Llyn Y Fan Fawr (Powys) weather

Forecast days

Sunny intervals changing to fog in the afternoon.
Sunrise iconSunrise:
Sunset iconSunset:
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7 day forecast for Llyn Y Fan Fawr

Today (22 January 2025)
Time
14:00
15:00
16:00
17:00
18:00
19:00
20:00
21:00
22:00
23:00
Weather symbols
Sunny intervals
Mist
Fog
Fog
Fog
Fog
Fog
Mist
Mist
Partly cloudy night
Chance of precipitation
20%
10%
20%
30%
50%
50%
30%
20%
10%
10%
Temperature
Feels like temperature (°C)
-1°
-1°
-1°
-2°
-2°
-2°
-3°
-3°
-3°
-3°
Wind direction and speed
NW
7
NW
7
WNW
7
W
7
W
8
W
9
W
9
W
9
W
9
WSW
10
Wind gust (mph)
10
9
9
10
11
12
10
11
11
12
Visibility
G
G
P
VP
VP
VP
VP
VP
P
P
Humidity
95%
96%
97%
99%
99%
99%
99%
99%
99%
98%
UV
1
1
1
-
-
-
-
-
-
-
Thursday (23 January 2025)
Time
00:00
01:00
02:00
03:00
04:00
05:00
06:00
07:00
08:00
09:00
10:00
11:00
12:00
13:00
14:00
15:00
16:00
17:00
18:00
19:00
20:00
21:00
22:00
23:00
Weather symbols
Partly cloudy night
Mist
Mist
Fog
Light shower night
Light shower night
Fog
Light rain
Heavy rain
Heavy rain
Heavy rain
Heavy shower day
Sleet shower day
Light snow shower day
Light snow shower day
Sunny intervals
Sunny intervals
Partly cloudy night
Partly cloudy night
Partly cloudy night
Partly cloudy night
Partly cloudy night
Overcast
Heavy rain
Chance of precipitation
10%
10%
<5%
30%
50%
60%
50%
60%
≥95%
≥95%
≥95%
90%
90%
70%
60%
40%
20%
10%
10%
<5%
<5%
10%
30%
80%
Temperature (°C)
Feels like temperature (°C)
-3°
-3°
-4°
-4°
-4°
-4°
-4°
-4°
-4°
-5°
-4°
-4°
-5°
-6°
-5°
-5°
-6°
-6°
-6°
-6°
-5°
-5°
-5°
-5°
Wind direction and speed (mph)
WSW
11
WSW
11
SW
12
SW
13
SW
14
SW
15
SW
17
SSW
19
SSW
22
SSW
25
SSW
28
SW
28
WSW
27
W
28
W
27
W
26
W
24
WSW
21
WSW
19
WSW
18
WSW
17
SW
17
SSW
19
S
22
Wind gust (mph)
13
13
15
16
17
19
22
27
34
40
48
47
47
45
44
41
34
28
23
21
19
21
25
32
Visibility (description)
G
G
P
P
VP
VP
VP
VP
VP
VP
VP
VP
G
VG
E
E
E
E
E
E
E
E
E
VG
Humidity
98%
98%
99%
98%
99%
99%
100%
100%
100%
100%
100%
99%
95%
94%
90%
87%
86%
87%
87%
85%
85%
85%
88%
94%
UV
-
-
-
-
-
-
-
-
1
1
1
1
1
1
1
1
1
-
-
-
-
-
-
-
Friday (24 January 2025)
Time
00:00
03:00
06:00
09:00
12:00
15:00
18:00
21:00
Weather symbols
Heavy rain
Heavy rain
Light shower night
Sunny intervals
Sunny day
Sunny intervals
Partly cloudy night
Partly cloudy night
Chance of precipitation
≥95%
≥95%
90%
10%
10%
20%
30%
20%
Temperature (°C)
Feels like temperature (°C)
-5°
-1°
-4°
-4°
-4°
-6°
-6°
Wind direction and speed (mph)
S
27
S
39
SSW
42
WSW
36
WSW
32
WSW
25
WSW
19
WSW
16
Wind gust (mph)
56
63
62
53
49
38
27
18
Visibility (description)
P
VP
VP
E
E
E
E
E
Humidity
98%
99%
100%
85%
78%
71%
86%
87%
UV
-
-
-
1
1
1
-
-
Saturday (25 January 2025)
Time
00:00
03:00
06:00
09:00
12:00
15:00
18:00
21:00
Weather symbols
Partly cloudy night
Partly cloudy night
Partly cloudy night
Sunny intervals
Sunny intervals
Light shower day
Light shower night
Light shower night
Chance of precipitation
30%
10%
10%
10%
10%
50%
60%
60%
Temperature (°C)
-1°
Feels like temperature (°C)
-5°
-4°
-5°
-4°
-3°
-3°
-5°
-5°
Wind direction and speed (mph)
WSW
12
WSW
9
SW
8
SSW
8
SSW
11
SSW
14
S
14
SSW
13
Wind gust (mph)
13
11
10
14
20
24
22
20
Visibility (description)
E
E
E
E
E
VG
VG
VP
Humidity
87%
88%
87%
87%
83%
84%
94%
99%
UV
-
-
-
1
1
1
-
-
Sunday (26 January 2025)
Time
00:00
03:00
06:00
09:00
12:00
15:00
18:00
21:00
Weather symbols
Fog
Mist
Fog
Light rain
Heavy rain
Heavy rain
Light shower night
Light rain
Chance of precipitation
40%
10%
10%
60%
≥95%
≥95%
80%
70%
Temperature (°C)
Feels like temperature (°C)
-6°
-5°
-6°
-7°
-6°
-4°
-3°
-3°
Wind direction and speed (mph)
SW
13
SSW
12
S
18
SSE
28
SSE
35
SSE
30
S
25
SSW
25
Wind gust (mph)
19
22
36
50
55
47
43
41
Visibility (description)
P
VP
P
VP
VP
VP
P
G
Humidity
99%
99%
99%
99%
98%
99%
97%
95%
UV
-
-
-
1
1
1
-
-
Monday (27 January 2025)
Time
00:00
03:00
06:00
09:00
12:00
15:00
18:00
21:00
Weather symbols
Light rain
Light rain
Light rain
Light shower day
Light shower day
Overcast
Overcast
Light rain
Chance of precipitation
60%
60%
50%
50%
60%
40%
50%
60%
Temperature (°C)
Feels like temperature (°C)
-3°
-3°
-3°
-3°
-2°
-2°
-2°
-3°
Wind direction and speed (mph)
SSW
24
SSW
24
SSW
23
SSW
22
SW
21
SSW
20
SSW
17
SW
16
Wind gust (mph)
43
41
43
45
45
42
39
37
Visibility (description)
G
G
G
G
G
G
G
M
Humidity
95%
93%
92%
90%
84%
83%
88%
90%
UV
-
-
-
1
1
1
-
-
Tuesday (28 January 2025)
Time
00:00
03:00
06:00
09:00
12:00
15:00
18:00
21:00
Weather symbols
Light rain
Drizzle
Overcast
Sunny intervals
Sunny intervals
Sunny intervals
Cloudy
Overcast
Chance of precipitation
60%
50%
50%
50%
40%
20%
20%
40%
Temperature (°C)
Feels like temperature (°C)
-3°
-3°
-3°
-3°
-2°
-2°
-3°
-4°
Wind direction and speed (mph)
SW
16
WSW
15
WSW
15
W
16
W
17
W
15
WSW
13
SW
12
Wind gust (mph)
34
34
33
35
37
34
28
30
Visibility (description)
M
M
M
G
G
G
VG
VG
Humidity
92%
92%
92%
91%
88%
83%
88%
90%
UV
-
-
-
1
1
1
-
-

UK video forecast

Llyn Y Fan Fawr weather map

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Wales weather forecast

Headline:

Variable cloud bringing some sunshine, but some light rain too.

Today:

A cloudy morning with hill fog and patchy light rain lingering in places. Turning brighter from the west through the day, with occasional breaks to sunshine into the afternoon, though the odd scattered showers is possible too. Maximum temperature 7 °C.

Tonight:

Turning chilly beneath clear skies with a frost forming in rural parts, and some patchy fog in places too. Scattered showers arrive in the southwest by morning. Minimum temperature 0 °C.

Thursday:

A breezy day, with showers spreading rapidly eastwards, heavy at times. Brighter skies to follow, with sunshine later in the afternoon, but turning chilly beneath clear skies into the evening. Maximum temperature 8 °C.

Outlook for Friday to Sunday:

Storm Éowyn brings wet and very windy conditions on Friday with coastal gales likely. Briefly more settled over the weekend, though still breezy at times with further scattered showers.

Updated:

UK long range weather forecast

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