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Notice 21-10-2026. Over the coming 3 weeks we will be migrating to a newer version of Bigsalty. Whilst this happens we have removed login / user capabilities and some current weather functionality.

Llandegfedd Reservoir Weather Forecast

GFS 50km atmospheric forecast data for Llandegfedd Reservoir.

Saturday 31 October (Today)

Wind Gust Rain Cloud Temp Chill [Wind rating]
00:00
5.5kts
6.5kts
-1mm
-1%
10°C
9°C
  • ●
  • ●
  • ●
03:00
6.3kts
6.8kts
0mm
1%
9°C
6°C
  • ●
  • ●
  • ●
06:00
6.5kts
6.9kts
0mm
3%
9°C
6°C
  • ●
  • ●
  • ●
09:00
6kts
6.5kts
0mm
8%
11°C
7°C
  • ●
  • ●
  • ●
12:00
4.4kts
5.4kts
0mm
5%
14°C
12°C
  • ●
  • ●
  • ●
15:00
3.5kts
4.7kts
0mm
0%
13°C
13°C
  • ●
  • ●
  • ●
18:00
3.8kts
4.5kts
0mm
0%
10°C
10°C
  • ●
  • ●
  • ●
21:00
3.8kts
4.7kts
0mm
0%
10°C
9°C
  • ●
  • ●
  • ●

Sunrise: 07:02 / Sunset: 16:48 Twilight: 06:27 / 17:23

Sunday 1 November (Tomorrow)

Wind Gust Rain Cloud Temp Chill [Wind rating]
00:00
3.6kts
4.6kts
0mm
0%
9°C
9°C
  • ●
  • ●
  • ●
03:00
4.1kts
5.2kts
0mm
0%
9°C
8°C
  • ●
  • ●
  • ●
06:00
5.3kts
6.8kts
0mm
0%
9°C
8°C
  • ●
  • ●
  • ●
09:00
5.4kts
9kts
0mm
0%
11°C
9°C
  • ●
  • ●
  • ●
12:00
8.9kts
13.3kts
0mm
16%
12°C
11°C
  • ●
  • ●
  • ●
15:00
11.1kts
14.9kts
0mm
96%
13°C
12°C
  • ●
  • ●
  • ●
18:00
10.4kts
18.9kts
0mm
74%
12°C
11°C
  • ●
  • ●
  • ●
21:00
11kts
19.9kts
0mm
73%
11°C
10°C
  • ●
  • ●
  • ●

Sunrise: 07:04 / Sunset: 16:46 Twilight: 06:29 / 17:21

Monday 2 November

Wind Gust Rain Cloud Temp Chill [Wind rating]
00:00
11.4kts
16.1kts
0.1mm
51%
9°C
4°C
  • ●
  • ●
  • ●
03:00
10.5kts
16.9kts
0mm
5%
9°C
2°C
  • ●
  • ●
  • ●
06:00
10kts
19.8kts
0mm
16%
9°C
2°C
  • ●
  • ●
  • ●
09:00
11kts
21.9kts
0mm
44%
10°C
3°C
  • ●
  • ●
  • ●
12:00
13.5kts
17.9kts
0mm
30%
12°C
6°C
  • ●
  • ●
  • ●
15:00
13.7kts
18.4kts
0mm
7%
12°C
10°C
  • ●
  • ●
  • ●
18:00
12.1kts
20.3kts
0mm
12%
11°C
6°C
  • ●
  • ●
  • ●
21:00
11.4kts
19.7kts
0mm
1%
8°C
3°C
  • ●
  • ●
  • ●

Sunrise: 07:06 / Sunset: 16:44 Twilight: 06:30 / 17:20

Tuesday 3 November

Wind Gust Rain Cloud Temp Chill [Wind rating]
00:00
10.2kts
17.3kts
0mm
3%
8°C
2°C
  • ●
  • ●
  • ●
03:00
10kts
20.3kts
0mm
24%
9°C
2°C
  • ●
  • ●
  • ●
06:00
10.5kts
20.5kts
0mm
27%
9°C
2°C
  • ●
  • ●
  • ●
09:00
11.3kts
21.8kts
0mm
29%
10°C
3°C
  • ●
  • ●
  • ●
12:00
13.6kts
20.2kts
0mm
24%
11°C
6°C
  • ●
  • ●
  • ●
15:00
14.9kts
21.4kts
0mm
3%
11°C
10°C
  • ●
  • ●
  • ●
18:00
13.2kts
23.9kts
0mm
7%
10°C
5°C
  • ●
  • ●
  • ●
21:00
16.5kts
26.8kts
0mm
90%
11°C
6°C
  • ●
  • ●
  • ●

Sunrise: 07:07 / Sunset: 16:43 Twilight: 06:32 / 17:18

Wednesday 4 November

Wind Gust Rain Cloud Temp Chill [Wind rating]
00:00
13.1kts
22.6kts
0.1mm
76%
10°C
5°C
  • ●
  • ●
  • ●
03:00
13.6kts
25.2kts
0.1mm
35%
10°C
5°C
  • ●
  • ●
  • ●
06:00
12.8kts
22.4kts
0.1mm
26%
9°C
3°C
  • ●
  • ●
  • ●
09:00
12.7kts
23.7kts
0mm
21%
10°C
4°C
  • ●
  • ●
  • ●
12:00
16.7kts
21.6kts
0mm
26%
12°C
10°C
  • ●
  • ●
  • ●
15:00
15.2kts
20.7kts
0mm
5%
11°C
10°C
  • ●
  • ●
  • ●
18:00
12.5kts
22.7kts
0mm
3%
9°C
4°C
  • ●
  • ●
  • ●
21:00
12.4kts
23.4kts
0mm
2%
8°C
2°C
  • ●
  • ●
  • ●

Sunrise: 07:09 / Sunset: 16:41 Twilight: 06:34 / 17:16

Thursday 5 November

Wind Gust Rain Cloud Temp Chill [Wind rating]
00:00
11.2kts
19kts
0mm
2%
8°C
1°C
  • ●
  • ●
  • ●
03:00
11kts
21.1kts
0mm
15%
8°C
1°C
  • ●
  • ●
  • ●
06:00
12.7kts
21kts
0mm
24%
9°C
2°C
  • ●
  • ●
  • ●
09:00
16.5kts
21.6kts
0mm
37%
10°C
5°C
  • ●
  • ●
  • ●
12:00
14.9kts
20.5kts
0mm
25%
11°C
5°C
  • ●
  • ●
  • ●
15:00
14.4kts
19.4kts
0mm
3%
11°C
10°C
  • ●
  • ●
  • ●
18:00
13.5kts
22kts
0mm
5%
10°C
6°C
  • ●
  • ●
  • ●
21:00
11.4kts
21.4kts
0mm
1%
8°C
3°C
  • ●
  • ●
  • ●

Sunrise: 07:11 / Sunset: 16:39 Twilight: 06:35 / 17:15

Friday 6 November

Wind Gust Rain Cloud Temp Chill [Wind rating]
00:00
10.4kts
15.2kts
0mm
4%
8°C
2°C
  • ●
  • ●
  • ●
03:00
9.5kts
13.7kts
0mm
25%
8°C
1°C
  • ●
  • ●
  • ●
06:00
9kts
15kts
0mm
33%
8°C
2°C
  • ●
  • ●
  • ●
09:00
9.6kts
18.8kts
0mm
52%
10°C
3°C
  • ●
  • ●
  • ●
12:00
12.4kts
16.2kts
0mm
51%
12°C
6°C
  • ●
  • ●
  • ●
15:00
11.5kts
14.9kts
0mm
48%
11°C
10°C
  • ●
  • ●
  • ●
18:00
10.3kts
16.5kts
0mm
38%
10°C
7°C
  • ●
  • ●
  • ●
21:00
11.3kts
19kts
0mm
22%
10°C
6°C
  • ●
  • ●
  • ●

Sunrise: 07:13 / Sunset: 16:37 Twilight: 06:37 / 17:13

Saturday 7 November

Wind Gust Rain Cloud Temp Chill [Wind rating]
00:00
9.6kts
18.8kts
0mm
23%
10°C
5°C
  • ●
  • ●
  • ●
03:00
8.8kts
15.8kts
0mm
43%
10°C
5°C
  • ●
  • ●
  • ●
06:00
9.3kts
15.4kts
0mm
31%
10°C
5°C
  • ●
  • ●
  • ●
09:00
9.7kts
16.5kts
0mm
11%
10°C
5°C
  • ●
  • ●
  • ●
12:00
10.9kts
15.8kts
0mm
13%
11°C
6°C
  • ●
  • ●
  • ●
15:00
10kts
15.1kts
0mm
21%
11°C
6°C
  • ●
  • ●
  • ●
18:00
9kts
14.1kts
0.1mm
19%
10°C
5°C
  • ●
  • ●
  • ●
21:00
8.2kts
13.2kts
0mm
8%
10°C
5°C
  • ●
  • ●
  • ●

Sunrise: 07:14 / Sunset: 16:36 Twilight: 06:38 / 17:12

Sunday 8 November

Wind Gust Rain Cloud Temp Chill [Wind rating]
00:00
7.7kts
11.5kts
0.1mm
8%
10°C
5°C
  • ●
  • ●
  • ●
03:00
8kts
12.6kts
0mm
8%
9°C
4°C
  • ●
  • ●
  • ●
06:00
8kts
12.5kts
0.1mm
9%
9°C
4°C
  • ●
  • ●
  • ●
09:00
8.5kts
13kts
0mm
10%
10°C
4°C
  • ●
  • ●
  • ●
12:00
9.5kts
14.1kts
0.1mm
18%
10°C
5°C
  • ●
  • ●
  • ●
15:00
9.9kts
14.6kts
0mm
44%
10°C
5°C
  • ●
  • ●
  • ●
18:00
9.6kts
14.9kts
0mm
30%
10°C
4°C
  • ●
  • ●
  • ●
21:00
8.9kts
13.1kts
0mm
7%
9°C
4°C
  • ●
  • ●
  • ●

Sunrise: 07:16 / Sunset: 16:34 Twilight: 06:40 / 17:10