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

Hiking weather forecast

Brecon Beacons hourly weather (Visual Crossing)

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

Updated: 23:31 on Thu, 16-May

06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21
Today
Fri, 17-May 0% 0% 16% 16% 16% 16% 16% 16% 65% 65% 65% 65% 65% 65% 7% 7%
Sat, 18-May 3% 3% 65% 65% 65% 65% 65% 65% 84% 84% 84% 84% 84% 84% 26% 26%
Sun, 19-May 0% 0% 3% 3% 3% 3% 3% 3% 36% 36% 36% 36% 36% 36% 7% 7%
Mon, 20-May 3% 3% 10% 10% 10% 10% 10% 10% 42% 42% 42% 42% 42% 42% 16% 16%
Tue, 21-May 0% 0% 52% 52% 52% 52% 52% 52% 65% 65% 65% 65% 65% 65% 26% 26%
Wed, 22-May 19% 19% 45% 45% 45% 45% 45% 45% 45% 45% 45% 45% 45% 45% 10% 10%
Thu, 23-May 10% 10% 23% 23% 23% 23% 23% 23% 29% 29% 29% 29% 29% 29% 13% 13%
Fri, 24-May 13% 🌫 13% 13% 13% 13% 13% 13% 13% 39% 39% 39% 39% 39% 39% 16% 16%
Sat, 25-May 19% 🌫 19% 🌫 23% 🌫 23% 🌫 23% 23% 23% 23% 42% 42% 42% 42% 42% 42% 10% 10%
Sun, 26-May 16% 16% 23% 23% 23% 23% 23% 23% 26% 26% 26% 26% 26% 26% 10% 10%
Mon, 27-May 16% 🌫 16% 23% 23% 23% 23% 23% 23% 32% 32% 32% 32% 32% 32% 7% 7%
Tue, 28-May 19% 19% 32% 32% 32% 32% 32% 32% 55% 55% 55% 55% 55% 55% 19% 19%
Wed, 29-May 7% 7% 45% 45% 45% 45% 45% 45% 48% 48% 48% 48% 48% 48% 16% 16%
Thu, 30-May 10% 10% 39% 39% 39% 39% 39% 39% 58% 58% 58% 58% 58% 58% 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: 23:32 on Thu, 16-May

06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21
Today
Fri, 17-May 10% 6% 3% 3% 3% 3% 22% 42% 61% 70% 78% 87% 84% 80% 77% 53%
Sat, 18-May 0% 0% 0% 6% 13% 19% 38% 58% 77% 84% 90% 97% 95% 92% 90% 78%
Sun, 19-May 0% 0% 0% 0% 0% 0% 6% 13% 19% 21% 24% 26% 28% 30% 32% 30%
Mon, 20-May 0% 0% 0% 0% 0% 0% 5% 11% 16% 27% 37% 48% 48% 48% 48% 43%
Tue, 21-May 6% 6% 6% 14% 21% 29% 40% 50% 61% 65% 70% 74% 73% 72% 71% 59%
Wed, 22-May 33% 34% 35% 38% 42% 45% 53% 60% 68% 67% 66% 65% 57% 50% 42% 34%
Thu, 23-May 11% 8% 6% 10% 15% 19% 28% 36% 45% 47% 50% 52% 49% 45% 42% 36%
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: 22:00 on Thu, 16-May

06 09 12 15 18 21
Today 76%
Fri, 17-May 1% 6% 14% 43% 4% 3%
Sat, 18-May 3% 3% 7% 12% 13% 37%
Sun, 19-May 1% 1% 6% 29% 4% 0%
Mon, 20-May 1% 1% 3% 10% 8% 3%
Tue, 21-May 5% 7% 39% 40% 37% 10%
Wed, 22-May 7% 5% 12% 10% 8% 3%
Thu, 23-May 5% 6% 9% 11% 11% 7%

Powered by Met Office data.

Brecon Beacons weather (Met Office)

Updated: 14:18 on Thu, 16-May

Warm sunshine and heavy showers on Friday and the weekend.

This Evening and Tonight:

  • Periods of heavy rain will give a wet commute home for some of us with travel disruption possible.
  • Turning much drier overnight with clear spells developing.
  • Areas of mist, low cloud and fog forming as winds fall light.
  • Staying mild.
  • Minimum Temperature 8C.

Friday:

  • Brightening up through the morning with sunny spells.
  • Misty conditions may persist in coastal parts of northwest Wales and isolated heavy showers are possible inland, perhaps locally thundery.
  • Feeling warmer.
  • Maximum Temperature 21C.

Saturday to Monday:

  • Some warm sunshine at times through this period but still a chance of showers, these heaviest and most widespread on Saturday.
  • Mist and low cloud is possible during the mornings.

UK Day 6-7 and week 2

  • There is a lot of uncertainty in this period, even at the start when the UK will be in-between low pressure over the near continent trying to keep things unsettled and potentially thundery; high pressure to the west or southwest which would settle things down; and finally low pressure to the north or northwest which may being a more climatological split in conditions between the south and north.
  • Overall though, one way or another, it looks like remaining fairly unsettled across much of the UK, with further rain, showers or even thunderstorms in places, though there will be some sunshine between times, the best of this possibly in southwestern parts.
  • Both rainfall amounts and temperatures are likely to be a little above average, but some large spatial differences are likely.

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 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: 16:48 on Thu, 16-May

Evening

A chance of isolated thunderstorms this evening, then becoming dry.

Tomorow
Fri, 17-May

Misty low cloud clearing then warm sunny spells and isolated heavy showers.

Mist and low cloud forming through the early hours but some clear spells continuing. Any low cloud soon clearing after dawn to leave sunny spells and broken cloud. A warm afternoon with sunny spells but isolated slow-moving showers are likely to develop with a low risk of these turning into thunderstorms. Becoming dry during the evening.

Chance of Cloud free tops 30% soon rising to 95% or more by mid-morning.
Visibility Areas of low cloud above 300-500m at first but some mist or fog also possible in the valleys. Cloud and fog lifting and clearing most summits by mid-morning. Generally good visibility thereafter but deteriorating to poor or very poor in any afternoon heavy showers or thunderstorms.
Confidence High overall, though moderate for location and intensity of heavy and thundery showers.
View Strong sunshine at this time of the year so ensure you have sun protection with high UV levels expected.
Low risk Poor Visibility Thunderstorms
High risk Strong Sunlight

Conditions on the tops

Time Weather Rain Temp Wind Freezing
00:00 Partly cloudy (night) 20% 9 7 2200m
03:00 Partly cloudy (night) 10% 9 7 2100m
06:00 Mist 10% 9 7 2000m
09:00 Sunny intervals 20% 11 5 2000m
12:00 Light rain showers 30% 14 5 2100m
15:00 Heavy rain showers 60% 15 4 2200m
18:00 Sunny intervals 20% 14 5 2200m
21:00 Sunny intervals 10% 11 5 2200m
Sat, 18-May

Any low cloud at first, soon clearing to once again leave a day of sunny spells and showers. Perhaps fewer sunny intervals than on Friday with a higher risk of heavy showers. These could be slow-moving and locally thundery with hail possible before easing through the evening.

Ice Well above the summits.
Visibility Areas of low cloud above 500m at first and some mist or fog also possible in the valleys. Cloud and fog lifting and clearing most summits by mid-morning. Generally good visibility thereafter but deteriorating to poor or very poor in any afternoon heavy showers or thunderstorms.
Wind Northerly 10-15 mph.
Temp Plus 10 Celsius rising to plus 15 Celsius. (at high level)
Sun, 19-May

Morning fog patches soon clearing then a largely dry day with lengthy sunny periods. The small chance of an isolated afternoon shower developing. Light northeasterly winds. High UV levels.

Mon, 20-May

Morning mist and fog quickly clearing, then dry with sunny spells. Light northeasterly winds. High UV levels.

Tue, 21-May

Turning more changeable but some uncertainty in the details. Showers developing with a chance of longer spells of rain later. Winds remaining light from variable directions.

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.