Snowdon Walk

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

Hiking weather forecast

Snowdonia hourly weather (Visual Crossing)

Sunset: 17:50. Dusk: 18:25. Dark: 19:05. Moon not visible

Updated: Fri, 28-Feb at 02:39

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%
Sat, 01 Mar 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0%
Sun, 02 Mar 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0%
Mon, 03 Mar 3% 3% 3% 3% 3% 3% 3% 0% 0% 0% 0% 0% 0% 0% 0% 0%
Tue, 04 Mar 3% 3% 3% 3% 3% 3% 3% 🌫 13% 13% 13% 13% 13% 13% 13% 13% 13%
Wed, 05 Mar 32% 3% 3% 3% 3% 3% 3% 0% 0% 0% 0% 0% 0% 0% 0% 0%
Thu, 06 Mar 0% 3% 3% 3% 3% 3% 3% 7% 7% 7% 7% 7% 7% 13% 13% 13%
Fri, 07 Mar 29% 36% 36% 36% 36% 36% 36% 26% 26% 26% 26% 26% 26% 39% 39% 39%
Sat, 08 Mar 23% 42% 42% 42% 42% 42% 🌫 42% 🌫 42% 🌫 42% 42% 42% 42% 42% 36% 36% 36%
Sun, 09 Mar 13% 13% 13% 🌫 13% 🌫 13% 🌫 13% 🌫 13% 19% 19% 19% 19% 19% 19% 10% 10% 10%
Mon, 10 Mar 10% 16% 16% 16% 16% 16% 16% 26% 26% 26% 26% 26% 26% 36% 36% 36%
Tue, 11 Mar 19% 26% 26% 26% 26% 26% 26% 48% 48% 48% 48% 48% 48% 29% 29% 29%
Wed, 12 Mar 32% 26% 26% 26% 26% 26% 26% 32% 32% 32% 32% 32% 32% 26% 26% 26%
Thu, 13 Mar 23% 26% 26% 26% 26% 26% 26% 19% 19% 19% 19% 19% 19% 19% 19% 19%
Fri, 14 Mar 🌫 16% 32% 32% 32% 32% 32% 🌫 32% 39% 39% 39% 39% 39% 39% 39% 39% 39%

Percentages are the chance of rain.

Weather data by Visual Crossing

Snowdonia hourly weather (Open Meteo)

Sunset: 17:50. Dusk: 18:25. Dark: 19:05. Moon not visible

Updated: Mon, 20-Jan at 08:37

06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21
Today 2% 4% 8% 14% 20% 28% 37% 43% 45% 45% 45% 46% 🌫 48% 🌫 49%
Tue, 21 Jan 47% 48% 49% 51% 52% 53% 53% 50% 46% 41% 37% 33% 29% 25% 21% 18%
Wed, 22 Jan 10% 7% 5% 🌫 4% 4% 6% 8% 11% 15% 18% 20% 22% 22% 21% 18% 16%
Thu, 23 Jan 33% 37% 42% 49% 59% 71% 80% 86% 89% 92% 95% 97% 94% 82% 66% 51%
Fri, 24 Jan 86% 90% 92% 92% 90% 86% 82% 79% 76% 73% 69% 65% 61% 56% 52% 49%
Sat, 25 Jan 67% 68% 68% 67% 64% 59% 55% 54% 54% 53% 51% 48% 47% 51% 57% 60%
Sun, 26 Jan 41% 41% 42% 43% 44% 45% 47% 49% 51% 53% 55% 57% 59% 60% 60% 61%
Mon, 27 Jan 71% 72% 73% 74% 75% 75% 76% 77% 77% 78% 78% 78% 78% 77% 76% 74%
Tue, 28 Jan 59% 59% 59% 59% 59% 60% 61% 62% 64% 65% 66% 67% 67% 65% 63% 60%
Wed, 29 Jan 53% 54% 54% 55% 56% 56% 57% 58% 60% 61% 62% 62% 61% 59% 55% 52%
Thu, 30 Jan 33% 32% 30% 29% 28% 27% 27% 27% 28% 29% 30% 31% 31% 30% 28% 27%
Fri, 31 Jan 31% 31% 31% 30% 30% 29% 29% 29% 29% 29% 29% 29% 29% 29% 29% 29%
Sat, 01 Feb 35% 34% 33% 31% 29% 28% 27% 27% 27% 28% 29% 30% 31% 32% 32% 33%
Sun, 02 Feb 37% 38% 38% 39% 40% 41% 41% 41% 40% 39% 38% 38% 37% 37% 36% 36%
Mon, 03 Feb 25% 25% 25% 25% 26% 27% 27% 27% 27% 30% 31% 32% 32% 31% 30% 29%
Tue, 04 Feb 26% 26% 26% 26% 26% 26% 26% 27% 27% 28% 28% 29% 29% 29% 29% 29%

Percentages are the chance of rain.

Weather data by Open-Meteo

Snowdonia hourly weather (Met Office)

Sunset: 17:50. Dusk: 18:25. Dark: 19:05. Moon not visible

Updated: Fri, 28-Feb at 01:00

06 09 12 15 18 21
Today 0% 0% 1% 2% 0% 0%
Sat, 01 Mar 4% 4% 5% 6% 9% 9%
Sun, 02 Mar 9% 6% 5% 6% 2% 5%
Mon, 03 Mar 🌫 16% 10% 9% 9% 6% 🌫 14%
Tue, 04 Mar 🌫 14% 🌫 15% 9% 8% 9% 9%
Wed, 05 Mar 13% 12% 11% 11% 4% 5%
Thu, 06 Mar 5% 4% 3% 3% 3% 5%

Percentages are the chance of rain.

Weather data by Met Office

Regional weather (Met Office)

Sunset: 17:50. Dusk: 18:25. Dark: 19:05. Moon not visible

Updated: Fri, 28-Feb at 02:38

Wales

Sunny spells by day. Chilly overnight with frost and fog.

  • Staying dry throughout the evening and overnight with prolonged clear skies
  • A few freezing fog patches may form as winds fall light
  • Turning widely frosty too by the morning
  • Minimum Temperature -2C

Friday:

  • Mist and fog clearing to leave another settled day with lengthy periods of sunshine amidst cloud bubbling up in the afternoon
  • Feeling springlike for the last day of meteorological winter
  • Maximum Temperature 10C

Outlook for Saturday to Monday:

  • Cloud increasing from the northwest on Saturday, bringing some patchy rain
  • Sunny spells on Sunday, then cloudier on Monday
  • Temperatures around average, though chilly overnight with fog and frost patches

UK Day 6-7 and week 2

  • A split in weather conditions is likely across the UK during early March
  • Northwestern areas will see some rain and stronger winds at times, as Atlantic weather systems arrive from the west
  • These spells of wet and windy weather will drift southeast to some degree, but will weaken
  • High pressure is likely to have more influence across the south of the UK, at least at first
  • Here, there should be a good deal of fine/dry weather at first with a chance of night frosts and morning fog patches, but some pleasantly mild afternoons, and feeling warm in the sunshine
  • However, towards mid-March, there is an increasing chance of unsettled conditions becoming more widely dominant across the UK with more in the way of rain at times, even in the south

UK Week 3 and 4

  • The middle of March is most-likely going to be quite changeable and unsettled with spells of rain and strong winds in most areas, especially the north and west, with rainfall amounts probably above average
  • Some drier interludes are also likely between time though, especially in the south and east, and temperatures on the whole will be a little above average
  • Later in the month, there are signs that high pressure to the south could start to dominate once again, with extended dry and bright conditions perhaps developing more widely

Weather data by Met Office

Snowdonia mountain weather forecast (Met Office)

Updated: Thu, 27-Feb at 17:01

Specialist mountain forecast: MWIS

Evening
Thu, 27-Feb

Dry and largely clear this evening with mainly light northwesterly winds.

Tomorow
Fri, 28-Feb

Dry with long sunny spells.

Dry and clear through the early hours with some patchy fog possible at low levels. Any patchy mist and fog soon clearing then a bright day with some long spells of sunshine. Remaining dry through the evening with clear spells

Low risk Severe Chill Effect Poor Visibility
Low risk Severe Chill Effect Poor Visibility
Chance of Cloud free tops Close to 100% at first, falling to around 75% by midday
Ground conditions Please see - https://yrwyddfa.live/
Visibility Patchy, thin low cloud possible over foothills at first as any patchy mist and fog lifts, otherwise occasional cloud developing above about 600-750m towards midday. Away from cloud visibility generally excellent with good panoramic views of mountains, but a kilometre or less in early low level mist and fog patches.
Confidence High for a fine day Friday and then becoming rather more unsettled, although some doubts over the timing of the arrival and clearance of a weakening front on Saturday evening/Sunday morning.
View A largely fine late winters day.

Conditions on the tops at 900m

Time Weather Rain Temp Wind Freezing
00:00 Clear night 00% -1 8 800m
03:00 Clear night 00% -2 6 700m
06:00 Partly cloudy (night) 00% -2 5 700m
09:00 Sunny 00% -0 4 800m
12:00 Sunny intervals 00% 1 6 900m
15:00 Sunny intervals 00% 1 8 900m
18:00 Partly cloudy (night) 00% -0 8 800m
21:00 Clear night 00% -1 9 700m
Sat, 01-Mar

Dry and clear overnight, risk of low level mist and freezing fog developing. Any mist and fog soon clearing otherwise a bright start to the morning with some sunny spells but cloud increasing, bringing the risk of a little patchy rain, with summit sleet and snow, for the afternoon. Remaining cloudy through the evening with risk of further patchy rain and summit wintriness.

Ice 700m rising to 900m
Visibility Patchy, thin low cloud possible over foothills at first as any patchy mist and fog lifts, otherwise little cloud below the summits through the morning, becoming periods or persistent cloud above 600-750m by mid-afternoon and lowering to 450m at times. Away from cloud visibility very good falling several kilometres in rain and drizzle, and perhaps a kilometre in any summit wintriness and early low level patchy mist and freezing fog.
Wind Southerly or southwesterly 15-20mph, veering more westerly 10-15mph in the late afternoon.
Temp (tops) Around minus 1 Celsius rising to plus 3 Celsius by midday at 800m
Sun, 02-Mar

A cloudy start but becoming brighter with sunny spells developing. Freshening southwesterly winds. Freezing level falling to 600m for a time, rising above summits in evening.

Mon, 03-Mar

Mostly cloudy with outbreaks of mainly light rain and drizzle. Strong westerly or southwesterly winds. Freezing level above summits.

Tue, 04-Mar

Another cloudy day with further outbreaks of rain and drizzle, perhaps heavy at times. Strong southwesterly winds with summit gales. Freezing level above summits.

Weather data by Met Office

Snowdonia Air Quality (Pollen and UV)

Updated: Fri, 28-Feb at 05:37

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   alder air q   alder air q   alder air q UV alder air q UV alder air q UV alder air q UV alder air q UV alder air q UV   air q UV   air q UV   air q UV alder air q UV alder air q   alder air q     air q     air q     air q     air q    
Sat, 01 Mar 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 alder air q UV alder air q UV alder air q UV alder air q UV alder air q UV alder air q   alder air q     air q     air q     air q   alder air q   alder
Sun, 02 Mar air q     air q     air q     air q     air q   alder 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   alder air q   alder air q   alder air q     air q     air q    
Mon, 03 Mar 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 UV   air q UV   air q UV   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: Mon, 20-Jan at 08:37

06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21
Today 3km 3km 4km 5km 50km 50km 4km 1km 2km 2km 2km 2km 1km 1km
Tue, 21 Jan 0km 0km 0km 0km 0km 0km 0km 0km 0km 2km 2km 2km 2km 2km 2km 2km
Wed, 22 Jan 2km 2km 2km 1km 5km 50km 12km 50km 50km 9km 3km 5km 3km 1km 1km 3km
Thu, 23 Jan 2km 2km 3km 3km 2km 1km 0km 0km 0km 1km 1km 1km 1km 8km 14km 21km
Fri, 24 Jan 8km 17km 27km 36km 36km 36km 36km 40km 44km 49km 47km 46km 45km 46km 46km 47km

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
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
Sun, 01-Jun 02:52 04:07 04:56 13:13 21:31 22:19 23:36 18:12
Mon, 02-Jun 02:50 04:06 04:55 13:13 21:32 22:21 23:38 18:14
Tue, 03-Jun 02:48 04:05 04:54 13:13 21:33 22:22 23:41 18:16
Wed, 04-Jun 02:46 04:04 04:54 13:13 21:34 22:23 23:43 18:19
Thu, 05-Jun 02:44 04:03 04:53 13:14 21:35 22:25 23:45 18:21
Fri, 06-Jun 02:42 04:03 04:52 13:14 21:36 22:26 23:47 18:23
Sat, 07-Jun 02:41 04:02 04:52 13:14 21:37 22:27 23:49 18:25
Sun, 08-Jun 02:39 04:01 04:51 13:14 21:38 22:28 23:51 18:26
Mon, 09-Jun 02:38 04:01 04:51 13:14 21:39 22:29 23:52 18:28
Tue, 10-Jun 02:36 04:00 04:50 13:15 21:39 22:30 23:54 18:29
Wed, 11-Jun 02:35 03:59 04:50 13:15 21:40 22:31 23:56 18:31
Thu, 12-Jun 02:34 03:59 04:50 13:15 21:41 22:32 23:57 18:32
Fri, 13-Jun 02:33 03:59 04:49 13:15 21:41 22:32 23:58 18:33
Sat, 14-Jun 02:32 03:58 04:49 13:15 21:42 22:33 00:00 18:34
Sun, 15-Jun 02:31 03:58 04:49 13:16 21:42 22:34 00:01 18:35
Mon, 16-Jun 02:31 03:58 04:49 13:16 21:43 22:34 00:02 18:36
Tue, 17-Jun 02:30 03:58 04:49 13:16 21:43 22:35 00:02 18:36
Wed, 18-Jun 02:30 03:58 04:49 13:16 21:44 22:35 00:03 18:37
Thu, 19-Jun 02:30 03:58 04:49 13:17 21:44 22:35 00:03 18:37
Fri, 20-Jun 02:30 03:58 04:49 13:17 21:44 22:36 00:04 18:37
Sat, 21-Jun 02:30 03:58 04:49 13:17 21:44 22:36 00:04 18:37
Sun, 22-Jun 02:30 03:58 04:50 13:17 21:45 22:36 00:04 18:37
Mon, 23-Jun 02:31 03:59 04:50 13:17 21:45 22:36 00:04 18:37
Tue, 24-Jun 02:31 03:59 04:50 13:18 21:45 22:36 00:03 18:36
Wed, 25-Jun 02:32 04:00 04:51 13:18 21:45 22:36 00:03 18:36
Thu, 26-Jun 02:33 04:00 04:51 13:18 21:45 22:36 00:02 18:35
Fri, 27-Jun 02:34 04:01 04:52 13:18 21:45 22:35 00:02 18:34
Sat, 28-Jun 02:35 04:01 04:52 13:18 21:44 22:35 00:01 18:33
Sun, 29-Jun 02:36 04:02 04:53 13:19 21:44 22:35 00:00 18:32
Mon, 30-Jun 02:38 04:03 04:54 13:19 21:44 22:34 23:59 18:31
Tue, 01-Jul 02:39 04:04 04:54 13:19 21:43 22:34 23:58 18:30
Wed, 02-Jul 02:41 04:05 04:55 13:19 21:43 22:33 23:56 18:28
Thu, 03-Jul 02:43 04:06 04:56 13:19 21:43 22:33 23:55 18:27
Fri, 04-Jul 02:44 04:07 04:57 13:20 21:42 22:32 23:53 18:25
Sat, 05-Jul 02:46 04:08 04:57 13:20 21:41 22:31 23:52 18:23
Sun, 06-Jul 02:48 04:09 04:58 13:20 21:41 22:30 23:50 18:21
Mon, 07-Jul 02:50 04:10 04:59 13:20 21:40 22:29 23:48 18:19
Tue, 08-Jul 02:52 04:11 05:00 13:20 21:39 22:28 23:46 18:17
Wed, 09-Jul 02:55 04:12 05:01 13:20 21:39 22:27 23:44 18:15
Thu, 10-Jul 02:57 04:14 05:03 13:21 21:38 22:26 23:42 18:12
Fri, 11-Jul 02:59 04:15 05:04 13:21 21:37 22:25 23:40 18:10
Sat, 12-Jul 03:01 04:17 05:05 13:21 21:36 22:24 23:38 18:07
Sun, 13-Jul 03:04 04:18 05:06 13:21 21:35 22:23 23:36 18:04
Mon, 14-Jul 03:06 04:19 05:07 13:21 21:34 22:21 23:34 18:02
Tue, 15-Jul 03:09 04:21 05:08 13:21 21:33 22:20 23:32 17:59
Wed, 16-Jul 03:11 04:23 05:10 13:21 21:32 22:19 23:29 17:56
Thu, 17-Jul 03:14 04:24 05:11 13:21 21:31 22:17 23:27 17:53
Fri, 18-Jul 03:16 04:26 05:12 13:21 21:29 22:16 23:25 17:50
Sat, 19-Jul 03:19 04:27 05:14 13:21 21:28 22:14 23:22 17:46
Sun, 20-Jul 03:21 04:29 05:15 13:21 21:27 22:13 23:20 17:43
Mon, 21-Jul 03:24 04:31 05:17 13:22 21:26 22:11 23:17 17:40
Tue, 22-Jul 03:26 04:33 05:18 13:22 21:24 22:09 23:15 17:36
Wed, 23-Jul 03:29 04:34 05:20 13:22 21:23 22:08 23:12 17:33
Thu, 24-Jul 03:31 04:36 05:21 13:22 21:21 22:06 23:10 17:29
Fri, 25-Jul 03:34 04:38 05:22 13:22 21:20 22:04 23:07 17:26
Sat, 26-Jul 03:37 04:40 05:24 13:22 21:18 22:02 23:05 17:22
Sun, 27-Jul 03:39 04:41 05:26 13:22 21:17 22:00 23:02 17:19
Mon, 28-Jul 03:42 04:43 05:27 13:22 21:15 21:59 22:59 17:15
Tue, 29-Jul 03:44 04:45 05:29 13:22 21:13 21:57 22:57 17:11
Wed, 30-Jul 03:47 04:47 05:30 13:22 21:12 21:55 22:54 17:07
Thu, 31-Jul 03:50 04:49 05:32 13:21 21:10 21:53 22:51 17:03
Fri, 01-Aug 03:52 04:51 05:33 13:21 21:08 21:51 22:49 16:59
Sat, 02-Aug 03:55 04:53 05:35 13:21 21:07 21:49 22:46 16:56
Sun, 03-Aug 03:57 04:55 05:37 13:21 21:05 21:47 22:43 16:52
Mon, 04-Aug 04:00 04:56 05:38 13:21 21:03 21:45 22:41 16:48
Tue, 05-Aug 04:02 04:58 05:40 13:21 21:01 21:42 22:38 16:44
Wed, 06-Aug 04:05 05:00 05:42 13:21 20:59 21:40 22:35 16:40
Thu, 07-Aug 04:07 05:02 05:43 13:21 20:57 21:38 22:32 16:35
Fri, 08-Aug 04:10 05:04 05:45 13:21 20:55 21:36 22:30 16:31
Sat, 09-Aug 04:12 05:06 05:47 13:21 20:53 21:34 22:27 16:27
Sun, 10-Aug 04:15 05:08 05:48 13:20 20:51 21:32 22:24 16:23
Mon, 11-Aug 04:17 05:10 05:50 13:20 20:49 21:29 22:22 16:19
Tue, 12-Aug 04:19 05:12 05:52 13:20 20:47 21:27 22:19 16:15
Wed, 13-Aug 04:22 05:14 05:53 13:20 20:45 21:25 22:16 16:11
Thu, 14-Aug 04:24 05:16 05:55 13:20 20:43 21:22 22:13 16:06
Fri, 15-Aug 04:27 05:17 05:57 13:20 20:41 21:20 22:10 16:02
Sat, 16-Aug 04:29 05:19 05:58 13:19 20:39 21:18 22:08 15:58
Sun, 17-Aug 04:31 05:21 06:00 13:19 20:37 21:16 22:05 15:54
Mon, 18-Aug 04:34 05:23 06:02 13:19 20:35 21:13 22:02 15:49
Tue, 19-Aug 04:36 05:25 06:03 13:19 20:33 21:11 21:59 15:45
Wed, 20-Aug 04:38 05:27 06:05 13:18 20:31 21:08 21:57 15:41
Thu, 21-Aug 04:41 05:29 06:07 13:18 20:28 21:06 21:54 15:37
Fri, 22-Aug 04:43 05:31 06:09 13:18 20:26 21:04 21:51 15:32
Sat, 23-Aug 04:45 05:33 06:10 13:18 20:24 21:01 21:48 15:28
Sun, 24-Aug 04:47 05:35 06:12 13:17 20:22 20:59 21:46 15:24
Mon, 25-Aug 04:50 05:36 06:14 13:17 20:19 20:56 21:43 15:20

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.

Snowdonia moonlight

Moonlight chart for walking at night.

Night of Sunset Dusk Moon Visible Dawn Sunrise Phase % Full Max. Ht. Night Walk
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
Sun, 01-Jun 21:31 22:19 dusk 01:55 04:06 04:55 38 % 18:26
Mon, 02-Jun 21:32 22:21 dusk 02:05 04:05 04:54 48 % 19:10
Tue, 03-Jun 21:33 22:22 dusk 02:14 04:04 04:54 58 % 19:51
Wed, 04-Jun 21:34 22:23 dusk 02:22 04:03 04:53 67 % 20:31
Thu, 05-Jun 21:35 22:25 dusk 02:30 04:03 04:52 76 % 21:10 after dusk
Fri, 06-Jun 21:36 22:26 dusk 02:40 04:02 04:52 83 % 21:50 after dusk
Sat, 07-Jun 21:37 22:27 dusk 02:52 04:01 04:51 90 % 22:32 after dusk
Sun, 08-Jun 21:38 22:28 dusk 03:08 04:01 04:51 95 % 23:17 after dusk
Mon, 09-Jun 21:39 22:29 dusk 03:31 04:00 04:50 98 % 00:05 after dusk
Tue, 10-Jun 21:39 22:30 dusk dawn 03:59 04:50 100 % 00:57 all night
Wed, 11-Jun 21:40 22:31 22:47 dawn 03:59 04:50 99 % 01:50 before dawn
Thu, 12-Jun 21:41 22:32 23:35 dawn 03:59 04:49 97 % 02:44 before dawn
Fri, 13-Jun 21:41 22:32 00:09 dawn 03:58 04:49 93 % 03:38 before dawn
Sat, 14-Jun 21:42 22:33 00:32 dawn 03:58 04:49 87 % 04:29 before dawn
Sun, 15-Jun 21:42 22:34 00:49 dawn 03:58 04:49 79 % 05:19 before dawn
Mon, 16-Jun 21:43 22:34 01:02 dawn 03:58 04:49 70 % 06:06
Tue, 17-Jun 21:43 22:35 01:12 dawn 03:58 04:49 60 % 06:52
Wed, 18-Jun 21:44 22:35 01:22 dawn 03:58 04:49 48 % 07:38
Thu, 19-Jun 21:44 22:35 01:33 dawn 03:58 04:49 37 % 08:27
Fri, 20-Jun 21:44 22:36 01:45 dawn 03:58 04:49 26 % 09:18
Sat, 21-Jun 21:44 22:36 02:02 dawn 03:58 04:50 17 % 10:13
Sun, 22-Jun 21:45 22:36 02:25 dawn 03:59 04:50 9 % 11:14
Mon, 23-Jun 21:45 22:36 03:59 04:50 3 %
Tue, 24-Jun 21:45 22:36 03:57 dawn 04:00 04:51 1 % 12:18
Wed, 25-Jun 21:45 22:36 dusk 22:42 04:00 04:51 1 % 13:23
Thu, 26-Jun 21:45 22:36 dusk 23:19 04:01 04:52 3 % 14:26
Fri, 27-Jun 21:45 22:35 dusk 23:43 04:01 04:52 8 % 15:24
Sat, 28-Jun 21:44 22:35 dusk 00:00 04:02 04:53 15 % 16:16
Sun, 29-Jun 21:44 22:35 dusk 00:11 04:03 04:54 23 % 17:03
Mon, 30-Jun 21:44 22:34 dusk 00:21 04:04 04:54 32 % 17:46
Tue, 01-Jul 21:43 22:34 dusk 00:29 04:05 04:55 42 % 18:27
Wed, 02-Jul 21:43 22:33 dusk 00:38 04:06 04:56 52 % 19:07
Thu, 03-Jul 21:43 22:33 dusk 00:47 04:07 04:57 61 % 19:47
Fri, 04-Jul 21:42 22:32 dusk 00:58 04:08 04:57 70 % 20:28
Sat, 05-Jul 21:41 22:31 dusk 01:12 04:09 04:58 78 % 21:12 after dusk
Sun, 06-Jul 21:41 22:30 dusk 01:32 04:10 04:59 85 % 21:59 after dusk
Mon, 07-Jul 21:40 22:29 dusk 02:02 04:11 05:00 92 % 22:49 after dusk
Tue, 08-Jul 21:39 22:28 dusk 02:45 04:12 05:01 96 % 23:43 after dusk
Wed, 09-Jul 21:39 22:27 dusk 03:45 04:14 05:03 99 % 00:37 after dusk
Thu, 10-Jul 21:38 22:26 dusk dawn 04:15 05:04 100 % 01:32 all night
Fri, 11-Jul 21:37 22:25 22:37 dawn 04:17 05:05 99 % 02:25 before dawn
Sat, 12-Jul 21:36 22:24 22:55 dawn 04:18 05:06 95 % 03:16 before dawn
Sun, 13-Jul 21:35 22:23 23:09 dawn 04:19 05:07 90 % 04:04 before dawn
Mon, 14-Jul 21:34 22:21 23:20 dawn 04:21 05:08 82 % 04:51 before dawn
Tue, 15-Jul 21:33 22:20 23:31 dawn 04:23 05:10 73 % 05:37
Wed, 16-Jul 21:32 22:19 23:41 dawn 04:24 05:11 62 % 06:24
Thu, 17-Jul 21:31 22:17 23:52 dawn 04:26 05:12 51 % 07:13
Fri, 18-Jul 21:29 22:16 00:06 dawn 04:27 05:14 39 % 08:05
Sat, 19-Jul 21:28 22:14 00:26 dawn 04:29 05:15 29 % 09:03
Sun, 20-Jul 21:27 22:13 00:56 dawn 04:31 05:17 19 % 10:04
Mon, 21-Jul 21:26 22:11 01:42 dawn 04:33 05:18 11 % 11:07
Tue, 22-Jul 21:24 22:09 04:34 05:20 5 %
Wed, 23-Jul 21:23 22:08 04:11 dawn 04:36 05:21 1 % 12:10
Thu, 24-Jul 21:21 22:06 04:38 05:22 0 % 13:09
Fri, 25-Jul 21:20 22:04 04:40 05:24 2 % 14:04
Sat, 26-Jul 21:18 22:02 dusk 22:17 04:41 05:26 5 % 14:53
Sun, 27-Jul 21:17 22:00 dusk 22:28 04:43 05:27 11 % 15:39
Mon, 28-Jul 21:15 21:59 dusk 22:37 04:45 05:29 18 % 16:21
Tue, 29-Jul 21:13 21:57 dusk 22:45 04:47 05:30 26 % 17:02
Wed, 30-Jul 21:12 21:55 dusk 22:54 04:49 05:32 35 % 17:42
Thu, 31-Jul 21:10 21:53 dusk 23:04 04:51 05:33 45 % 18:23
Fri, 01-Aug 21:08 21:51 dusk 23:16 04:53 05:35 54 % 19:06
Sat, 02-Aug 21:07 21:49 dusk 23:34 04:55 05:37 64 % 19:52
Sun, 03-Aug 21:05 21:47 dusk 23:59 04:56 05:38 72 % 20:41
Mon, 04-Aug 21:03 21:45 dusk 00:36 04:58 05:40 81 % 21:33 after dusk
Tue, 05-Aug 21:01 21:42 dusk 01:29 05:00 05:42 88 % 22:27 after dusk
Wed, 06-Aug 20:59 21:40 dusk 02:39 05:02 05:43 94 % 23:22 after dusk
Thu, 07-Aug 20:57 21:38 dusk 04:01 05:04 05:45 98 % 00:16 after dusk
Fri, 08-Aug 20:55 21:36 dusk dawn 05:06 05:47 100 % 01:08 all night
Sat, 09-Aug 20:53 21:34 dusk dawn 05:08 05:48 99 % 01:58 all night
Sun, 10-Aug 20:51 21:32 dusk dawn 05:10 05:50 97 % 02:46 all night
Mon, 11-Aug 20:49 21:29 21:39 dawn 05:12 05:52 92 % 03:34 before dawn
Tue, 12-Aug 20:47 21:27 21:49 dawn 05:14 05:53 84 % 04:21 before dawn
Wed, 13-Aug 20:45 21:25 22:00 dawn 05:16 05:55 75 % 05:10 before dawn
Thu, 14-Aug 20:43 21:22 22:13 dawn 05:17 05:57 64 % 06:02
Fri, 15-Aug 20:41 21:20 22:31 dawn 05:19 05:58 53 % 06:57
Sat, 16-Aug 20:39 21:18 22:57 dawn 05:21 06:00 42 % 07:56
Sun, 17-Aug 20:37 21:16 23:36 dawn 05:23 06:02 31 % 08:58
Mon, 18-Aug 20:35 21:13 00:34 dawn 05:25 06:03 21 % 10:00
Tue, 19-Aug 20:33 21:11 01:51 dawn 05:27 06:05 12 % 10:59
Wed, 20-Aug 20:31 21:08 03:16 dawn 05:29 06:07 6 % 11:55
Thu, 21-Aug 20:28 21:06 05:31 06:09 2 %
Fri, 22-Aug 20:26 21:04 05:33 06:10 0 % 12:45
Sat, 23-Aug 20:24 21:01 05:35 06:12 1 % 13:32
Sun, 24-Aug 20:22 20:59 05:36 06:14 3 % 14:15
Mon, 25-Aug 20:19 20:56 05:38 06:15 7 % 14:57

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!

Snowdonia weather (Accuweather)

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