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Fforest Fawr traverse : Craig Y Nos to Llwyn Y Celyn Walk

Remote mountain traverse: limestone scenery, Fan Gyhirych, a glacial escarpment, great views all around. Bus travel.

Brecon Beacons Tough

Hiking weather forecast

Brecon Beacons hourly weather (Visual Crossing)

Sunset: 19:51. Dusk: 20:25. Dark: 21:07. Moon 38% (dusk to 03:28)

Updated: Thu, 03-Apr at 17:39

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% 58% 58% 55% 55%
Fri, 04 Apr 7% 7% 13% 13% 13% 13% 13% 13% 13% 13% 13% 13% 13% 13% 0% 0%
Sat, 05 Apr 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0%
Sun, 06 Apr 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0%
Mon, 07 Apr 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0%
Tue, 08 Apr 0% 0% 0% 0% 0% 0% 0% 0% 3% 3% 3% 3% 3% 3% 0% 0%
Wed, 09 Apr 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0%
Thu, 10 Apr 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0%
Fri, 11 Apr 0% 0% 7% 7% 7% 7% 7% 7% 7% 7% 7% 7% 7% 7% 0% 0%
Sat, 12 Apr 0% 0% 0% 0% 0% 0% 0% 0% 23% 23% 23% 23% 23% 23% 3% 3%
Sun, 13 Apr 7% 7% 10% 10% 10% 10% 10% 10% 23% 23% 23% 23% 23% 23% 0% 0%
Mon, 14 Apr 7% 7% 23% 23% 23% 23% 23% 23% 29% 29% 29% 29% 29% 29% 23% 23%
Tue, 15 Apr 16% 16% 23% 23% 23% 23% 23% 23% 48% 48% 48% 48% 48% 48% 16% 16%
Wed, 16 Apr 26% 26% 16% 16% 16% 16% 16% 16% 36% 36% 36% 36% 36% 36% 19% 19%
Thu, 17 Apr 26% 26% 26% 26% 26% 26% 26% 26% 42% 42% 42% 42% 42% 42% 23% 23%

Percentages are the chance of rain.

Weather data by Visual Crossing

Brecon Beacons hourly weather (Open Meteo)

Sunset: 19:51. Dusk: 20:25. Dark: 21:07. Moon 38% (dusk to 03:28)

Updated: Thu, 03-Apr at 17:37

06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21
Today 3% 4% 10% 26% 46%
Fri, 04 Apr 17% 24% 24% 20% 16% 11% 4% 0% 0% 0% 0% 0% 0% 0% 0% 0%
Sat, 05 Apr 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0%
Sun, 06 Apr 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0%
Mon, 07 Apr 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0%
Tue, 08 Apr 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0%
Wed, 09 Apr 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0%
Thu, 10 Apr 0% 0% 0% 0% 0% 0% 0% 0% 0% 1% 1% 1% 2% 2% 2% 2%
Fri, 11 Apr 0% 0% 1% 2% 4% 5% 7% 8% 8% 8% 8% 7% 7% 6% 6% 6%
Sat, 12 Apr 6% 6% 7% 7% 8% 9% 9% 10% 11% 11% 12% 13% 14% 14% 14% 13%
Sun, 13 Apr 12% 14% 18% 23% 29% 35% 40% 45% 49% 52% 54% 56% 57% 57% 54% 50%
Mon, 14 Apr 33% 35% 38% 42% 46% 50% 53% 55% 55% 54% 52% 50% 48% 45% 42% 39%
Tue, 15 Apr 33% 35% 39% 44% 48% 52% 56% 59% 60% 60% 59% 58% 55% 53% 50% 47%
Wed, 16 Apr 36% 37% 38% 40% 41% 42% 44% 45% 46% 48% 49% 50% 50% 49% 47% 45%
Thu, 17 Apr 24% 24% 25% 26% 28% 30% 32% 35% 38% 42% 45% 48% 50% 51% 49% 44%
Fri, 18 Apr 15% 16% 18% 21% 24% 27% 30% 32% 32% 32% 31% 30% 28% 26% 24% 22%

Percentages are the chance of rain.

Weather data by Open-Meteo

Brecon Beacons hourly weather (Met Office)

Sunset: 19:51. Dusk: 20:25. Dark: 21:07. Moon 38% (dusk to 03:28)

Updated: Thu, 03-Apr at 17:00

06 09 12 15 18 21
Today 10% 20%
Fri, 04 Apr 10% 5% 1% 0% 0% 0%
Sat, 05 Apr 1% 0% 0% 0% 0% 0%
Sun, 06 Apr 0% 0% 0% 0% 0% 0%
Mon, 07 Apr 0% 0% 0% 0% 0% 1%
Tue, 08 Apr 1% 1% 0% 1% 1% 0%
Wed, 09 Apr 1% 1% 1% 1% 0% 1%
Thu, 10 Apr 🌫 12% 12% 1% 1%

Percentages are the chance of rain.

Weather data by Met Office

Regional weather (Met Office)

Sunset: 19:51. Dusk: 20:25. Dark: 21:07. Moon 38% (dusk to 03:28)

Updated: Thu, 03-Apr at 17:38

Wales

Some showers this evening. Warm with sunshine on Friday.

  • A chance of further showers in the south this evening, these moving northwards overnight, but many places remaining dry
  • Patchy low cloud developing in places
  • A milder night than of late
  • Minimum Temperature 7C

Friday:

  • Any showers clearing to leave sunny spells
  • Increasingly sunny by the afternoon
  • Temperatures above average and feeling warm albeit cooler on coasts exposed to the easterly breeze
  • Maximum Temperature 23C

Outlook for Saturday to Monday:

  • Dry and mainly sunny over the weekend and into next week too
  • Temperatures generally lower than on Friday with chilly nights but feeling warm in the sunshine
  • Breezy at times

UK Day 6-7 and week 2

  • High pressure should prevail for most of the outlook period, maintaining largely settled conditions for much of the time
  • This should result in lengthy spells of dry and bright weather
  • It will be breezy at times, especially in the southwest at first
  • Daytime temperatures will depend on the wind direction and cloud amounts, but most places will be warm for most of the period, and very warm days most likely will be further inland
  • Overnight frosts are possible on clear nights where winds fall light
  • There is also the chance of some areas of low cloud or fog, notably around the east coast
  • Towards the middle of April, the weather may turn more unsettled as rain or showers try to push in from the west

UK Week 3 and 4

  • An unsettled period is likely around mid April, with interludes of rain or showers at times
  • Despite being unsettled, there will be fair conditions between weather systems
  • A return to high pressure is favoured later in the month, bringing mainly dry and fine weather
  • Temperatures are likely to be around average at first, before climbing to above average later in the more settled weather
  • This means some warm or very warm days, especially further inland where winds stay light on fair days
  • This could also mean there might still be some chilly nights any clear skies

Weather data by Met Office

Brecon Beacons mountain weather forecast (Met Office)

Updated: Thu, 03-Apr at 04:21

Specialist mountain forecast: MWIS

Today
Thu, 03-Apr

Mainly fine and sunny, but windy on the summits. Cloudier, with chance of isolated showers during the evening.

Another fine dry, and sunny day, once any early low cloud across eastern hills clears. Feeling warm at lower levels, especially in the sunshine, but much colder in the strong winds over the tops. Cloud likely increasing from the south during the late afternoon and evening, but mostly staying above the summits. The odd heavy shower cannot be ruled out after dusk, with a low risk of this being thundery.

Low risk Thunderstorms
Medium risk Strong Sunlight
High risk Gales
Chance of Cloud free tops 80% at first, but soon improving to 100%. Falling to 90% in the evening.
Ground conditions Please see - https://yrwyddfa.live/
Visibility The odd patch of cloud possible in the east above 500-600m at first, but soon clearing. Otherwise summits largely free of cloud, although the odd patch could form above 900m with any evening showers. Visibility very poor in any cloud, and poor in any rain, but otherwise good or very good for much of the day.
Confidence High confidence for the mostly fine, but windy period. Although only Moderate on strength of the strongest winds. Also Moderate for the extent of any low cloud, mist or fog patches around dawn. Low confidence for the shower potential on Thursday evening.
View Winds could be deceptively strong at height, with a risk of sudden strong gusts on lee slopes. Otherwise a fine day, with warm sunshine, but feeling cold in the wind. Despite the wind chill, appropriate sun protection will be needed.

Conditions on the tops at 900m

Time Weather Rain Temp Wind Freezing
06:00 Sunny intervals 00% 4 39 1500m
09:00 Sunny 00% 4 43 1600m
12:00 Sunny 00% 7 36 1700m
15:00 Sunny <05% 9 35 1800m
18:00 Sunny intervals <05% 9 36 1900m
21:00 Partly cloudy (night) 10% 6 37 2300m
Fri, 04-Apr

A few potentially heavy showers will remain possible during the early hours of Friday, before clearing around dawn. Cloud, largely above the summits, will also clear leaving another fine but windy day. Feeling warm in the sunshine, but with an increasing wind chill.

Ice Above summits.
Visibility The odd patch of cloud above 600m with any rain during the early hours. All hills then clear for much of the day.
Wind Easterly 30-40mph with gusts 50-60mph. Isolated gusts potentially to 70mph during the evening.
Temp (tops) Plus 8 Celsius at 800m
Sat, 05-Apr

Cold start. However any early morning valley mist and fog soon clearing to leave another fine day with warm sunshine. Gale force easterly winds, perhaps storm force on the higher summits and cooler than Friday, so significant wind chill is likely. Freezing level lowering near to summits.

Sun, 06-Apr

A similar day to Saturday. Starting cold with any early mist and fog soon clearing to leave another fine day. Gale force easterly winds easing somewhat but still potentially giving significant wind chill. Freezing level just above summits.

Mon, 07-Apr

Perhaps some mist or fog patches early on Monday, but then another fine and sunny day. Winds falling light. Freezing level rising above summits.

Weather data by Met Office

Brecon Beacons Air Quality (Pollen and UV)

Updated: Thu, 03-Apr at 17:37

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 alder birch   air q UV alder birch   air q   alder birch   air q   alder birch   air q   alder birch   air q   alder birch   air q   alder birch  
Fri, 04 Apr air q   alder birch   air q   alder birch   air q   alder birch   air q   alder birch   air q   alder birch   air q   alder birch   air q   alder birch   air q   alder birch   air q UV alder birch   air q UV alder birch   air q UV alder birch   air q UV alder birch grass air q UV alder birch grass air q UV alder birch grass air q UV alder birch grass air q UV alder birch   air q UV alder birch   air q UV alder birch   air q UV alder birch   air q UV alder birch   air q   alder birch   air q   alder birch   air q   alder birch   air q   alder birch  
Sat, 05 Apr air q   alder birch   air q   alder birch   air q   alder birch   air q   alder birch   air q   alder birch   air q   alder birch   air q   alder birch   air q UV alder birch   air q UV   birch   air q UV alder birch   air q UV alder birch   air q UV alder birch   air q UV alder birch   air q UV alder birch   air q UV alder birch   air q UV alder birch   air q UV alder birch   air q UV alder birch   air q UV alder birch   air q UV alder birch   air q   alder birch   air q   alder birch   air q   alder birch   air q   alder birch  
Sun, 06 Apr air q   alder birch   air q   alder birch   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 UV       air q UV       air q UV       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

Brecon Beacons Visibility

Updated: Thu, 03-Apr at 17:37

06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21
Today 50km 50km 20km 22km 2km
Fri, 04 Apr 1km 1km 1km 5km 4km 4km 13km 15km 50km 21km 50km 28km 50km 23km 22km 26km
Sat, 05 Apr 50km 50km 50km 12km 16km 19km 50km 50km 25km 27km 30km 31km 28km 23km 19km 18km
Sun, 06 Apr 51km 49km 53km 60km 71km 72km 77km 78km 76km 76km 76km 76km 76km 74km 75km 75km
Mon, 07 Apr 72km 70km 72km 74km 76km 77km 77km 78km 78km 78km 77km 77km 76km 76km 75km 74km

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

Brecon Beacons daylight

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

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.

Brecon Beacons moonlight

Moonlight chart for walking at night.

Night of Sunset Dusk Moon Visible Dawn Sunrise Phase % Full Max. Ht. Night Walk
Thu, 03-Apr 19:51 20:25 dusk 03:28 06:07 06:41 38 % 18:09
Fri, 04-Apr 19:52 20:27 dusk 04:16 06:04 06:39 49 % 19:10
Sat, 05-Apr 19:54 20:29 dusk 04:47 06:02 06:36 59 % 20:07
Sun, 06-Apr 19:56 20:31 dusk 05:09 05:59 06:34 69 % 20:59
Mon, 07-Apr 19:58 20:32 dusk 05:24 05:57 06:32 78 % 21:47 after dusk
Tue, 08-Apr 19:59 20:34 dusk 05:36 05:55 06:30 86 % 22:30 after dusk
Wed, 09-Apr 20:01 20:36 dusk 05:45 05:52 06:28 92 % 23:12 after dusk
Thu, 10-Apr 20:03 20:38 dusk dawn 05:50 06:25 96 % 23:51 all night
Fri, 11-Apr 20:04 20:40 dusk dawn 05:48 06:23 99 % 00:30 all night
Sat, 12-Apr 20:06 20:42 dusk dawn 05:45 06:21 100 % 01:10 all night
Sun, 13-Apr 20:08 20:43 21:06 dawn 05:43 06:19 99 % 01:51 before dawn
Mon, 14-Apr 20:09 20:45 22:20 dawn 05:41 06:16 97 % 02:35 before dawn
Tue, 15-Apr 20:11 20:47 23:35 dawn 05:38 06:14 92 % 03:22 before dawn
Wed, 16-Apr 20:13 20:49 00:47 dawn 05:36 06:12 87 % 04:11 before dawn
Thu, 17-Apr 20:15 20:51 01:53 dawn 05:34 06:10 79 % 05:04 before dawn
Fri, 18-Apr 20:16 20:53 02:46 dawn 05:31 06:08 71 % 05:57
Sat, 19-Apr 20:18 20:55 03:26 dawn 05:29 06:06 61 % 06:51
Sun, 20-Apr 20:20 20:56 03:55 dawn 05:27 06:04 51 % 07:44
Mon, 21-Apr 20:21 20:58 04:16 dawn 05:25 06:02 41 % 08:36
Tue, 22-Apr 20:23 21:00 04:31 dawn 05:22 06:00 30 % 09:26
Wed, 23-Apr 20:25 21:02 04:44 dawn 05:20 05:57 20 % 10:15
Thu, 24-Apr 20:26 21:04 04:56 dawn 05:18 05:55 12 % 11:04
Fri, 25-Apr 20:28 21:06 05:09 dawn 05:16 05:53 5 % 11:55
Sat, 26-Apr 20:30 21:08 05:14 05:51 1 %
Sun, 27-Apr 20:31 21:10 05:11 05:49 0 % 12:49
Mon, 28-Apr 20:33 21:11 dusk 22:17 05:09 05:47 2 % 13:47
Tue, 29-Apr 20:35 21:13 dusk 23:51 05:07 05:46 7 % 14:49
Wed, 30-Apr 20:37 21:15 dusk 01:11 05:05 05:44 14 % 15:53
Thu, 01-May 20:38 21:17 dusk 02:09 05:03 05:42 23 % 16:57
Fri, 02-May 20:40 21:19 dusk 02:48 05:01 05:40 33 % 17:58
Sat, 03-May 20:41 21:21 dusk 03:13 04:59 05:38 44 % 18:53
Sun, 04-May 20:43 21:23 dusk 03:31 04:57 05:36 54 % 19:43
Mon, 05-May 20:45 21:25 dusk 03:44 04:55 05:34 64 % 20:29
Tue, 06-May 20:46 21:26 dusk 03:54 04:53 05:33 73 % 21:11
Wed, 07-May 20:48 21:28 dusk 04:03 04:51 05:31 81 % 21:51 after dusk
Thu, 08-May 20:50 21:30 dusk 04:12 04:49 05:29 88 % 22:30 after dusk
Fri, 09-May 20:51 21:32 dusk 04:22 04:47 05:28 93 % 23:09 after dusk
Sat, 10-May 20:53 21:34 dusk 04:33 04:45 05:26 97 % 23:50 after dusk
Sun, 11-May 20:54 21:36 dusk dawn 04:43 05:24 99 % 00:33 all night
Mon, 12-May 20:56 21:38 dusk dawn 04:41 05:23 100 % 01:19 all night
Tue, 13-May 20:58 21:39 22:37 dawn 04:39 05:21 98 % 02:08 before dawn
Wed, 14-May 20:59 21:41 23:45 dawn 04:38 05:20 95 % 03:00 before dawn
Thu, 15-May 21:01 21:43 00:42 dawn 04:36 05:18 90 % 03:53 before dawn
Fri, 16-May 21:02 21:45 01:26 dawn 04:34 05:17 84 % 04:47 before dawn
Sat, 17-May 21:04 21:46 01:58 dawn 04:33 05:15 76 % 05:40 before dawn
Sun, 18-May 21:05 21:48 02:20 dawn 04:31 05:14 66 % 06:30
Mon, 19-May 21:07 21:50 02:37 dawn 04:29 05:13 56 % 07:19
Tue, 20-May 21:08 21:52 02:50 dawn 04:28 05:11 45 % 08:07
Wed, 21-May 21:09 21:53 03:02 dawn 04:26 05:10 34 % 08:54
Thu, 22-May 21:11 21:55 03:14 dawn 04:25 05:09 24 % 09:42
Fri, 23-May 21:12 21:57 03:27 dawn 04:23 05:08 14 % 10:33
Sat, 24-May 21:14 21:58 03:43 dawn 04:22 05:06 7 % 11:28
Sun, 25-May 21:15 22:00 04:21 05:05 2 %
Mon, 26-May 21:16 22:01 04:19 05:04 0 % 12:27
Tue, 27-May 21:17 22:03 dusk 22:43 04:18 05:03 1 % 13:31
Wed, 28-May 21:19 22:04 dusk 23:54 04:17 05:02 5 % 14:37
Thu, 29-May 21:20 22:06 dusk 00:42 04:16 05:01 11 % 15:41
Fri, 30-May 21:21 22:07 dusk 01:14 04:15 05:01 19 % 16:41
Sat, 31-May 21:22 22:08 dusk 01:35 04:13 05:00 28 % 17:35
Sun, 01-Jun 21:23 22:10 dusk 01:50 04:13 04:59 38 % 18:24
Mon, 02-Jun 21:24 22:11 dusk 02:02 04:12 04:58 48 % 19:08
Tue, 03-Jun 21:25 22:12 dusk 02:11 04:11 04:58 58 % 19:49
Wed, 04-Jun 21:26 22:13 dusk 02:21 04:10 04:57 67 % 20:29
Thu, 05-Jun 21:27 22:15 dusk 02:30 04:09 04:56 76 % 21:08 after dusk
Fri, 06-Jun 21:28 22:16 dusk 02:41 04:08 04:56 83 % 21:48 after dusk
Sat, 07-Jun 21:29 22:17 dusk 02:54 04:08 04:55 90 % 22:30 after dusk
Sun, 08-Jun 21:30 22:18 dusk 03:12 04:07 04:55 95 % 23:15 after dusk
Mon, 09-Jun 21:31 22:19 dusk 03:36 04:07 04:54 98 % 00:04 after dusk
Tue, 10-Jun 21:32 22:20 dusk dawn 04:06 04:54 100 % 00:55 all night
Wed, 11-Jun 21:32 22:20 22:37 dawn 04:06 04:54 99 % 01:48 before dawn
Thu, 12-Jun 21:33 22:21 23:25 dawn 04:05 04:54 97 % 02:43 before dawn
Fri, 13-Jun 21:33 22:22 00:00 dawn 04:05 04:53 93 % 03:36 before dawn
Sat, 14-Jun 21:34 22:22 00:25 dawn 04:05 04:53 87 % 04:28 before dawn
Sun, 15-Jun 21:35 22:23 00:43 dawn 04:05 04:53 79 % 05:17 before dawn
Mon, 16-Jun 21:35 22:24 00:57 dawn 04:05 04:53 70 % 06:04
Tue, 17-Jun 21:35 22:24 01:09 dawn 04:05 04:53 60 % 06:50
Wed, 18-Jun 21:36 22:24 01:21 dawn 04:05 04:53 48 % 07:37
Thu, 19-Jun 21:36 22:25 01:32 dawn 04:05 04:54 37 % 08:25
Fri, 20-Jun 21:36 22:25 01:46 dawn 04:05 04:54 26 % 09:16
Sat, 21-Jun 21:37 22:25 02:04 dawn 04:05 04:54 17 % 10:12
Sun, 22-Jun 21:37 22:25 02:30 dawn 04:06 04:54 9 % 11:12
Mon, 23-Jun 21:37 22:25 04:06 04:55 3 %
Tue, 24-Jun 21:37 22:25 04:04 dawn 04:07 04:55 1 % 12:16
Wed, 25-Jun 21:37 22:25 dusk 22:32 04:07 04:55 1 % 13:21
Thu, 26-Jun 21:37 22:25 dusk 23:11 04:08 04:56 3 % 14:24
Fri, 27-Jun 21:37 22:25 dusk 23:37 04:08 04:57 8 % 15:22
Sat, 28-Jun 21:36 22:25 dusk 23:54 04:09 04:57 15 % 16:14
Sun, 29-Jun 21:36 22:24 dusk 00:07 04:10 04:58 23 % 17:01
Mon, 30-Jun 21:36 22:24 dusk 00:18 04:10 04:58 32 % 17:44
Tue, 01-Jul 21:36 22:24 dusk 00:28 04:11 04:59 42 % 18:25
Wed, 02-Jul 21:35 22:23 dusk 00:37 04:12 05:00 52 % 19:05
Thu, 03-Jul 21:35 22:22 dusk 00:47 04:13 05:01 61 % 19:45
Fri, 04-Jul 21:34 22:22 dusk 01:00 04:14 05:02 70 % 20:27
Sat, 05-Jul 21:34 22:21 dusk 01:15 04:15 05:02 78 % 21:10 after dusk
Sun, 06-Jul 21:33 22:20 dusk 01:37 04:16 05:03 85 % 21:57 after dusk
Mon, 07-Jul 21:33 22:20 dusk 02:08 04:17 05:04 92 % 22:48 after dusk
Tue, 08-Jul 21:32 22:19 dusk 02:52 04:19 05:05 96 % 23:41 after dusk
Wed, 09-Jul 21:31 22:18 dusk 03:52 04:20 05:06 99 % 00:35 after dusk
Thu, 10-Jul 21:30 22:17 dusk dawn 04:21 05:07 100 % 01:30 all night
Fri, 11-Jul 21:30 22:16 22:29 dawn 04:23 05:09 99 % 02:23 before dawn
Sat, 12-Jul 21:29 22:15 22:49 dawn 04:24 05:10 95 % 03:14 before dawn
Sun, 13-Jul 21:28 22:13 23:05 dawn 04:25 05:11 90 % 04:02 before dawn
Mon, 14-Jul 21:27 22:12 23:17 dawn 04:27 05:12 82 % 04:49 before dawn
Tue, 15-Jul 21:26 22:11 23:29 dawn 04:28 05:13 73 % 05:35
Wed, 16-Jul 21:25 22:10 23:40 dawn 04:30 05:15 62 % 06:22
Thu, 17-Jul 21:24 22:08 23:53 dawn 04:31 05:16 51 % 07:11
Fri, 18-Jul 21:23 22:07 00:09 dawn 04:33 05:17 39 % 08:04
Sat, 19-Jul 21:21 22:05 00:30 dawn 04:34 05:18 29 % 09:01
Sun, 20-Jul 21:20 22:04 01:02 dawn 04:36 05:20 19 % 10:02
Mon, 21-Jul 21:19 22:02 01:49 dawn 04:38 05:21 11 % 11:05
Tue, 22-Jul 21:18 22:01 04:39 05:23 5 %
Wed, 23-Jul 21:16 21:59 04:17 dawn 04:41 05:24 1 % 12:08
Thu, 24-Jul 21:15 21:58 04:43 05:25 0 % 13:07
Fri, 25-Jul 21:13 21:56 dusk 21:58 04:44 05:27 2 % 14:02
Sat, 26-Jul 21:12 21:54 dusk 22:13 04:46 05:28 5 % 14:52
Sun, 27-Jul 21:10 21:52 dusk 22:25 04:48 05:30 11 % 15:37
Mon, 28-Jul 21:09 21:51 dusk 22:35 04:49 05:31 18 % 16:19
Tue, 29-Jul 21:07 21:49 dusk 22:44 04:51 05:33 26 % 17:00
Wed, 30-Jul 21:06 21:47 dusk 22:54 04:53 05:34 35 % 17:40
Thu, 31-Jul 21:04 21:45 dusk 23:05 04:55 05:36 45 % 18:22
Fri, 01-Aug 21:02 21:43 dusk 23:19 04:56 05:37 54 % 19:05
Sat, 02-Aug 21:01 21:41 dusk 23:38 04:58 05:39 64 % 19:50
Sun, 03-Aug 20:59 21:39 dusk 00:05 05:00 05:40 72 % 20:39
Mon, 04-Aug 20:57 21:37 dusk 00:43 05:02 05:42 81 % 21:31 after dusk
Tue, 05-Aug 20:55 21:35 dusk 01:37 05:04 05:44 88 % 22:25 after dusk
Wed, 06-Aug 20:54 21:33 dusk 02:45 05:05 05:45 94 % 23:20 after dusk
Thu, 07-Aug 20:52 21:31 dusk 04:05 05:07 05:47 98 % 00:14 after dusk
Fri, 08-Aug 20:50 21:29 dusk dawn 05:09 05:48 100 % 01:06 all night
Sat, 09-Aug 20:48 21:27 dusk dawn 05:11 05:50 99 % 01:56 all night
Sun, 10-Aug 20:46 21:25 dusk dawn 05:13 05:52 97 % 02:45 all night
Mon, 11-Aug 20:44 21:23 21:37 dawn 05:15 05:53 92 % 03:32 before dawn
Tue, 12-Aug 20:42 21:21 21:48 dawn 05:16 05:55 84 % 04:19 before dawn
Wed, 13-Aug 20:40 21:19 22:00 dawn 05:18 05:56 75 % 05:08 before dawn
Thu, 14-Aug 20:38 21:16 22:15 dawn 05:20 05:58 64 % 06:00
Fri, 15-Aug 20:36 21:14 22:34 dawn 05:22 06:00 53 % 06:55
Sat, 16-Aug 20:34 21:12 23:02 dawn 05:24 06:01 42 % 07:54
Sun, 17-Aug 20:32 21:10 23:43 dawn 05:25 06:03 31 % 08:56
Mon, 18-Aug 20:30 21:07 00:41 dawn 05:27 06:04 21 % 09:58
Tue, 19-Aug 20:28 21:05 01:57 dawn 05:29 06:06 12 % 10:57
Wed, 20-Aug 20:26 21:03 03:21 dawn 05:31 06:08 6 % 11:53
Thu, 21-Aug 20:24 21:01 05:33 06:09 2 %
Fri, 22-Aug 20:22 20:58 05:34 06:11 0 % 12:43
Sat, 23-Aug 20:20 20:56 05:36 06:13 1 % 13:30
Sun, 24-Aug 20:18 20:54 05:38 06:14 3 % 14:13
Mon, 25-Aug 20:15 20:51 dusk 20:52 05:40 06:16 7 % 14:55
Tue, 26-Aug 20:13 20:49 dusk 21:01 05:41 06:17 13 % 15:36
Wed, 27-Aug 20:11 20:47 dusk 21:12 05:43 06:19 21 % 16:17
Thu, 28-Aug 20:09 20:44 dusk 21:25 05:45 06:21 29 % 16:59
Fri, 29-Aug 20:07 20:42 dusk 21:41 05:47 06:22 38 % 17:43
Sat, 30-Aug 20:04 20:40 dusk 22:04 05:49 06:24 47 % 18:31
Sun, 31-Aug 20:02 20:37 dusk 22:36 05:50 06:26 57 % 19:21
Mon, 01-Sep 20:00 20:35 dusk 23:23 05:52 06:27 66 % 20:13
Tue, 02-Sep 19:58 20:33 dusk 00:24 05:54 06:29 75 % 21:07 after dusk
Wed, 03-Sep 19:55 20:30 dusk 01:39 05:55 06:30 83 % 22:01 after dusk
Thu, 04-Sep 19:53 20:28 dusk 03:02 05:57 06:32 91 % 22:54 after dusk
Fri, 05-Sep 19:51 20:25 dusk 04:28 05:59 06:34 96 % 23:46 after dusk
Sat, 06-Sep 19:48 20:23 dusk 05:55 06:01 06:35 99 % 00:35 after dusk
Sun, 07-Sep 19:46 20:21 dusk dawn 06:02 06:37 100 % 01:24 all night
Mon, 08-Sep 19:44 20:18 dusk dawn 06:04 06:38 98 % 02:12 all night
Tue, 09-Sep 19:42 20:16 dusk dawn 06:06 06:40 93 % 03:02 all night
Wed, 10-Sep 19:39 20:13 20:21 dawn 06:07 06:42 86 % 03:54 before dawn
Thu, 11-Sep 19:37 20:11 20:39 dawn 06:09 06:43 77 % 04:50 before dawn
Fri, 12-Sep 19:35 20:09 21:04 dawn 06:11 06:45 67 % 05:49
Sat, 13-Sep 19:32 20:06 21:41 dawn 06:13 06:47 56 % 06:50
Sun, 14-Sep 19:30 20:04 22:34 dawn 06:14 06:48 44 % 07:52
Mon, 15-Sep 19:28 20:01 23:44 dawn 06:16 06:50 33 % 08:52
Tue, 16-Sep 19:25 19:59 01:05 dawn 06:18 06:51 24 % 09:48
Wed, 17-Sep 19:23 19:57 02:30 dawn 06:19 06:53 15 % 10:39
Thu, 18-Sep 19:21 19:54 03:52 dawn 06:21 06:55 8 % 11:26
Fri, 19-Sep 19:18 19:52 06:23 06:56 4 %
Sat, 20-Sep 19:16 19:50 06:24 06:58 1 % 12:10
Sun, 21-Sep 19:14 19:47 06:26 07:00 0 % 12:51
Mon, 22-Sep 19:11 19:45 06:28 07:01 1 % 13:32
Tue, 23-Sep 19:09 19:42 06:29 07:03 4 % 14:13
Wed, 24-Sep 19:07 19:40 06:31 07:04 9 % 14:54
Thu, 25-Sep 19:04 19:38 dusk 19:47 06:33 07:06 15 % 15:38
Fri, 26-Sep 19:02 19:35 dusk 20:07 06:34 07:08 23 % 16:24
Sat, 27-Sep 19:00 19:33 dusk 20:35 06:36 07:09 31 % 17:13
Sun, 28-Sep 18:57 19:31 dusk 21:14 06:38 07:11 40 % 18:04
Mon, 29-Sep 18:55 19:28 dusk 22:09 06:39 07:13 50 % 18:57

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!

Brecon Beacons weather (Accuweather)

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