A calmer interlude on Friday before turning very unsettled on Saturday
  • Often mild

UK Day 6-7 and week 2

  • A spell of wet and windy weather is expected to impact many areas for a time into the coming weekend
  • Colder, showery and windy conditions then following for the remainder of the weekend
  • High pressure then very likely to have increasing influence into the following week with more settled conditions becoming established for a time
  • This should mean a good deal of dry weather with overnight frosts along with morning fog patches for some regions
  • Through to the end of this period there is an increased chance of spells of wetter and windier weather returning, these more likely in the north with southern areas having a better chance of more prolonged settled/drier weather
  • Temperatures varying around average with both some colder and milder spells likely through this period

UK Week 3 and 4

  • Initially, high pressure is likely to be dominant, especially across the south, with relatively settled conditions likely overall
  • Frontal systems may still affect north and northwest UK at times
  • During the first few days of this period, however, a change to more unsettled conditions appears likely for a time, bringing a greater prevalence of rain and showers to most areas but especially the northwest
  • Some of the showers could be wintry, especially on high ground
  • Later in the month, there are signals that higher pressure may become re-established, with more settled conditions likely to develop, particularly across the south
  • Temperatures are likely to be around average overall, with colder interludes bringing frost and fog

Weather data by Met Office

Snowdonia mountain weather forecast (Met Office)

Updated: Tue, 03-Dec at 02:35

Specialist mountain forecast: MWIS

Today
Tue, 03-Dec

Mainly dry, bright and cold day. Outbreaks of rain and sleet late evening.

Rather cloud start with isolated showers, wintry above 300m. Frost in the morning then turning dry with bright or sunny spells across all parts of the Park. A band of rain will arrive from the northwest in the evening, preceded by sleet or snow above 350m.

Low risk Severe Chill Effect Poor Visibility
Low risk Severe Chill Effect Poor Visibility
Chance of Cloud free tops 80%, becoming 20% or less in the evening
Ground conditions Please see - https://yrwyddfa.live/
Visibility Hills mostly clear of cloud but some patches above 500m at first, then becoming more extensive in the evening. Mainly good visibility but locally a few kilometres in any showers and becoming poor later in the evening as rain, sleet and snow arrives.
Confidence High for generally fair conditions on Tuesday but some uncertainty in the timing of rain, sleet and snow arriving in the evening. High for unsettled weather for the rest of the week but lower for day to day detail.
View Good hill walking conditions through daylight hours but note much poorer conditions will quickly develop during the evening.

Conditions on the tops at 900m

Time Weather Rain Temp Wind Freezing
06:00 Light rain showers (night) 40% 0 6 800m
09:00 Light rain showers 30% 0 8 700m
12:00 Sunny intervals 30% -0 11 800m
15:00 Cloudy 10% -0 16 800m
18:00 Cloudy 30% 0 14 900m
21:00 Sleet 70% 1 22 1500m
Wed, 04-Dec

Rain or sleet clearing overnight then dry with clear spells and some frost to start the day. Dry through daylight hours with sunshine in the morning but cloudy in the afternoon. Rain, preceded by summit snow, will quickly spread east after dark, becoming heavy and persistent with gale force winds arriving, and across highest summits storm force winds are probable.

Ice 700m, rising above summits during evening.
Visibility Mainly good visibility but patchy fog in the valleys will be slow to clear, also patchy fog forming above 600m in the afternoon. Very poor after dark with extensive cloud developing above 400m.
Wind Variable 5 to 10mph at first, becoming South 20mph gusts 30mph in afternoon then 30 to 40mph gusts 60-70mph in the evening.
Temp (tops) 0 degrees Celsius rising to 5 degrees Celsius. at 800m
Thu, 05-Dec

Heavy and persistent rain will clear overnight. Drier and brighter in the morning but showers or longer spells of rain will spread east, perhaps heavy and thundery. Strong or gale force southwest winds. Freezing level above summits.

Fri, 06-Dec

A window of dry and bright weather with light winds before another frontal system arrives later bringing rain, sleet or snow and gales. Freezing level around 700m.

Sat, 07-Dec

Expected to be very unsettled with spells of rain, sleet or snow and strong winds. Stormy conditions are probable.

Weather data by Met Office

Snowdonia Air Quality (Pollen and UV)

Updated: Tue, 03-Dec at 11:37

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 air q UV air q UV air q UV air q UV air q   air q   air q   air q   air q   air q   air q   air q  
Wed, 04 Dec air q   air q   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 air q UV air q   air q   air q   air q   air q   air q   air q   air q  
Thu, 05 Dec air q   air q   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 air q UV air q   air q   air q   air q   air q   air q   air q   air q  
Fri, 06 Dec air q   air q   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 air q UV air q   air q   air q   air q   air q   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

Snowdonia Visibility

Updated: Tue, 03-Dec at 11:37

06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21
Today 14km 14km 16km 14km 9km 3km 3km 3km 6km 8km 3km
Wed, 04 Dec 3km 2km 4km 3km 4km 5km 7km 7km 4km 2km 2km 2km 2km 2km 0km 2km
Thu, 05 Dec 2km 2km 2km 3km 2km 2km 2km 1km 1km 1km 2km 3km 28km 40km 38km 35km
Fri, 06 Dec 14km 14km 11km 15km 16km 15km 12km 8km 5km 1km 2km 4km 5km 9km 12km 15km
Sat, 07 Dec 4km 6km 7km 9km 11km 13km 15km 19km 24km 28km 29km 30km 31km 25km 20km 15km

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

Snowdonia daylight

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

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.

Snowdonia moonlight

Moonlight chart for walking at night.

Night of Sunset Dusk Moon Visible Dawn Sunrise Phase % Full Max. Ht. Night Walk
Tue, 03-Dec 16:01 16:42 dusk 17:12 07:29 08:10 8 % 14:05
Wed, 04-Dec 16:01 16:42 dusk 18:28 07:30 08:11 14 % 15:01
Thu, 05-Dec 16:00 16:42 dusk 19:52 07:31 08:13 23 % 15:55
Fri, 06-Dec 16:00 16:41 dusk 21:20 07:32 08:14 32 % 16:47
Sat, 07-Dec 15:59 16:41 dusk 22:46 07:33 08:15 43 % 17:36
Sun, 08-Dec 15:59 16:41 dusk 00:13 07:34 08:16 54 % 18:24
Mon, 09-Dec 15:59 16:41 dusk 01:39 07:35 08:17 65 % 19:11
Tue, 10-Dec 15:59 16:41 dusk 03:08 07:36 08:18 76 % 20:00 after dusk
Wed, 11-Dec 15:59 16:40 dusk 04:40 07:37 08:19 85 % 20:50 after dusk
Thu, 12-Dec 15:59 16:40 dusk 06:15 07:38 08:20 92 % 21:45 after dusk
Fri, 13-Dec 15:59 16:41 dusk dawn 07:39 08:21 97 % 22:44 all night
Sat, 14-Dec 15:59 16:41 dusk dawn 07:40 08:22 100 % 23:46 all night
Sun, 15-Dec 15:59 16:41 dusk dawn 07:41 08:23 99 % 00:49 all night
Mon, 16-Dec 15:59 16:41 dusk dawn 07:41 08:24 96 % 01:50 all night
Tue, 17-Dec 15:59 16:41 17:53 dawn 07:42 08:24 92 % 02:46 before dawn
Wed, 18-Dec 15:59 16:42 19:18 dawn 07:43 08:25 85 % 03:38 before dawn
Thu, 19-Dec 16:00 16:42 20:40 dawn 07:43 08:26 77 % 04:24 before dawn
Fri, 20-Dec 16:00 16:42 21:57 dawn 07:44 08:26 68 % 05:07
Sat, 21-Dec 16:01 16:43 23:11 dawn 07:44 08:27 59 % 05:47
Sun, 22-Dec 16:01 16:44 00:23 dawn 07:45 08:27 49 % 06:26
Mon, 23-Dec 16:02 16:44 01:34 dawn 07:45 08:27 40 % 07:05
Tue, 24-Dec 16:03 16:45 02:46 dawn 07:45 08:28 31 % 07:45
Wed, 25-Dec 16:03 16:45 04:01 dawn 07:46 08:28 23 % 08:28
Thu, 26-Dec 16:04 16:46 05:18 dawn 07:46 08:28 15 % 09:14
Fri, 27-Dec 16:05 16:47 06:36 dawn 07:46 08:28 9 % 10:05
Sat, 28-Dec 16:06 16:48 07:46 08:28 4 % 10:59
Sun, 29-Dec 16:07 16:49 07:46 08:28 1 % 11:55
Mon, 30-Dec 16:08 16:50 07:46 08:28 0 %
Tue, 31-Dec 16:09 16:51 07:46 08:28 1 % 12:53
Wed, 01-Jan 16:10 16:52 dusk 17:37 07:46 08:28 5 % 13:49
Thu, 02-Jan 16:11 16:53 dusk 19:05 07:46 08:28 11 % 14:43
Fri, 03-Jan 16:12 16:54 dusk 20:34 07:46 08:27 19 % 15:34
Sat, 04-Jan 16:13 16:55 dusk 22:01 07:45 08:27 28 % 16:22
Sun, 05-Jan 16:15 16:56 dusk 23:27 07:45 08:26 39 % 17:09
Mon, 06-Jan 16:16 16:57 dusk 00:53 07:45 08:26 50 % 17:56
Tue, 07-Jan 16:17 16:58 dusk 02:22 07:44 08:25 61 % 18:45
Wed, 08-Jan 16:19 17:00 dusk 03:53 07:44 08:25 72 % 19:37
Thu, 09-Jan 16:20 17:01 dusk 05:25 07:43 08:24 82 % 20:32 after dusk
Fri, 10-Jan 16:22 17:02 dusk 06:49 07:43 08:23 90 % 21:32 after dusk
Sat, 11-Jan 16:23 17:04 dusk dawn 07:42 08:23 95 % 22:33 all night
Sun, 12-Jan 16:25 17:05 dusk dawn 07:42 08:22 99 % 23:34 all night
Mon, 13-Jan 16:26 17:07 dusk dawn 07:41 08:21 100 % 00:32 all night
Tue, 14-Jan 16:28 17:08 dusk dawn 07:40 08:20 99 % 01:26 all night
Wed, 15-Jan 16:29 17:10 18:15 dawn 07:39 08:19 95 % 02:15 before dawn
Thu, 16-Jan 16:31 17:11 19:35 dawn 07:38 08:18 90 % 03:00 before dawn
Fri, 17-Jan 16:33 17:13 20:52 dawn 07:37 08:17 84 % 03:41 before dawn
Sat, 18-Jan 16:34 17:14 22:05 dawn 07:37 08:16 76 % 04:21 before dawn
Sun, 19-Jan 16:36 17:16 23:17 dawn 07:36 08:15 67 % 05:00
Mon, 20-Jan 16:38 17:17 00:29 dawn 07:34 08:14 58 % 05:40
Tue, 21-Jan 16:40 17:19 01:43 dawn 07:33 08:12 49 % 06:22
Wed, 22-Jan 16:42 17:21 02:59 dawn 07:32 08:11 39 % 07:06
Thu, 23-Jan 16:43 17:22 04:16 dawn 07:31 08:10 30 % 07:54
Fri, 24-Jan 16:45 17:24 05:32 dawn 07:30 08:08 22 % 08:46
Sat, 25-Jan 16:47 17:26 06:39 dawn 07:29 08:07 14 % 09:41
Sun, 26-Jan 16:49 17:27 07:27 08:06 8 % 10:39
Mon, 27-Jan 16:51 17:29 07:26 08:04 3 % 11:37
Tue, 28-Jan 16:53 17:31 07:25 08:03 0 %
Wed, 29-Jan 16:55 17:33 07:23 08:01 0 % 12:32
Thu, 30-Jan 16:56 17:34 dusk 18:12 07:22 07:59 3 % 13:26
Fri, 31-Jan 16:58 17:36 dusk 19:42 07:20 07:58 8 % 14:16
Sat, 01-Feb 17:00 17:38 dusk 21:11 07:19 07:56 15 % 15:05
Sun, 02-Feb 17:02 17:40 dusk 22:39 07:17 07:54 25 % 15:54
Mon, 03-Feb 17:04 17:41 dusk 00:09 07:16 07:53 35 % 16:43
Tue, 04-Feb 17:06 17:43 dusk 01:40 07:14 07:51 46 % 17:34
Wed, 05-Feb 17:08 17:45 dusk 03:11 07:12 07:49 58 % 18:28
Thu, 06-Feb 17:10 17:47 dusk 04:37 07:11 07:47 68 % 19:25
Fri, 07-Feb 17:12 17:49 dusk 05:50 07:09 07:45 78 % 20:24 after dusk
Sat, 08-Feb 17:14 17:50 dusk 06:44 07:07 07:44 86 % 21:25 after dusk
Sun, 09-Feb 17:16 17:52 dusk dawn 07:05 07:42 93 % 22:23 all night
Mon, 10-Feb 17:18 17:54 dusk dawn 07:04 07:40 97 % 23:17 all night
Tue, 11-Feb 17:20 17:56 dusk dawn 07:02 07:38 100 % 00:07 all night
Wed, 12-Feb 17:21 17:58 dusk dawn 07:00 07:36 100 % 00:53 all night
Thu, 13-Feb 17:23 17:59 18:32 dawn 06:58 07:34 98 % 01:36 before dawn
Fri, 14-Feb 17:25 18:01 19:47 dawn 06:56 07:32 94 % 02:17 before dawn
Sat, 15-Feb 17:27 18:03 21:00 dawn 06:54 07:30 89 % 02:56 before dawn
Sun, 16-Feb 17:29 18:05 22:13 dawn 06:52 07:28 83 % 03:36 before dawn
Mon, 17-Feb 17:31 18:07 23:26 dawn 06:50 07:26 75 % 04:16
Tue, 18-Feb 17:33 18:09 00:41 dawn 06:48 07:24 66 % 04:59
Wed, 19-Feb 17:35 18:10 01:57 dawn 06:46 07:21 57 % 05:45
Thu, 20-Feb 17:37 18:12 03:13 dawn 06:44 07:19 48 % 06:35
Fri, 21-Feb 17:39 18:14 04:24 dawn 06:42 07:17 38 % 07:28
Sat, 22-Feb 17:41 18:16 05:23 dawn 06:40 07:15 28 % 08:23
Sun, 23-Feb 17:43 18:18 06:07 dawn 06:38 07:13 20 % 09:20
Mon, 24-Feb 17:45 18:19 06:36 07:11 12 % 10:17
Tue, 25-Feb 17:46 18:21 06:34 07:08 6 % 11:12
Wed, 26-Feb 17:48 18:23 06:31 07:06 2 %
Thu, 27-Feb 17:50 18:25 06:29 07:04 0 % 12:04
Fri, 28-Feb 17:52 18:27 dusk 18:43 06:27 07:02 1 % 12:55
Sat, 01-Mar 17:54 18:29 dusk 20:14 06:25 06:59 6 % 13:45
Sun, 02-Mar 17:56 18:30 dusk 21:47 06:23 06:57 12 % 14:35
Mon, 03-Mar 17:58 18:32 dusk 23:21 06:20 06:55 21 % 15:27
Tue, 04-Mar 18:00 18:34 dusk 00:55 06:18 06:53 31 % 16:22
Wed, 05-Mar 18:01 18:36 dusk 02:26 06:16 06:50 42 % 17:19
Thu, 06-Mar 18:03 18:38 dusk 03:44 06:14 06:48 54 % 18:19
Fri, 07-Mar 18:05 18:40 dusk 04:44 06:11 06:46 64 % 19:19
Sat, 08-Mar 18:07 18:41 dusk 05:24 06:09 06:43 74 % 20:18
Sun, 09-Mar 18:09 18:43 dusk 05:50 06:07 06:41 83 % 21:13 after dusk
Mon, 10-Mar 18:11 18:45 dusk dawn 06:04 06:39 90 % 22:03 all night
Tue, 11-Mar 18:12 18:47 dusk dawn 06:02 06:36 95 % 22:50 all night
Wed, 12-Mar 18:14 18:49 dusk dawn 06:00 06:34 98 % 23:33 all night
Thu, 13-Mar 18:16 18:50 dusk dawn 05:57 06:31 100 % 00:14 all night
Fri, 14-Mar 18:18 18:52 dusk dawn 05:55 06:29 100 % 00:54 all night
Sat, 15-Mar 18:20 18:54 19:58 dawn 05:52 06:27 97 % 01:33 before dawn
Sun, 16-Mar 18:22 18:56 21:11 dawn 05:50 06:24 93 % 02:13 before dawn
Mon, 17-Mar 18:23 18:58 22:25 dawn 05:48 06:22 88 % 02:55 before dawn
Tue, 18-Mar 18:25 19:00 23:41 dawn 05:45 06:20 81 % 03:40 before dawn
Wed, 19-Mar 18:27 19:01 00:57 dawn 05:43 06:17 73 % 04:28
Thu, 20-Mar 18:29 19:03 02:09 dawn 05:40 06:15 64 % 05:18
Fri, 21-Mar 18:31 19:05 03:13 dawn 05:38 06:12 55 % 06:12
Sat, 22-Mar 18:32 19:07 04:02 dawn 05:36 06:10 45 % 07:07
Sun, 23-Mar 18:34 19:09 04:36 dawn 05:33 06:08 35 % 08:02
Mon, 24-Mar 18:36 19:11 05:00 dawn 05:31 06:05 25 % 08:56
Tue, 25-Mar 18:38 19:12 05:17 dawn 05:28 06:03 16 % 09:49
Wed, 26-Mar 18:39 19:14 05:26 06:01 9 % 10:40
Thu, 27-Mar 18:41 19:16 05:23 05:58 3 % 11:30
Fri, 28-Mar 18:43 19:18 05:21 05:56 0 %
Sat, 29-Mar 18:45 19:20 06:18 06:53 0 % 12:21
Sun, 30-Mar 19:47 20:22 dusk 21:48 06:16 06:51 3 % 14:13
Mon, 31-Mar 19:48 20:24 dusk 23:26 06:14 06:49 9 % 15:09
Tue, 01-Apr 19:50 20:25 dusk 01:03 06:11 06:46 17 % 16:07
Wed, 02-Apr 19:52 20:27 dusk 02:30 06:09 06:44 27 % 17:09
Thu, 03-Apr 19:54 20:29 dusk 03:38 06:06 06:42 38 % 18:11
Fri, 04-Apr 19:56 20:31 dusk 04:25 06:04 06:39 49 % 19:12
Sat, 05-Apr 19:57 20:33 dusk 04:56 06:01 06:37 59 % 20:09
Sun, 06-Apr 19:59 20:35 dusk 05:15 05:59 06:35 69 % 21:01
Mon, 07-Apr 20:01 20:37 dusk 05:29 05:56 06:32 78 % 21:49 after dusk
Tue, 08-Apr 20:03 20:39 dusk 05:39 05:54 06:30 86 % 22:32 after dusk
Wed, 09-Apr 20:04 20:41 dusk 05:48 05:52 06:28 92 % 23:13 after dusk
Thu, 10-Apr 20:06 20:42 dusk dawn 05:49 06:25 96 % 23:53 all night
Fri, 11-Apr 20:08 20:44 dusk dawn 05:47 06:23 99 % 00:32 all night
Sat, 12-Apr 20:10 20:46 dusk dawn 05:44 06:21 100 % 01:12 all night
Sun, 13-Apr 20:12 20:48 21:12 dawn 05:42 06:18 99 % 01:53 before dawn
Mon, 14-Apr 20:13 20:50 22:27 dawn 05:39 06:16 97 % 02:37 before dawn
Tue, 15-Apr 20:15 20:52 23:43 dawn 05:37 06:14 92 % 03:24 before dawn
Wed, 16-Apr 20:17 20:54 00:57 dawn 05:35 06:12 87 % 04:13 before dawn
Thu, 17-Apr 20:19 20:56 02:04 dawn 05:32 06:09 79 % 05:06 before dawn
Fri, 18-Apr 20:20 20:58 02:57 dawn 05:30 06:07 71 % 05:59
Sat, 19-Apr 20:22 21:00 03:36 dawn 05:27 06:05 61 % 06:53
Sun, 20-Apr 20:24 21:02 04:03 dawn 05:25 06:03 51 % 07:46
Mon, 21-Apr 20:26 21:04 04:22 dawn 05:23 06:01 41 % 08:38
Tue, 22-Apr 20:28 21:06 04:36 dawn 05:20 05:59 30 % 09:28
Wed, 23-Apr 20:29 21:08 04:48 dawn 05:18 05:56 20 % 10:17
Thu, 24-Apr 20:31 21:10 04:58 dawn 05:16 05:54 12 % 11:06
Fri, 25-Apr 20:33 21:12 05:09 dawn 05:13 05:52 5 % 11:57
Sat, 26-Apr 20:35 21:14 05:11 05:50 1 %
Sun, 27-Apr 20:36 21:16 05:09 05:48 0 % 12:51
Mon, 28-Apr 20:38 21:18 dusk 22:25 05:07 05:46 2 % 13:49
Tue, 29-Apr 20:40 21:20 dusk 00:01 05:04 05:44 7 % 14:50
Wed, 30-Apr 20:42 21:22 dusk 01:22 05:02 05:42 14 % 15:55
Thu, 01-May 20:43 21:24 dusk 02:20 05:00 05:40 23 % 16:59
Fri, 02-May 20:45 21:26 dusk 02:57 04:58 05:38 33 % 17:59
Sat, 03-May 20:47 21:28 dusk 03:21 04:56 05:36 44 % 18:55
Sun, 04-May 20:49 21:30 dusk 03:36 04:53 05:34 54 % 19:45
Mon, 05-May 20:50 21:32 dusk 03:48 04:51 05:32 64 % 20:31
Tue, 06-May 20:52 21:34 dusk 03:57 04:49 05:31 73 % 21:13
Wed, 07-May 20:54 21:36 dusk 04:05 04:47 05:29 81 % 21:53 after dusk
Thu, 08-May 20:55 21:37 dusk 04:13 04:45 05:27 88 % 22:32 after dusk
Fri, 09-May 20:57 21:39 dusk 04:22 04:43 05:25 93 % 23:11 after dusk
Sat, 10-May 20:59 21:41 dusk 04:32 04:41 05:24 97 % 23:52 after dusk
Sun, 11-May 21:00 21:43 dusk dawn 04:39 05:22 99 % 00:35 all night
Mon, 12-May 21:02 21:45 dusk dawn 04:37 05:20 100 % 01:21 all night
Tue, 13-May 21:04 21:47 22:46 dawn 04:35 05:19 98 % 02:10 before dawn
Wed, 14-May 21:05 21:49 23:55 dawn 04:33 05:17 95 % 03:01 before dawn
Thu, 15-May 21:07 21:51 00:53 dawn 04:31 05:15 90 % 03:55 before dawn
Fri, 16-May 21:09 21:53 01:36 dawn 04:30 05:14 84 % 04:49 before dawn
Sat, 17-May 21:10 21:55 02:06 dawn 04:28 05:12 76 % 05:41 before dawn
Sun, 18-May 21:12 21:57 02:27 dawn 04:26 05:11 66 % 06:32
Mon, 19-May 21:13 21:58 02:42 dawn 04:24 05:10 56 % 07:21
Tue, 20-May 21:15 22:00 02:54 dawn 04:23 05:08 45 % 08:09
Wed, 21-May 21:16 22:02 03:05 dawn 04:21 05:07 34 % 08:56
Thu, 22-May 21:18 22:04 03:15 dawn 04:20 05:06 24 % 09:44
Fri, 23-May 21:19 22:05 03:27 dawn 04:18 05:04 14 % 10:35
Sat, 24-May 21:21 22:07 03:41 dawn 04:16 05:03 7 % 11:30
Sun, 25-May 21:22 22:09 04:15 05:02 2 %
Mon, 26-May 21:23 22:10 04:14 05:01 0 % 12:29
Tue, 27-May 21:25 22:12 dusk 22:54 04:12 05:00 1 % 13:33
Wed, 28-May 21:26 22:14 dusk 00:04 04:11 04:59 5 % 14:39
Thu, 29-May 21:27 22:15 dusk 00:52 04:10 04:58 11 % 15:43
Fri, 30-May 21:28 22:17 dusk 01:22 04:09 04:57 19 % 16:43
Sat, 31-May 21:30 22:18 dusk 01:41 04:07 04:56 28 % 17:37

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!

Snowdonia weather (Accuweather)

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