Picws Du, from Fan Foel

SWC Walk 86 Fan Brycheiniog and Fan Foel (The Black Mountain)

11-Oct-16 • thomasgrabow on Flickr

swcwalks swcwalk86 banner

Fan Fechan Moraine at bottom of Fan Hir Escarpment

SWC Walk 86 Fan Brycheiniog and Fan Foel (The Black Mountain)

11-Oct-16 • thomasgrabow on Flickr

swcwalks swcwalk86 walkicon

Northerly Views from Fan Hir towards Glasfynydd Forest

SWC Walk 86 Fan Brycheiniog and Fan Foel (The Black Mountain)

11-Oct-16 • thomasgrabow on Flickr

swcwalks swcwalk86 walkicon

Wild Hill Ponies (on Cefn Disgwylfa) [off-route]

SWC Walk 86 Fan Brycheiniog and Fan Foel (The Black Mountain)

11-Oct-16 • thomasgrabow on Flickr

swcwalks swcwalk86 walkicon

Fan Gyhirych in the Evening Sun

SWC Walk 86 Fan Brycheiniog and Fan Foel (The Black Mountain)

12-Oct-16 • thomasgrabow on Flickr

swcwalks swcwalk86 walkicon

Fan Gyhirych, from ascent up Allt Fach

SWC Walk 86 Fan Brycheiniog and Fan Foel (The Black Mountain)

11-Oct-16 • thomasgrabow on Flickr

swcwalks swcwalk86

Fan Hir Ridge in clouds

SWC Walk 86 Fan Brycheiniog and Fan Foel (The Black Mountain)

11-Oct-16 • thomasgrabow on Flickr

swcwalks swcwalk86

Black Mountain (Fan Brycheiniog and Fan Foel) from Glyntawe walk

Hiking Weather

7 Day Forecast for Brecon Beacons NP

Sunset: 16:49. Dusk: 17:26. Moon: 86% (dusk to 05:40)

8 9 10 11 12 13 14 15 16 17 18 19 20
Sun, 24-Jan 12% 10% 10% 13% 25% 24% 24% 20% 21% 19% 27% 22% 9%
Mon, 25-Jan 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 2% 2%
Tue, 26-Jan 44% 63% 68% 71% 74% 69% 67% 70% 50% 24% 21% 20% 13%
Wed, 27-Jan 8% 9% 13% 16% 22% 45% 69% 76% 82% 79% 81% 85% 81%
Thu, 28-Jan 57% 51% 50% 51% 28% 12% 9% 8% 10% 11% 23% 52% 67%
Fri, 29-Jan 34% 44% 43% 45% 49% 54% 54% 49% 34% 12% 8% 8% 10%
Sat, 30-Jan 65% 65% 64% 66% 66% 64% 65% 67% 75% 81% 83% 82% 79%
Sun, 31-Jan 14%

Powered by Dark Sky

Loading...
It'll be worth the wait ...

Met Office Forecast

Wales

Snow clearing to a clear and dry night. Icy.

Today:

This morning will see a band of snow, sometimes heavy, moving northeast across the country, trailed by scattered, possibly wintry, showers. Snow returning from the north this afternoon, though becoming lighter and more patchy. Cold with a risk of ice. Maximum Temperature 4C.

Tonight:

Last of the snow will clear south early this evening, leaving a cold but clear and dry night for most. Some cloud and scattered showers along coasts. Frosty and icy. Minimum Temperature -9C.

Monday:

A largely dry and sunny day, though the north may see the odd localised shower, and some cloud may develop inland during the afternoon. Maximum Temperature 6C.

Outlook for Tuesday to Thursday:

Tuesday starts largely dry, though a band of rain edging in from the southwest. Wednesday and Thursday cloudy with outbreaks of rain, possibly heavy, and strong winds.

Day 6-7 and Week 2:

Unsettled conditions look likely to dominate for this period, with low pressure across the UK. Therefore, this should, bring changeable weather to most of the country, with periods of rain, showers, and strong winds at times. While mild westerly and southwesterly winds are expected to be dominant for most of the period, occasional colder northerly winds are possible, bringing a chance of snowfall, likely confined to the far northern parts. Towards the end of the period, we may see high pressure bringing a higher than average chance of cold weather more widely with wintry outbreaks. However, there is a chance of drier than average conditions, which would bring an increased risk of frost and fog.

Week 3 and 4:

Confidence is low for this period, but current signals indicate a possible high pressure system around or near the UK during this period. This would likely bring cold northerly winds, producing colder than average temperatures and wintry outbreaks. The second half of February is likely to have a mixture of weather types, with periods of wet, windy and milder weather interspersed with drier, calmer, colder periods.

Met Office : Wales : 2021-01-24T02:57:05

Daylight : Brecon Beacons NP

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

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).

Moonlight : Brecon Beacons NP

Date Sunset Dusk Moon Rise Moon Set Dawn Sunrise % Full Max. Ht. Night Walk
Sun, 24-Jan 16:49 17:26 dusk 05:40 07:25 08:02 86 % 21:08 after dusk
Mon, 25-Jan 16:51 17:28 dusk 06:41 07:24 08:01 92 % 21:59 after dusk
Tue, 26-Jan 16:52 17:30 dusk dawn 07:22 08:00 96 % 22:53 all night
Wed, 27-Jan 16:54 17:31 dusk dawn 07:21 07:58 99 % 23:48 all night
Thu, 28-Jan 16:56 17:33 dusk dawn 07:20 07:57 100 % 00:43 all night
Fri, 29-Jan 16:58 17:35 17:39 dawn 07:19 07:55 98 % 01:37 before dawn
Sat, 30-Jan 17:00 17:36 19:01 dawn 07:17 07:54 94 % 02:28 before dawn
Sun, 31-Jan 17:01 17:38 20:23 dawn 07:16 07:52 88 % 03:18 before dawn
Mon, 01-Feb 17:03 17:40 21:45 dawn 07:14 07:51 79 % 04:07 before dawn
Tue, 02-Feb 17:05 17:41 23:07 dawn 07:13 07:49 69 % 04:56
Wed, 03-Feb 17:07 17:43 00:30 dawn 07:11 07:47 58 % 05:47
Thu, 04-Feb 17:09 17:45 01:54 dawn 07:10 07:45 47 % 06:39
Fri, 05-Feb 17:11 17:47 03:18 dawn 07:08 07:44 36 % 07:34
Sat, 06-Feb 17:13 17:48 04:37 07:06 07:42 25 % 08:32
Sun, 07-Feb 17:14 17:50 05:48 dawn 07:05 07:40 16 % 09:31
Mon, 08-Feb 17:16 17:52 06:46 dawn 07:03 07:38 9 % 10:30
Tue, 09-Feb 17:18 17:54 07:01 07:37 4 %
Wed, 10-Feb 17:20 17:55 07:00 07:35 1 %
Thu, 11-Feb 17:22 17:57 06:58 07:33 0 %
Fri, 12-Feb 17:24 17:59 dusk 18:05 06:56 07:31 2 % 13:10
Sat, 13-Feb 17:26 18:01 dusk 19:19 06:54 07:29 5 % 13:56
Sun, 14-Feb 17:27 18:02 dusk 20:31 06:52 07:27 11 % 14:40
Mon, 15-Feb 17:29 18:04 dusk 21:41 06:50 07:25 17 % 15:22
Tue, 16-Feb 17:31 18:06 dusk 22:50 06:49 07:23 25 % 16:03
Wed, 17-Feb 17:33 18:08 dusk 23:59 06:47 07:21 34 % 16:44
Thu, 18-Feb 17:35 18:09 dusk 01:08 06:45 07:19 43 % 17:27
Fri, 19-Feb 17:37 18:11 dusk 02:17 06:43 07:17 52 % 18:11
Sat, 20-Feb 17:38 18:13 dusk 03:24 06:41 07:15 62 % 18:58
Sun, 21-Feb 17:40 18:15 dusk 04:28 06:39 07:13 71 % 19:48
Mon, 22-Feb 17:42 18:16 dusk 05:24 06:37 07:11 79 % 20:40 after dusk
Tue, 23-Feb 17:44 18:18 dusk 06:11 06:35 07:09 87 % 21:35 after dusk
Wed, 24-Feb 17:46 18:20 dusk dawn 06:33 07:07 93 % 22:30 all night
Thu, 25-Feb 17:48 18:22 dusk dawn 06:30 07:04 98 % 23:24 all night
Fri, 26-Feb 17:49 18:23 dusk dawn 06:28 07:02 100 % 00:17 all night
Sat, 27-Feb 17:51 18:25 dusk dawn 06:26 07:00 99 % 01:09 all night
Sun, 28-Feb 17:53 18:27 19:25 dawn 06:24 06:58 96 % 02:00 before dawn
Mon, 01-Mar 17:55 18:29 20:50 dawn 06:22 06:56 90 % 02:50 before dawn
Tue, 02-Mar 17:57 18:30 22:15 dawn 06:20 06:53 82 % 03:42 before dawn
Wed, 03-Mar 17:58 18:32 23:41 dawn 06:18 06:51 73 % 04:35
Thu, 04-Mar 18:00 18:34 01:07 dawn 06:15 06:49 62 % 05:30
Fri, 05-Mar 18:02 18:36 02:29 dawn 06:13 06:47 50 % 06:27
Sat, 06-Mar 18:04 18:37 03:42 dawn 06:11 06:45 39 % 07:26
Sun, 07-Mar 18:05 18:39 04:43 06:09 06:42 29 % 08:24
Mon, 08-Mar 18:07 18:41 05:30 dawn 06:07 06:40 20 % 09:21
Tue, 09-Mar 18:09 18:43 06:04 06:38 12 %
Wed, 10-Mar 18:11 18:44 06:02 06:36 6 %
Thu, 11-Mar 18:12 18:46 06:00 06:33 2 %
Fri, 12-Mar 18:14 18:48 05:58 06:31 0 %
Sat, 13-Mar 18:16 18:49 05:55 06:29 0 %
Sun, 14-Mar 18:18 18:51 dusk 19:26 05:53 06:26 2 % 13:17
Mon, 15-Mar 18:19 18:53 dusk 20:36 05:51 06:24 6 % 13:58
Tue, 16-Mar 18:21 18:55 dusk 21:45 05:48 06:22 12 % 14:40
Wed, 17-Mar 18:23 18:56 dusk 22:54 05:46 06:19 19 % 15:22
Thu, 18-Mar 18:25 18:58 dusk 00:03 05:44 06:17 26 % 16:05
Fri, 19-Mar 18:26 19:00 dusk 01:11 05:41 06:15 35 % 16:51
Sat, 20-Mar 18:28 19:02 dusk 02:16 05:39 06:13 44 % 17:39
Sun, 21-Mar 18:30 19:03 dusk 03:15 05:37 06:10 54 % 18:30
Mon, 22-Mar 18:31 19:05 dusk 04:05 05:34 06:08 64 % 19:22
Tue, 23-Mar 18:33 19:07 dusk 04:45 05:32 06:06 73 % 20:16
Wed, 24-Mar 18:35 19:09 dusk 05:16 05:30 06:03 82 % 21:10 after dusk
Thu, 25-Mar 18:37 19:11 dusk dawn 05:27 06:01 90 % 22:03 all night
Fri, 26-Mar 18:38 19:12 dusk dawn 05:25 05:59 96 % 22:55 all night
Sat, 27-Mar 18:40 19:14 dusk dawn 06:22 06:56 99 % 23:47 all night
Sun, 28-Mar 19:42 20:16 dusk dawn 06:20 06:54 100 % 01:38 all night
Mon, 29-Mar 19:43 20:18 20:49 dawn 06:18 06:52 98 % 02:30 before dawn
Tue, 30-Mar 19:45 20:19 22:18 dawn 06:15 06:50 93 % 03:24 before dawn
Wed, 31-Mar 19:47 20:21 23:48 dawn 06:13 06:47 86 % 04:21 before dawn
Thu, 01-Apr 19:49 20:23 01:15 dawn 06:11 06:45 76 % 05:19 before dawn
Fri, 02-Apr 19:50 20:25 02:34 dawn 06:08 06:43 66 % 06:19
Sat, 03-Apr 19:52 20:27 03:41 dawn 06:06 06:40 55 % 07:19
Sun, 04-Apr 19:54 20:28 04:32 06:04 06:38 44 % 08:17
Mon, 05-Apr 19:55 20:30 05:09 dawn 06:01 06:36 33 % 09:11
Tue, 06-Apr 19:57 20:32 05:37 dawn 05:59 06:34 24 % 10:02
Wed, 07-Apr 19:59 20:34 05:56 06:31 16 %
Thu, 08-Apr 20:01 20:36 05:54 06:29 9 %
Fri, 09-Apr 20:02 20:37 05:52 06:27 4 %
Sat, 10-Apr 20:04 20:39 05:49 06:25 1 %
Sun, 11-Apr 20:06 20:41 05:47 06:22 0 % 12:56
Mon, 12-Apr 20:07 20:43 05:45 06:20 1 % 13:37
Tue, 13-Apr 20:09 20:45 dusk 21:42 05:42 06:18 3 % 14:19
Wed, 14-Apr 20:11 20:47 dusk 22:52 05:40 06:16 7 % 15:02
Thu, 15-Apr 20:12 20:48 dusk 00:01 05:38 06:14 13 % 15:47
Fri, 16-Apr 20:14 20:50 dusk 01:07 05:35 06:12 20 % 16:34
Sat, 17-Apr 20:16 20:52 dusk 02:08 05:33 06:09 28 % 17:23
Sun, 18-Apr 20:18 20:54 dusk 03:01 05:31 06:07 37 % 18:14
Mon, 19-Apr 20:19 20:56 dusk 03:44 05:29 06:05 47 % 19:06
Tue, 20-Apr 20:21 20:58 dusk 04:17 05:26 06:03 57 % 19:59
Wed, 21-Apr 20:23 21:00 dusk 04:44 05:24 06:01 67 % 20:51
Thu, 22-Apr 20:24 21:01 dusk 05:05 05:22 05:59 77 % 21:42 after dusk
Fri, 23-Apr 20:26 21:03 dusk dawn 05:20 05:57 86 % 22:32 all night
Sat, 24-Apr 20:28 21:05 dusk dawn 05:17 05:55 93 % 23:23 all night
Sun, 25-Apr 20:29 21:07 dusk dawn 05:15 05:53 98 % 00:14 all night
Mon, 26-Apr 20:31 21:09 dusk dawn 05:13 05:51 100 % 01:08 all night
Tue, 27-Apr 20:33 21:11 21:15 dawn 05:11 05:49 99 % 02:04 before dawn
Wed, 28-Apr 20:34 21:13 22:47 dawn 05:09 05:47 95 % 03:04 before dawn
Thu, 29-Apr 20:36 21:15 00:14 dawn 05:07 05:45 88 % 04:06 before dawn
Fri, 30-Apr 20:38 21:17 01:30 dawn 05:04 05:43 80 % 05:08 before dawn
Sat, 01-May 20:39 21:18 02:29 dawn 05:02 05:41 70 % 06:09
Sun, 02-May 20:41 21:20 03:12 dawn 05:00 05:39 59 % 07:06
Mon, 03-May 20:43 21:22 03:43 04:58 05:38 48 % 07:59
Tue, 04-May 20:44 21:24 04:06 dawn 04:56 05:36 38 % 08:48
Wed, 05-May 20:46 21:26 04:24 dawn 04:54 05:34 28 % 09:33
Thu, 06-May 20:48 21:28 04:39 dawn 04:52 05:32 20 % 10:15
Fri, 07-May 20:49 21:30 04:50 05:31 13 %
Sat, 08-May 20:51 21:32 04:48 05:29 7 %
Sun, 09-May 20:52 21:33 04:46 05:27 3 %
Mon, 10-May 20:54 21:35 04:44 05:26 1 %
Tue, 11-May 20:56 21:37 04:43 05:24 0 % 13:00
Wed, 12-May 20:57 21:39 dusk 21:51 04:41 05:22 1 % 13:44
Thu, 13-May 20:59 21:41 dusk 22:59 04:39 05:21 4 % 14:30
Fri, 14-May 21:00 21:42 dusk 00:02 04:37 05:19 9 % 15:19
Sat, 15-May 21:02 21:44 dusk 00:58 04:36 05:18 15 % 16:10
Sun, 16-May 21:03 21:46 dusk 01:44 04:34 05:16 23 % 17:01
Mon, 17-May 21:05 21:48 dusk 02:20 04:32 05:15 32 % 17:53
Tue, 18-May 21:06 21:49 dusk 02:48 04:31 05:14 41 % 18:44
Wed, 19-May 21:08 21:51 dusk 03:10 04:29 05:12 52 % 19:34
Thu, 20-May 21:09 21:53 dusk 03:29 04:27 05:11 63 % 20:23
Fri, 21-May 21:11 21:54 dusk 03:45 04:26 05:10 73 % 21:12
Sat, 22-May 21:12 21:56 dusk 04:02 04:25 05:09 83 % 22:01 after dusk
Sun, 23-May 21:13 21:58 dusk 04:19 04:23 05:08 91 % 22:52 after dusk
Mon, 24-May 21:15 21:59 dusk dawn 04:22 05:06 97 % 23:46 all night
Tue, 25-May 21:16 22:01 dusk dawn 04:20 05:05 100 % 00:43 all night
Wed, 26-May 21:17 22:02 dusk dawn 04:19 05:04 100 % 01:45 all night
Thu, 27-May 21:18 22:04 23:06 dawn 04:19 05:04 97 % 02:49 before dawn
Fri, 28-May 21:19 22:05 00:16 dawn 04:17 05:03 91 % 03:53 before dawn
Sat, 29-May 21:20 22:06 01:08 dawn 04:16 05:02 83 % 04:54 before dawn
Sun, 30-May 21:21 22:07 01:45 dawn 04:15 05:01 74 % 05:51
Mon, 31-May 21:23 22:09 02:11 dawn 04:14 05:00 64 % 06:43
Tue, 01-Jun 21:24 22:10 02:31 dawn 04:13 04:59 53 % 07:30
Wed, 02-Jun 21:25 22:11 02:47 dawn 04:12 04:59 43 % 08:14
Thu, 03-Jun 21:26 22:13 03:01 dawn 04:11 04:58 33 % 08:55
Fri, 04-Jun 21:27 22:14 03:14 dawn 04:10 04:57 25 % 09:36
Sat, 05-Jun 21:28 22:15 03:27 dawn 04:10 04:57 17 % 10:17
Sun, 06-Jun 21:29 22:16 03:42 dawn 04:09 04:56 10 % 10:58
Mon, 07-Jun 21:30 22:17 03:59 dawn 04:08 04:56 5 % 11:42
Tue, 08-Jun 21:30 22:18 04:08 04:55 2 %
Wed, 09-Jun 21:31 22:19 04:07 04:55 0 %
Thu, 10-Jun 21:32 22:20 04:07 04:55 0 % 13:16
Fri, 11-Jun 21:33 22:21 dusk 22:54 04:06 04:54 2 % 14:06
Sat, 12-Jun 21:33 22:22 dusk 23:43 04:06 04:54 6 % 14:58
Sun, 13-Jun 21:34 22:22 dusk 00:22 04:06 04:54 11 % 15:50
Mon, 14-Jun 21:34 22:23 dusk 00:52 04:05 04:54 19 % 16:41
Tue, 15-Jun 21:35 22:23 dusk 01:16 04:05 04:54 27 % 17:31
Wed, 16-Jun 21:35 22:24 dusk 01:35 04:05 04:54 37 % 18:19
Thu, 17-Jun 21:36 22:24 dusk 01:52 04:05 04:54 48 % 19:06
Fri, 18-Jun 21:36 22:25 dusk 02:07 04:05 04:54 59 % 19:54
Sat, 19-Jun 21:37 22:25 dusk 02:24 04:05 04:54 70 % 20:42
Sun, 20-Jun 21:37 22:25 dusk 02:42 04:06 04:54 80 % 21:32 after dusk
Mon, 21-Jun 21:37 22:26 dusk 03:04 04:06 04:55 89 % 22:27 after dusk
Tue, 22-Jun 21:37 22:26 dusk 03:33 04:06 04:55 95 % 23:25 after dusk
Wed, 23-Jun 21:37 22:26 dusk dawn 04:07 04:55 99 % 00:27 all night
Thu, 24-Jun 21:37 22:26 dusk dawn 04:07 04:56 100 % 01:32 all night
Fri, 25-Jun 21:37 22:26 22:55 dawn 04:08 04:56 98 % 02:36 before dawn
Sat, 26-Jun 21:37 22:26 23:40 dawn 04:08 04:56 93 % 03:36 before dawn
Sun, 27-Jun 21:37 22:25 00:12 dawn 04:09 04:57 86 % 04:32 before dawn
Mon, 28-Jun 21:37 22:25 00:35 dawn 04:09 04:58 78 % 05:22 before dawn
Tue, 29-Jun 21:37 22:25 00:53 dawn 04:10 04:58 69 % 06:09
Wed, 30-Jun 21:36 22:24 01:07 dawn 04:11 04:59 59 % 06:52
Thu, 01-Jul 21:36 22:24 01:21 dawn 04:12 05:00 49 % 07:34
Fri, 02-Jul 21:36 22:23 01:34 dawn 04:13 05:00 39 % 08:15
Sat, 03-Jul 21:35 22:23 01:48 dawn 04:14 05:01 30 % 08:56
Sun, 04-Jul 21:35 22:22 02:04 dawn 04:15 05:02 22 % 09:39
Mon, 05-Jul 21:34 22:22 02:24 dawn 04:16 05:03 15 % 10:24
Tue, 06-Jul 21:34 22:21 02:49 dawn 04:17 05:04 9 % 11:11
Wed, 07-Jul 21:33 22:20 03:22 dawn 04:18 05:05 4 % 12:01
Thu, 08-Jul 21:32 22:19 04:05 dawn 04:19 05:06 1 %
Fri, 09-Jul 21:32 22:18 04:20 05:07 0 % 12:53
Sat, 10-Jul 21:31 22:17 dusk 22:23 04:22 05:08 1 % 13:45
Sun, 11-Jul 21:30 22:16 dusk 22:56 04:23 05:09 4 % 14:37
Mon, 12-Jul 21:29 22:15 dusk 23:21 04:24 05:10 9 % 15:28
Tue, 13-Jul 21:28 22:14 dusk 23:41 04:26 05:11 16 % 16:17
Wed, 14-Jul 21:27 22:13 dusk 23:59 04:27 05:13 24 % 17:05
Thu, 15-Jul 21:26 22:11 dusk 00:14 04:29 05:14 34 % 17:51
Fri, 16-Jul 21:25 22:10 dusk 00:30 04:30 05:15 45 % 18:38
Sat, 17-Jul 21:24 22:09 dusk 00:46 04:32 05:16 56 % 19:27
Sun, 18-Jul 21:23 22:07 dusk 01:06 04:33 05:18 68 % 20:18
Mon, 19-Jul 21:22 22:06 dusk 01:31 04:35 05:19 78 % 21:12 after dusk
Tue, 20-Jul 21:21 22:04 dusk 02:05 04:36 05:20 87 % 22:11 after dusk
Wed, 21-Jul 21:19 22:03 dusk 02:52 04:38 05:22 94 % 23:13 after dusk
Thu, 22-Jul 21:18 22:01 dusk 03:55 04:40 05:23 98 % 00:17 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!

Met Office Mountain Forecast

Issued: 0600 on 2021-01-24 for Brecon Beacons

Today

Cloudy with outbreaks of snow, occasionally heavy at first. Cold

Summary Cloudy with outbreaks of snow spreading east, becoming persistent and heavy for a time around dawn. A cloudy day with outbreaks of snow continuing before clearing southeastwards during the late afternoon and evening with clear spells developing.
Chance of Cloud free tops Little chance through much of the day but improving in evening.
Ground conditions
Visibility Periods of persistent cloud above 450m and patches below through the morning but cloud expected to be occasional above 600m during the evening. Away from cloud, good falling to just a few kilometres in snow and less than a kilometre in heavier snow.
Heavy Snow: Medium Likelihood
Severe Chill Effect: Medium Likelihood
Poor Visibility: High Likelihood
060708 091011 121314 151617 181920 212223
Weather Light snow Fog Light snow Light snow Partly cloudy (night) Clear night
Rain 80% 70% 60% 50% 40% 10%
Temp (tops) -2 -2 -2 -2 -3 -4
Wind (tops) 19 8 9 12 14 11
Freezing Level 100m 100m 200m 200m 100m 00m
Day 1

Mainly dry with long clear or sunny spells, perhaps just the odd light snow shower.

Ice Less than 300m
Visibility Only small amounts of cloud expected below the summits. Away from cloud, very good or excellent with good panoramic views of surrounding snow covered hills, perhaps falling briefly to several kilometres in any snow showers. Glare off lying snow possible.
Wind Westerly or southwesterly 15-20mph, decreasing 10mph in afternoon.
Temp Minus 3 Celsius (at high level)
Day 2

Cold, cloudy start with outbreaks of snow developing, turning increasingly to rain, then brighter later with a few showers. Light southerly winds. Thaw of lying snow as freezing level rises above summits.

Day 3

Mainly dry, bright morning but cloud increasing and outbreaks of occasionally heavy rain through the afternoon and evening. Occasionally fresh southerly winds. Freezing level rising above summits.

Day 4

Cloudy with outbreaks of occasionally heavy rain. Strong southwesterly winds, veering westerly later. Freezing level above the summits.

Data: Met Office