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The Clydach Gorge (Brynmawr to Abergavenny or vice versa) Walk

Wild and dramatic Clydach Gorge: waterfalls, cascades, fast-flowing waters, ancient beechwoods as well as an ironworks' ruins and an elevated railway line

Brecon Beacons

Hiking weather forecast

Brecon Beacons hourly weather (Visual Crossing)

Sunset: 20:38. Dusk: 21:17. Dark: 22:08. Moon 23% (dusk to 02:09)

Updated: Thu, 01-May at 05:39

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% 65% 65% 65% 65% 65% 65% 13% 13%
Fri, 02 May 0% 0% 0% 0% 0% 0% 0% 0% 3% 3% 3% 3% 3% 3% 0% 0%
Sat, 03 May 3% 3% 10% 10% 10% 10% 10% 10% 19% 19% 19% 19% 19% 19% 13% 13%
Sun, 04 May 7% 7% 0% 0% 0% 0% 0% 0% 3% 3% 3% 3% 3% 3% 0% 0%
Mon, 05 May 0% 0% 0% 0% 0% 0% 0% 0% 7% 7% 7% 7% 7% 7% 0% 0%
Tue, 06 May 0% 0% 10% 10% 10% 10% 10% 10% 13% 13% 13% 13% 13% 13% 0% 0%
Wed, 07 May 0% 0% 7% 7% 7% 7% 7% 7% 23% 23% 23% 23% 23% 23% 7% 7%
Thu, 08 May 3% 3% 10% 10% 10% 10% 10% 10% 23% 23% 23% 23% 23% 23% 3% 3%
Fri, 09 May 3% 3% 7% 7% 7% 7% 7% 7% 39% 39% 39% 39% 39% 39% 3% 3%
Sat, 10 May 0% 0% 7% 7% 7% 7% 7% 7% 19% 19% 19% 19% 19% 19% 3% 3%
Sun, 11 May 0% 0% 7% 7% 7% 7% 7% 7% 13% 13% 13% 13% 13% 13% 3% 3%
Mon, 12 May 7% 7% 13% 13% 13% 13% 13% 13% 29% 29% 29% 29% 29% 29% 10% 10%
Tue, 13 May 7% 7% 16% 16% 16% 16% 16% 16% 36% 36% 36% 36% 36% 36% 7% 7%
Wed, 14 May 0% 0% 26% 26% 26% 26% 26% 26% 16% 16% 16% 16% 16% 16% 7% 7%
Thu, 15 May 16% 16% 26% 26% 26% 26% 26% 26% 42% 42% 42% 42% 42% 42% 10% 10%

Percentages are the chance of rain.

Weather data by Visual Crossing

Brecon Beacons hourly weather (Open Meteo)

Sunset: 20:38. Dusk: 21:17. Dark: 22:08. Moon 23% (dusk to 02:09)

Updated: Thu, 01-May at 05:37

06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21
Today 0% 0% 0% 0% 0% 0% 0% 2% 10% 21% 27% 23% 15% 8% 5% 3%
Fri, 02 May 19% 25% 24% 19% 14% 11% 8% 6% 5% 4% 4% 3% 3% 2% 1% 1%
Sat, 03 May 0% 0% 1% 1% 2% 2% 2% 2% 2% 2% 2% 1% 1% 0% 0% 0%
Sun, 04 May 0% 0% 0% 0% 0% 1% 2% 2% 2% 1% 0% 0% 0% 0% 0% 0%
Mon, 05 May 0% 0% 0% 0% 0% 1% 3% 4% 4% 4% 4% 3% 1% 0% 0% 1%
Tue, 06 May 0% 0% 0% 0% 0% 0% 0% 0% 1% 3% 4% 4% 4% 4% 3% 3%
Wed, 07 May 0% 0% 1% 1% 2% 3% 3% 4% 6% 7% 9% 10% 12% 12% 11% 10%
Thu, 08 May 5% 6% 6% 7% 7% 7% 8% 8% 8% 7% 7% 7% 6% 6% 6% 5%
Fri, 09 May 2% 2% 2% 3% 4% 5% 5% 6% 7% 8% 9% 10% 10% 10% 9% 8%
Sat, 10 May 3% 4% 4% 4% 4% 4% 5% 6% 8% 11% 14% 17% 19% 20% 18% 15%
Sun, 11 May 0% 0% 0% 1% 2% 3% 4% 6% 9% 13% 17% 20% 24% 25% 24% 21%
Mon, 12 May 9% 10% 11% 13% 14% 15% 17% 18% 19% 20% 21% 22% 22% 22% 21% 18%
Tue, 13 May 11% 12% 13% 15% 16% 17% 19% 20% 21% 21% 21% 21% 21% 20% 19% 18%
Wed, 14 May 11% 12% 14% 16% 18% 20% 22% 24% 26% 27% 28% 29% 29% 29% 27% 24%
Thu, 15 May 13% 14% 14% 15% 15% 15% 16% 16% 16% 16% 37% 40% 42% 42% 39% 33%
Fri, 16 May 11% 13% 14% 16% 17% 19% 20% 23% 27% 31% 36% 41% 46% 48% 45% 39%

Percentages are the chance of rain.

Weather data by Open-Meteo

Brecon Beacons hourly weather (Met Office)

Sunset: 20:38. Dusk: 21:17. Dark: 22:08. Moon 23% (dusk to 02:09)

Updated: Thu, 01-May at 05:00

06 09 12 15 18 21
Today 0% 0% 7% 51% 54% 47%
Fri, 02 May 3% 3% 3% 4% 1% 1%
Sat, 03 May 0% 1% 4% 2% 3% 1%
Sun, 04 May 4% 8% 8% 9% 8% 8%
Mon, 05 May 8% 11% 11% 10% 9% 8%
Tue, 06 May 3% 3% 9% 9% 8% 2%
Wed, 07 May 3% 10% 8% 9% 8% 8%

Percentages are the chance of rain.

Weather data by Met Office

Regional weather (Met Office)

Sunset: 20:38. Dusk: 21:17. Dark: 22:08. Moon 23% (dusk to 02:09)

Updated: Thu, 01-May at 05:38

Wales

Warm and sunny with a few showers this afternoon.

  • Light winds and plenty of sunshine for all, with the warm spell peaking today
  • Some cloud developing in the afternoon with a few scattered, perhaps thundery, showers in places, but plenty of dry spells too
  • Maximum Temperature 26C

Tonight:

  • Largely dry and mild with evening showers soon fading away
  • Cloud thickening from the south brings the odd spot of rain by dawn
  • Chillier beneath clear skies in the northwest
  • Minimum Temperature 12C

Friday:

  • Widely dry with light winds and plenty of sunny spells
  • Another warm day, though temperatures down a touch compared with recent days
  • Maximum Temperature 22C

Outlook for Saturday to Monday:

  • Cooler and more changeable over the bank holiday weekend
  • Mainly cloudy with a few spots of rain, but plenty of dry periods too
  • Breezy at times around the coasts

UK Day 6-7 and week 2

  • Mainly dry with spells of sunshine across the UK at the start of this period, and feeling slightly less warm than the previous week
  • A few showers are likely in places, mainly along coasts in the north and east
  • Little change is expected through the working week, with a large amount of dry weather and sunny spells
  • Some showers or longer spells of rain may develop at times, and if they do they are most likely to affect the north of the UK, while further south dry weather is likely to prevail
  • Winds will mostly be light, but could become stronger at times in the far north
  • Temperatures will generally be near normal or slightly above normal for the time of year

UK Week 3 and 4

  • Fairly typical spring weather is likely through the second half of May
  • Periods of fine and dry weather are likely to be interspersed with occasional spells of rain and showers, with a risk of heavy rain and thunderstorms in places
  • Temperatures will most likely be near or slightly above average overall

Weather data by Met Office

Brecon Beacons mountain weather forecast (Met Office)

Updated: Thu, 01-May at 02:05

Specialist mountain forecast: MWIS

Today
Thu, 01-May

Very warm and largely sunny, turning a little cloudier later. Small chance of an isolated afternoon thunderstorm developing.

Another very warm and mostly sunny day to follow. Cloud will tend to increase through the afternoon and evening, with increasingly hazy sunshine. There is a small risk of an isolated thunderstorm developing in the afternoon, which could bring localised hail/lightning.

Low risk Thunderstorms
High risk Strong Sunlight
Chance of Cloud free tops 90% or more.
Ground conditions Please see - https://yrwyddfa.live/
Visibility Largely cloud free for most of the day, just the chance of some patchy cloud developing across summits into the evening, and also briefly should any thunderstorms develop. Visibilities generally very good or excellent, but could briefly lower to moderate/poor in any thunderstorms or patchy summit cloud later.
Confidence High for mostly fine, very warm conditions Thursday, before turning much cooler into the weekend. Lower confidence for shower/thunderstorm risk later Thursday.
View UV levels will be moderate to high around the middle of the day so sun protection advisable, along with plentiful hydration in warm temperatures. Small risk of lightning strikes/hail if any isolated thunderstorms develop.

Conditions on the tops at 900m

Time Weather Rain Temp Wind Freezing
06:00 Sunny 00% 14 9 2100m
09:00 Sunny 05% 14 6 2100m
12:00 Sunny 10% 15 8 2200m
15:00 Sunny intervals 20% 15 10 2300m
18:00 Sunny intervals 10% 13 8 2400m
21:00 Partly cloudy (night) 10% 10 11 2600m
Fri, 02-May

Partly cloudy overnight, just the chance of an isolated shower. However, soon turning fine and dry with sunny spells, but feeling noticeably cooler than Thursday, especially with a brisker wind.

Ice Above summits.
Visibility Chance of some patchy cloud across summits through the early hours, however this should quickly disperse in the morning to leave summits generally cloud free with plenty of sunshine. Visibility generally excellent with far reaching views likely.
Wind Northerly or northeasterly 25-30mph, gust 35mph
Temp (tops) Plus 4 degrees Celsius rising to plus 8 degrees Celsius. at 800m
Sat, 03-May

A dry and fine day. Strong north to northeast breeze at elevation with 40mph summit gusts. Freezing level above the summits.

Sun, 04-May

Any early patchy summit cloud clearing, to leave a dry day with sunny spells. A significant chill at summit height in strong northeast winds with 40mph summit gusts. Freezing level above the summits.

Mon, 05-May

Any early patchy summit cloud clearing, to leave a mostly dry day with sunny spells, perhaps an increased chance of an isolated shower. A significant chill at summit height in fresh to strong northeast winds with 35mph summit gusts. Freezing level close to summits.

Weather data by Met Office

Brecon Beacons Air Quality (Pollen and UV)

Updated: Thu, 01-May 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 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 grass 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 grass 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 grass air q UV alder birch grass air q   alder birch grass air q   alder birch grass air q   alder birch grass
Fri, 02 May air q   alder birch grass air q   alder birch grass air q   alder birch grass air q   alder birch grass air q   alder birch grass air q   alder birch grass air q   alder birch grass air q UV alder birch grass air q UV   birch grass air q UV   birch grass air q UV   birch grass air q UV   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 grass 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 grass air q   alder birch grass air q   alder birch grass air q     birch grass
Sat, 03 May air q     birch grass air q     birch grass air q     birch grass air q     birch grass air q     birch grass air q     birch grass air q UV   birch grass air q UV   birch grass air q UV   birch grass air q UV   birch grass air q UV   birch grass air q UV   birch grass air q UV   birch grass air q UV   birch grass air q UV   birch grass air q UV   birch grass air q UV   birch grass air q UV   birch grass air q UV   birch grass air q UV   birch grass air q UV   birch grass air q     birch grass air q     birch grass air q     birch grass
Sun, 04 May air q     birch grass air q     birch grass air q         air q         air q         air q         air q UV       air q UV       air q UV       air q UV       air q UV       air q UV       air q UV       air q UV       air q UV       air q UV       air q UV       air q UV       air q UV       air q UV       air q UV       air q         air q         air q        

Pollens

These pollens are shown (in season):

  • Grass
  • Alder and birch (trees)
  • Mugwort and Ragweed (weeds)

When out walking, wraparound glasses, a disposable or washable facemask, and being at the front of the group, all help.

Other forecasts: Met Office, University of Worcester

UV and Air Quality

The UV forecast takes account of cloud cover.

"Air Q", the European Air Quality index, is a mix of dust/particulates, ozone, sulphur and nitrous oxides

Data

Weather data by Open-Meteo and CAMS ENSEMBLE

Brecon Beacons Visibility

Updated: Thu, 01-May at 05:37

06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21
Today 26km 24km 26km 34km 34km 37km 36km 35km 37km 37km 35km 22km 25km 20km 17km 50km
Fri, 02 May 2km 8km 13km 15km 19km 24km 26km 26km 24km 24km 23km 24km 24km 21km 18km 29km
Sat, 03 May 11km 12km 50km 12km 15km 16km 22km 65km 64km 68km 74km 72km 68km 72km 71km 73km
Sun, 04 May 36km 41km 48km 54km 61km 65km 68km 71km 73km 74km 75km 75km 75km 75km 73km 71km
Mon, 05 May 28km 27km 31km 35km 40km 49km 59km 68km 69km 70km 71km 71km 72km 72km 67km 61km

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

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, 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
Tue, 30-Sep 18:53 19:26 dusk 23:17 06:41 07:14 60 % 19:50
Wed, 01-Oct 18:50 19:24 dusk 00:35 06:43 07:16 69 % 20:42
Thu, 02-Oct 18:48 19:22 dusk 01:58 06:44 07:18 79 % 21:33 after dusk
Fri, 03-Oct 18:46 19:19 dusk 03:23 06:46 07:19 87 % 22:23 after dusk
Sat, 04-Oct 18:43 19:17 dusk 04:50 06:47 07:21 93 % 23:11 after dusk
Sun, 05-Oct 18:41 19:15 dusk 06:17 06:49 07:23 98 % 00:00 after dusk
Mon, 06-Oct 18:39 19:12 dusk dawn 06:51 07:24 100 % 00:49 all night
Tue, 07-Oct 18:37 19:10 dusk dawn 06:52 07:26 99 % 01:42 all night
Wed, 08-Oct 18:34 19:08 dusk dawn 06:54 07:28 95 % 02:37 all night
Thu, 09-Oct 18:32 19:06 19:06 dawn 06:56 07:30 89 % 03:37 before dawn
Fri, 10-Oct 18:30 19:04 19:39 dawn 06:57 07:31 80 % 04:40 before dawn
Sat, 11-Oct 18:28 19:01 20:27 dawn 06:59 07:33 70 % 05:44
Sun, 12-Oct 18:26 18:59 21:34 dawn 07:01 07:35 59 % 06:46
Mon, 13-Oct 18:23 18:57 22:53 dawn 07:02 07:36 48 % 07:44
Tue, 14-Oct 18:21 18:55 00:17 dawn 07:04 07:38 37 % 08:36
Wed, 15-Oct 18:19 18:53 01:40 dawn 07:06 07:40 27 % 09:24
Thu, 16-Oct 18:17 18:51 02:59 dawn 07:07 07:42 19 % 10:09
Fri, 17-Oct 18:15 18:49 04:14 dawn 07:09 07:43 12 % 10:50
Sat, 18-Oct 18:13 18:47 05:27 dawn 07:11 07:45 6 % 11:31
Sun, 19-Oct 18:10 18:45 07:12 07:47 2 %
Mon, 20-Oct 18:08 18:43 07:14 07:49 0 % 12:11
Tue, 21-Oct 18:06 18:41 07:16 07:50 0 % 12:52
Wed, 22-Oct 18:04 18:39 07:17 07:52 2 % 13:35
Thu, 23-Oct 18:02 18:37 07:19 07:54 5 % 14:20
Fri, 24-Oct 18:00 18:35 dusk 18:37 07:21 07:56 10 % 15:08
Sat, 25-Oct 17:58 18:33 dusk 19:12 06:23 06:57 17 % 15:58
Sun, 26-Oct 16:56 17:31 dusk 19:01 06:24 06:59 25 % 15:50
Mon, 27-Oct 16:54 17:29 dusk 20:03 06:26 07:01 34 % 16:42

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.