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Storey Arms to Libanus or Circular via Ystradfellte walk

Strenuous route in the Fforest Fawr: 4 peaks, upland moor, limestone plateaus, and a glorious descent into the Usk Valley. Stretches of pathless terrain

Brecon Beacons Circular Long Tough

Hiking weather forecast

Brecon Beacons hourly weather (Visual Crossing)

Sunset: 21:03. Dusk: 21:46. Moon: 64% (dusk to 03:23)

Updated: 02:31 on Thu, 16-May

06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21
Today 0% 0% 13% 13% 13% 13% 13% 13% 100% 100% 100% 100% 100% 100% 58% 58%
Fri, 17-May 32% 32% 58% 58% 58% 58% 58% 58% 81% 81% 81% 81% 81% 81% 13% 13%
Sat, 18-May 3% 3% 42% 42% 42% 42% 42% 42% 81% 81% 81% 81% 81% 81% 13% 13%
Sun, 19-May 3% 3% 10% 10% 10% 10% 10% 10% 52% 52% 52% 52% 52% 52% 3% 3%
Mon, 20-May 0% 0% 0% 0% 0% 0% 0% 0% 16% 16% 16% 16% 16% 16% 3% 3%
Tue, 21-May 0% 0% 19% 19% 19% 19% 19% 19% 29% 29% 29% 29% 29% 29% 7% 7%
Wed, 22-May 7% 7% 16% 16% 16% 16% 16% 16% 32% 32% 32% 32% 32% 32% 23% 23%
Thu, 23-May 13% 13% 42% 42% 42% 42% 42% 42% 55% 55% 55% 55% 55% 55% 19% 19%
Fri, 24-May 26% 26% 32% 32% 32% 32% 32% 32% 39% 39% 39% 39% 39% 39% 13% 13%
Sat, 25-May 23% 23% 29% 29% 29% 29% 29% 29% 36% 36% 36% 36% 36% 36% 16% 16%
Sun, 26-May 10% 10% 45% 45% 45% 45% 45% 45% 52% 52% 52% 52% 52% 52% 16% 16%
Mon, 27-May 10% 10% 23% 23% 23% 23% 23% 23% 36% 36% 36% 36% 36% 36% 13% 13%
Tue, 28-May 16% 16% 32% 32% 32% 32% 32% 32% 58% 58% 58% 58% 58% 58% 16% 16%
Wed, 29-May 🌫 13% 🌫 13% 45% 45% 45% 45% 45% 45% 45% 45% 45% 45% 45% 45% 10% 10%
Thu, 30-May 19% 19% 23% 23% 23% 23% 23% 23% 52% 52% 52% 52% 52% 52% 13% 13%

Powered by Visual Crossing Weather

Brecon Beacons hourly weather (Open Meteo)

Sunset: 21:03. Dusk: 21:46. Moon: 64% (dusk to 03:23)

Updated: 02:32 on Thu, 16-May

06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21
Today 0% 0% 0% 1% 2% 3% 19% 36% 52% 66% 80% 94% 96% 98% 100% 90%
Fri, 17-May 32% 26% 19% 23% 28% 32% 48% 65% 81% 83% 85% 87% 82% 76% 71% 52%
Sat, 18-May 4% 2% 0% 2% 4% 6% 22% 39% 55% 60% 66% 71% 68% 64% 61% 50%
Sun, 19-May 0% 0% 0% 0% 0% 0% 6% 13% 19% 29% 38% 48% 46% 44% 42% 32%
Mon, 20-May 0% 0% 0% 0% 0% 0% 3% 7% 10% 11% 12% 13% 17% 22% 26% 18%
Tue, 21-May 4% 5% 6% 8% 11% 13% 19% 26% 32% 34% 37% 39% 37% 34% 32% 26%
Wed, 22-May 🌫 8% 🌫 11% 🌫 13% 16% 20% 23% 20% 16% 13% 18% 24% 29% 28% 27% 26% 24%
Thu, 23-May 14% 15% 16% 21% 27% 32% 36% 41% 45% 46% 47% 48% 44% 39% 35% 30%
Fri, 24-May

Weather data by Open-Meteo.com

Brecon Beacons hourly weather (Met Office)

Sunset: 21:03. Dusk: 21:46. Moon: 64% (dusk to 03:23)

Updated: 00:00 on Thu, 16-May

06 09 12 15 18 21
Today 0% 4% 17% 60% 66% 18%
Fri, 17-May 🌫 20% 9% 28% 30% 46% 6%
Sat, 18-May 🌫 15% 7% 17% 38% 37% 5%
Sun, 19-May 2% 3% 3% 4% 2% 1%
Mon, 20-May 7% 1% 6% 8% 7% 3%
Tue, 21-May 4% 7% 10% 35% 33% 31%
Wed, 22-May 7% 7% 8% 7% 7% 7%
Thu, 23-May

Powered by Met Office data.

Brecon Beacons weather (Met Office)

Updated: 12:12 on Wed, 15-May

Mostly dry overnight. Rain and heavy showers Thursday.

This Evening and Tonight:

  • Showers easing through this evening, leaving a dry night with plenty of clear spells where some mist and fog may develop.
  • Cooler under clearer skies, though generally another mild night for May.
  • Minimum Temperature 9C.

Thursday:

  • Sunny spells and showers for central and southern parts of the country, some heavy with hail and thunder.
  • Cloudy in the north, with outbreaks of rain.
  • Feeling warm and humid.
  • Maximum Temperature 19C.

Friday to Sunday:

  • Changeable with sunny spells and scattered showers.
  • Showers may be heavy and thundery at times.
  • Still warm where you catch the sunshine, although with temperatures closer to average.

UK Day 6-7 and week 2

  • The week should start on a reasonable note in many areas, with a fair amount of dry and bright weather, especially in southern parts of the UK.
  • Further north and west there will always be more in the way of cloud with a risk of some showers or spells of rain at times.
  • Through the rest of the period it looks likely that fairly typical conditions will dominate across all parts, with northern and western areas often most at risk of outbreaks of rain, while further south and east will see the best of the drier and brighter interludes.
  • There is a risk of showers even here though which at this time of year are prone to being heavy with occasional thunder.
  • Temperatures will probably remain a little above average.

UK Week 3 and 4

  • There is nothing to suggest that conditions will be massively different to climatology at the end of the current month and though the first half of June.
  • That said, both temperatures and rainfall are more-likely to be a little above average overall, with a fairly mixed bag seemingly most probable, with further rain or showers (possibly heavy/thundery at times) but also some spells of increasingly warm sunshine when it's not raining.

Powered by Met Office data.

Brecon Beacons mountain weather forecast (Met Office)

Sunset: 21:03. Dusk: 21:46. Moon: 64% (dusk to 03:23)

Updated: 16:07 on Wed, 15-May

Evening

Dry, with variable amounts of cloud.

Tomorow
Thu, 16-May

Sunny spells and scattered heavy and thundery showers.

Early morning fog soon clearing to give a dry start to the morning, with sunny spells. Showers clouds then developing, turning heavy by late morning and continuing through the afternoon. Some will be heavy, with hail and thunder. Showers easing through the evening, though tending to cloud over with some patchy rain possible late evening.

Chance of Cloud free tops 60% during the early hours, then rising to 90% by mid-morning, mainly in association with passing heavy showers.
Visibility Some mist and fog possible to start. Excellent visibility is expected, however heavy showers and possible thunderstorms will reduce the visibility to poor at times as they pass through.
Confidence High overall, though moderate for location and intensity of heavy and thundery showers.
View Bright sunshine with high UV levels expected. At the same time, heavy showers could bring sudden strong winds and the risk of hail and lightning.
Medium risk Poor Visibility Thunderstorms Heavy Persistent Rain Strong Sunlight

Conditions on the tops

Time Weather Rain Temp Wind Freezing
00:00 Partly cloudy (night) 10% 9 12 2000m
03:00 Partly cloudy (night) 10% 8 11 1900m
06:00 Sunny intervals 30% 9 8 1900m
09:00 Heavy rain showers 60% 11 10 1900m
12:00 Heavy rain showers 70% 13 9 2000m
15:00 Heavy rain showers 60% 12 8 2100m
18:00 Cloudy 30% 12 5 2200m
21:00 Cloudy 30% 11 5 2200m
Fri, 17-May

Low cloud and drizzle possible during the early hours. This clearing to sunshine and showers during the morning, some heavy and potentially thundery once more.

Ice Above the summits.
Visibility Bases between 400-600m in the early hours, clearing by mid-morning with cloud bases largely above the summits and excellent visibility prevailing. During heavy showers cloud bases may fall to 600m for a time and the visibility will be reduced to poor or very.
Wind Northwesterly 10mph gusting 15-20mph, perhaps 30-40mph in any thunderstorms.
Temp Plus 8 Celsius rising to plus 12 Celsius. (at high level)
Sat, 18-May

Low cloud and light rain initially, then brightening up with sunny spells and scattered heavy showers. Light to moderate northerly winds.

Sun, 19-May

Morning fog patches soon clearing then a largely dry day with lengthy sunny periods. Light northeasterly winds.

Mon, 20-May

Morning mist and fog quickly clearing, then dry with sunny spells. Light easterly winds.

Powered by Met Office data.

Brecon Beacons daylight

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

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

It should still be light enough to read at dawn and dusk, so there will be enough light for walking even earlier (later).

Brecon Beacons moonlight

Night of Sunset Dusk Moon Rise Moon Set Dawn Sunrise Phase % Full Max. Ht. Night Walk
Thu, 16-May 21:03 21:46 dusk 03:23 04:34 05:17 64 % 20:28
Fri, 17-May 21:05 21:47 dusk 03:32 04:33 05:15 73 % 21:07
Sat, 18-May 21:06 21:49 dusk 03:41 04:31 05:14 81 % 21:46 after dusk
Sun, 19-May 21:07 21:51 dusk 03:51 04:29 05:13 88 % 22:25 after dusk
Mon, 20-May 21:09 21:52 dusk 04:02 04:28 05:11 93 % 23:06 after dusk
Tue, 21-May 21:10 21:54 dusk 04:16 04:26 05:10 97 % 23:50 after dusk
Wed, 22-May 21:12 21:56 dusk dawn 04:25 05:09 100 % 00:38 all night
Thu, 23-May 21:13 21:57 dusk dawn 04:23 05:08 100 % 01:30 all night
Fri, 24-May 21:14 21:59 23:08 dawn 04:22 05:07 98 % 02:26 before dawn
Sat, 25-May 21:16 22:01 00:12 dawn 04:21 05:06 94 % 03:24 before dawn
Sun, 26-May 21:17 22:02 01:01 dawn 04:19 05:05 87 % 04:23 before dawn
Mon, 27-May 21:18 22:04 01:35 dawn 04:18 05:04 79 % 05:21 before dawn
Tue, 28-May 21:19 22:05 01:58 dawn 04:17 05:03 69 % 06:15
Wed, 29-May 21:21 22:06 02:15 dawn 04:16 05:02 59 % 07:07
Thu, 30-May 21:22 22:08 02:29 dawn 04:15 05:01 47 % 07:56
Fri, 31-May 21:23 22:09 02:41 dawn 04:14 05:00 36 % 08:44
Sat, 01-Jun 21:24 22:11 02:53 dawn 04:13 04:59 25 % 09:32
Sun, 02-Jun 21:25 22:12 03:06 dawn 04:12 04:59 16 % 10:22
Mon, 03-Jun 21:26 22:13 03:22 dawn 04:11 04:58 8 %
Tue, 04-Jun 21:27 22:14 03:43 dawn 04:10 04:57 3 %
Wed, 05-Jun 21:28 22:15 04:09 04:57 0 %
Thu, 06-Jun 21:29 22:16 dusk 22:19 04:09 04:56 0 %
Fri, 07-Jun 21:30 22:17 dusk 23:24 04:08 04:56 2 % 14:09
Sat, 08-Jun 21:31 22:18 dusk 00:10 04:08 04:55 7 % 15:08
Sun, 09-Jun 21:31 22:19 dusk 00:41 04:07 04:55 13 % 16:03
Mon, 10-Jun 21:32 22:20 dusk 01:02 04:07 04:55 21 % 16:54
Tue, 11-Jun 21:33 22:21 dusk 01:18 04:06 04:54 29 % 17:40
Wed, 12-Jun 21:33 22:22 dusk 01:30 04:06 04:54 38 % 18:23
Thu, 13-Jun 21:34 22:22 dusk 01:40 04:06 04:54 48 % 19:03
Fri, 14-Jun 21:35 22:23 dusk 01:49 04:05 04:54 57 % 19:42
Sat, 15-Jun 21:35 22:24 dusk 01:58 04:05 04:54 66 % 20:21
Sun, 16-Jun 21:36 22:24 dusk 02:08 04:05 04:54 75 % 21:01 after dusk
Mon, 17-Jun 21:36 22:25 dusk 02:21 04:05 04:54 83 % 21:44 after dusk
Tue, 18-Jun 21:36 22:25 dusk 02:37 04:05 04:54 90 % 22:30 after dusk
Wed, 19-Jun 21:37 22:25 dusk 03:01 04:06 04:54 95 % 23:20 after dusk
Thu, 20-Jun 21:37 22:25 dusk 03:35 04:06 04:54 99 % 00:15 after dusk
Fri, 21-Jun 21:37 22:26 dusk dawn 04:06 04:55 100 % 01:14 all night
Sat, 22-Jun 21:37 22:26 22:56 dawn 04:06 04:55 99 % 02:14 before dawn
Sun, 23-Jun 21:37 22:26 23:36 dawn 04:07 04:55 95 % 03:14 before dawn
Mon, 24-Jun 21:37 22:26 00:02 dawn 04:07 04:56 90 % 04:10 before dawn
Tue, 25-Jun 21:37 22:26 00:22 dawn 04:08 04:56 81 % 05:03 before dawn
Wed, 26-Jun 21:37 22:26 00:36 dawn 04:08 04:57 72 % 05:53
Thu, 27-Jun 21:37 22:25 00:49 dawn 04:09 04:57 61 % 06:42
Fri, 28-Jun 21:37 22:25 01:01 dawn 04:10 04:58 49 % 07:29
Sat, 29-Jun 21:37 22:25 01:13 dawn 04:10 04:58 38 % 08:18
Sun, 30-Jun 21:36 22:24 01:27 dawn 04:11 04:59 27 % 09:08
Mon, 01-Jul 21:36 22:24 01:46 dawn 04:12 05:00 18 % 10:02
Tue, 02-Jul 21:36 22:23 02:12 dawn 04:13 05:01 10 %
Wed, 03-Jul 21:35 22:23 02:49 dawn 04:14 05:01 5 %
Thu, 04-Jul 21:35 22:22 03:41 dawn 04:15 05:02 1 %
Fri, 05-Jul 21:34 22:21 04:16 05:03 0 %
Sat, 06-Jul 21:34 22:21 dusk 22:40 04:17 05:04 1 % 13:52
Sun, 07-Jul 21:33 22:20 dusk 23:05 04:18 05:05 4 % 14:45
Mon, 08-Jul 21:32 22:19 dusk 23:23 04:20 05:06 9 % 15:33
Tue, 09-Jul 21:31 22:18 dusk 23:36 04:21 05:07 16 % 16:18
Wed, 10-Jul 21:31 22:17 dusk 23:46 04:22 05:08 23 % 16:59
Thu, 11-Jul 21:30 22:16 dusk 23:56 04:23 05:09 32 % 17:38
Fri, 12-Jul 21:29 22:15 dusk 00:05 04:25 05:11 41 % 18:17
Sat, 13-Jul 21:28 22:14 dusk 00:14 04:26 05:12 50 % 18:56
Sun, 14-Jul 21:27 22:12 dusk 00:26 04:28 05:13 60 % 19:37
Mon, 15-Jul 21:26 22:11 dusk 00:40 04:29 05:14 69 % 20:21
Tue, 16-Jul 21:25 22:10 dusk 01:00 04:31 05:15 78 % 21:09 after dusk
Wed, 17-Jul 21:24 22:08 dusk 01:29 04:32 05:17 86 % 22:02 after dusk
Thu, 18-Jul 21:23 22:07 dusk 02:12 04:34 05:18 92 % 22:59 after dusk
Fri, 19-Jul 21:21 22:06 dusk 03:15 04:35 05:19 97 % 23:59 after dusk
Sat, 20-Jul 21:20 22:04 dusk 04:35 04:37 05:21 100 % 01:00 after dusk
Sun, 21-Jul 21:19 22:03 22:04 dawn 04:38 05:22 100 % 01:59 before dawn
Mon, 22-Jul 21:18 22:01 22:26 dawn 04:40 05:23 97 % 02:55 before dawn
Tue, 23-Jul 21:16 21:59 22:43 dawn 04:42 05:25 91 % 03:48 before dawn
Wed, 24-Jul 21:15 21:58 22:56 dawn 04:43 05:26 83 % 04:38 before dawn
Thu, 25-Jul 21:13 21:56 23:08 dawn 04:45 05:28 74 % 05:26
Fri, 26-Jul 21:12 21:54 23:20 dawn 04:47 05:29 63 % 06:15
Sat, 27-Jul 21:10 21:53 23:34 dawn 04:49 05:31 52 % 07:05
Sun, 28-Jul 21:09 21:51 23:51 dawn 04:50 05:32 41 % 07:58
Mon, 29-Jul 21:07 21:49 00:14 dawn 04:52 05:34 30 % 08:53
Tue, 30-Jul 21:06 21:47 00:47 dawn 04:54 05:35 21 % 09:50
Wed, 31-Jul 21:04 21:45 01:33 dawn 04:56 05:37 13 %
Thu, 01-Aug 21:02 21:43 02:35 dawn 04:57 05:38 6 %
Fri, 02-Aug 21:01 21:41 03:48 dawn 04:59 05:40 2 %
Sat, 03-Aug 20:59 21:39 05:01 05:41 0 %
Sun, 04-Aug 20:57 21:37 05:03 05:43 0 %
Mon, 05-Aug 20:56 21:35 dusk 21:43 05:05 05:44 2 % 14:13
Tue, 06-Aug 20:54 21:33 dusk 21:54 05:06 05:46 6 % 14:55
Wed, 07-Aug 20:52 21:31 dusk 22:03 05:08 05:48 11 % 15:35
Thu, 08-Aug 20:50 21:29 dusk 22:12 05:10 05:49 18 % 16:14
Fri, 09-Aug 20:48 21:27 dusk 22:21 05:12 05:51 25 % 16:53
Sat, 10-Aug 20:46 21:25 dusk 22:32 05:14 05:52 34 % 17:33
Sun, 11-Aug 20:44 21:23 dusk 22:44 05:15 05:54 43 % 18:15
Mon, 12-Aug 20:42 21:21 dusk 23:01 05:17 05:56 53 % 19:01
Tue, 13-Aug 20:40 21:18 dusk 23:25 05:19 05:57 63 % 19:50
Wed, 14-Aug 20:38 21:16 dusk 00:00 05:21 05:59 73 % 20:44
Thu, 15-Aug 20:36 21:14 dusk 00:53 05:23 06:00 82 % 21:42 after dusk
Fri, 16-Aug 20:34 21:12 dusk 02:05 05:25 06:02 89 % 22:42 after dusk
Sat, 17-Aug 20:32 21:10 dusk 03:31 05:26 06:04 95 % 23:42 after dusk
Sun, 18-Aug 20:30 21:07 dusk 05:05 05:28 06:05 99 % 00:40 after dusk
Mon, 19-Aug 20:28 21:05 dusk dawn 05:30 06:07 100 % 01:35 all night
Tue, 20-Aug 20:26 21:03 dusk dawn 05:32 06:09 98 % 02:28 all night
Wed, 21-Aug 20:24 21:01 21:14 dawn 05:34 06:10 93 % 03:18 before dawn
Thu, 22-Aug 20:22 20:58 21:27 dawn 05:35 06:12 85 % 04:09 before dawn
Fri, 23-Aug 20:20 20:56 21:40 dawn 05:37 06:13 76 % 05:00 before dawn
Sat, 24-Aug 20:17 20:54 21:56 dawn 05:39 06:15 66 % 05:53
Sun, 25-Aug 20:15 20:51 22:17 dawn 05:41 06:17 55 % 06:48
Mon, 26-Aug 20:13 20:49 22:46 dawn 05:42 06:18 44 % 07:45
Tue, 27-Aug 20:11 20:47 23:29 dawn 05:44 06:20 33 % 08:43
Wed, 28-Aug 20:09 20:44 00:26 dawn 05:46 06:22 24 % 09:40
Thu, 29-Aug 20:06 20:42 01:36 dawn 05:48 06:23 15 %
Fri, 30-Aug 20:04 20:40 02:52 dawn 05:49 06:25 9 %
Sat, 31-Aug 20:02 20:37 04:10 dawn 05:51 06:26 4 %
Sun, 01-Sep 20:00 20:35 05:26 dawn 05:53 06:28 1 %
Mon, 02-Sep 19:57 20:32 05:55 06:30 0 %
Tue, 03-Sep 19:55 20:30 05:56 06:31 1 % 13:34
Wed, 04-Sep 19:53 20:28 05:58 06:33 3 % 14:13
Thu, 05-Sep 19:51 20:25 dusk 20:30 06:00 06:35 7 % 14:52
Fri, 06-Sep 19:48 20:23 dusk 20:40 06:02 06:36 13 % 15:31
Sat, 07-Sep 19:46 20:20 dusk 20:51 06:03 06:38 20 % 16:12
Sun, 08-Sep 19:44 20:18 dusk 21:06 06:05 06:39 28 % 16:56
Mon, 09-Sep 19:41 20:16 dusk 21:26 06:07 06:41 37 % 17:43
Tue, 10-Sep 19:39 20:13 dusk 21:55 06:08 06:43 47 % 18:34
Wed, 11-Sep 19:37 20:11 dusk 22:39 06:10 06:44 57 % 19:29
Thu, 12-Sep 19:34 20:08 dusk 23:40 06:12 06:46 68 % 20:26
Fri, 13-Sep 19:32 20:06 dusk 00:59 06:13 06:47 78 % 21:25 after dusk
Sat, 14-Sep 19:30 20:04 dusk 02:28 06:15 06:49 86 % 22:23 after dusk
Sun, 15-Sep 19:27 20:01 dusk 04:01 06:17 06:51 93 % 23:19 after dusk
Mon, 16-Sep 19:25 19:59 dusk 05:35 06:18 06:52 98 % 00:12 after dusk
Tue, 17-Sep 19:23 19:57 dusk dawn 06:20 06:54 100 % 01:04 all night
Wed, 18-Sep 19:20 19:54 dusk dawn 06:22 06:56 99 % 01:56 all night
Thu, 19-Sep 19:18 19:52 dusk dawn 06:23 06:57 95 % 02:48 all night
Fri, 20-Sep 19:16 19:49 20:00 dawn 06:25 06:59 88 % 03:42 before dawn
Sat, 21-Sep 19:13 19:47 20:19 dawn 06:27 07:00 79 % 04:38 before dawn
Sun, 22-Sep 19:11 19:45 20:46 dawn 06:28 07:02 69 % 05:37
Mon, 23-Sep 19:09 19:42 21:24 dawn 06:30 07:04 59 % 06:36
Tue, 24-Sep 19:06 19:40 22:18 dawn 06:32 07:05 48 % 07:35
Wed, 25-Sep 19:04 19:38 23:25 dawn 06:33 07:07 38 % 08:30
Thu, 26-Sep 19:02 19:35 00:41 dawn 06:35 07:09 28 % 09:21
Fri, 27-Sep 19:00 19:33 01:58 dawn 06:37 07:10 20 % 10:09
Sat, 28-Sep 18:57 19:31 03:14 dawn 06:38 07:12 13 %
Sun, 29-Sep 18:55 19:28 04:28 dawn 06:40 07:14 7 %
Mon, 30-Sep 18:53 19:26 05:39 dawn 06:42 07:15 3 %
Tue, 01-Oct 18:50 19:24 06:43 07:17 1 %
Wed, 02-Oct 18:48 19:21 06:45 07:19 0 %
Thu, 03-Oct 18:46 19:19 06:47 07:20 1 % 13:30
Fri, 04-Oct 18:43 19:17 06:48 07:22 4 % 14:11
Sat, 05-Oct 18:41 19:15 06:50 07:24 9 % 14:54
Sun, 06-Oct 18:39 19:12 dusk 19:31 06:52 07:25 15 % 15:39
Mon, 07-Oct 18:37 19:10 dusk 19:56 06:53 07:27 23 % 16:29
Tue, 08-Oct 18:34 19:08 dusk 20:34 06:55 07:29 32 % 17:22
Wed, 09-Oct 18:32 19:06 dusk 21:27 06:57 07:30 42 % 18:17
Thu, 10-Oct 18:30 19:04 dusk 22:37 06:58 07:32 52 % 19:14
Fri, 11-Oct 18:28 19:01 dusk 00:00 07:00 07:34 63 % 20:10
Sat, 12-Oct 18:26 18:59 dusk 01:29 07:02 07:36 73 % 21:05
Sun, 13-Oct 18:23 18:57 dusk 02:59 07:03 07:37 83 % 21:57 after dusk
Mon, 14-Oct 18:21 18:55 dusk 04:30 07:05 07:39 91 % 22:49 after dusk
Tue, 15-Oct 18:19 18:53 dusk 06:02 07:07 07:41 97 % 23:40 after dusk
Wed, 16-Oct 18:17 18:51 dusk dawn 07:08 07:43 100 % 00:31 all night
Thu, 17-Oct 18:15 18:49 dusk dawn 07:10 07:44 100 % 01:25 all night
Fri, 18-Oct 18:13 18:47 dusk dawn 07:12 07:46 97 % 02:21 all night
Sat, 19-Oct 18:10 18:45 dusk dawn 07:13 07:48 91 % 03:21 all night
Sun, 20-Oct 18:08 18:43 19:18 dawn 07:15 07:50 83 % 04:23 before dawn
Mon, 21-Oct 18:06 18:41 20:06 dawn 07:17 07:51 74 % 05:24
Tue, 22-Oct 18:04 18:39 21:11 dawn 07:18 07:53 64 % 06:22
Wed, 23-Oct 18:02 18:37 22:26 dawn 07:20 07:55 54 % 07:16
Thu, 24-Oct 18:00 18:35 23:45 dawn 07:22 07:57 44 % 08:06
Fri, 25-Oct 17:58 18:33 01:02 dawn 07:23 07:58 34 % 08:51
Sat, 26-Oct 17:56 18:31 01:17 dawn 06:25 07:00 25 % 08:33
Sun, 27-Oct 16:54 17:29 02:28 dawn 06:27 07:02 17 % 09:12
Mon, 28-Oct 16:52 17:27 03:38 dawn 06:28 07:04 11 % 09:51
Tue, 29-Oct 16:50 17:26 04:48 dawn 06:30 07:05 6 % 10:30
Wed, 30-Oct 16:49 17:24 05:59 dawn 06:32 07:07 2 %
Thu, 31-Oct 16:47 17:22 06:33 07:09 0 %
Fri, 01-Nov 16:45 17:20 06:35 07:11 0 %
Sat, 02-Nov 16:43 17:19 06:37 07:13 2 %
Sun, 03-Nov 16:41 17:17 06:39 07:14 6 %
Mon, 04-Nov 16:40 17:15 dusk 17:34 06:40 07:16 11 % 14:18
Tue, 05-Nov 16:38 17:14 dusk 18:22 06:42 07:18 18 % 15:12
Wed, 06-Nov 16:36 17:12 dusk 19:27 06:43 07:20 27 % 16:08
Thu, 07-Nov 16:34 17:11 dusk 20:44 06:45 07:22 37 % 17:03
Fri, 08-Nov 16:33 17:09 dusk 22:09 06:47 07:23 48 % 17:57
Sat, 09-Nov 16:31 17:08 dusk 23:35 06:48 07:25 59 % 18:49
Sun, 10-Nov 16:30 17:06 dusk 01:03 06:50 07:27 69 % 19:39
Mon, 11-Nov 16:28 17:05 dusk 02:30 06:52 07:29 80 % 20:27 after dusk

Notes

  • The moon's phase or fracillum (percentage of the moon illuminated) doesn't vary much with location.
  • A full moon is not just bigger, its much brighter. A half moon ('50%') give less than 5% of the illumination of a full moon. You can walk with a half moon if its high in the sky (after dusk for a growing moon, before dawn for a shrinking moon).
  • Sky glow (light reflected by air or clouds) from nearby cities, and especially snow on the ground also effect light levels.
  • Times will vary a few minutes, as (i) these figures are for the centre of the county the walk is in, (ii) if there are hills on the horizon, and (iii) if you are on a hill
  • Of course, you need a cloudless night as well!

Brecon Beacons weather (Accuweather)

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