Llyn Y Fan Fawr (Powys) weather

Forecast days

Six day forecast for Llyn Y Fan Fawr

Time 00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
Weather symbols Cloudy Cloudy Overcast Cloudy Cloudy Cloudy Partly cloudy (night) Partly cloudy (night)
Chance of precipitation
10% 10% 10% 10% 10% <5% <5% <5%
-7° -7° -7° -6° -4° -2° -3° -5°
NNE 25
NNE 23
NNE 22
NNE 23
NNE 22
NNE 21
NNE 14
N 10
35 34 32 33 34 32 21 17
M G G G VG VG VG VG
Humidity
95% 95% 94% 91% 75% 67% 81% 93%
UV
- - - 1 2 1 - -
Time 00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
Weather symbols Clear night Cloudy Cloudy Overcast Overcast Light rain Light rain Cloudy
Chance of precipitation
<5% 10% 10% 10% 20% 50% 50% 10%
-1°
-3°
-3°
-5° -5° -7° -4° -2° -1° -1° -2°
NNW 6
WSW 3
SW 7
SSW 11
SW 15
SW 15
WNW 13
NW 9
9 5 10 18 26 26 22 14
VG VG G VG G M M G
Humidity
93% 95% 96% 92% 88% 96% 98% 97%
UV
- - - 1 1 1 - -
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) Cloudy Cloudy Cloudy Overcast Cloudy Overcast
Chance of precipitation
<5% <5% 10% 10% 10% 10% 10% 10%
-1°
-3° -4° -3° -1° -1° -2°
WNW 7
WNW 6
WSW 5
SSE 5
SSW 9
SSW 13
SSW 13
SSW 17
11 9 7 9 16 22 21 27
G G G G VG VG VG G
Humidity
97% 98% 97% 94% 83% 79% 87% 92%
UV
- - - 1 2 1 - -
Time 00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
Weather symbols Overcast Light rain Light rain Heavy rain Heavy rain Heavy shower (day) Light shower (night) Cloudy
Chance of precipitation
20% 60% 60% 80% 90% 80% 40% 20%
-2° -1° -1° -3° -4°
SSW 19
SSW 21
SSW 22
SW 19
WSW 17
WSW 16
WSW 14
WSW 13
31 35 37 33 31 30 24 22
M M P M M G VG VG
Humidity
97% 98% 98% 97% 94% 89% 92% 93%
UV
- - - 1 1 1 - -
Time 00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
Weather symbols Light snow shower (night) Cloudy Cloudy Light snow shower (day) Cloudy Heavy snow shower (day) Light snow shower (night) Light snow
Chance of precipitation
30% 20% 20% 40% 20% 60% 40% 60%
-1°
-5° -5° -5° -5° -3° -4° -5° -6°
SW 13
SSW 13
SW 13
WSW 13
W 12
W 12
NNW 10
W 11
22 21 21 22 24 22 17 18
G G G G G G G G
Humidity
94% 95% 95% 92% 84% 85% 92% 95%
UV
- - - 1 1 1 - -

UK video forecast

WARNING
Flood alerts icon
Flood alerts in force for Wales
Flood alerts in force for Wales

Wales weather forecast

Headline:

Rain moving into the south today.

Today:

Fog patches will gradually lift and clear this morning, giving a few bright spells at first. However, skies will quickly cloud over, with a spell of persistent rain in the south from late morning. Feeling chilly. Maximum temperature 8 °C.

Tonight:

Cloudy at first tonight, but skies will clear in the early hours. A patchy frost will develop and the wind will strengthen. Minimum temperature 0 °C.

Monday:

A bright and breezy day. Some cloud will bubble up in the afternoon, but it should stay dry with plenty of sunny spells. Feeling pleasant in the sunshine. Maximum temperature 9 °C.

Outlook for Tuesday to Thursday:

A dry start on Tuesday with increasing amounts of cloud, before rain arrives later. Dry on Wednesday with sunny spells. Cloudy on Thursday with rain, heavy at times and breezy.

Updated:

UK long range weather forecast

A broad band of cloud and rain likely spreading across much of the UK through Thursday morning, windy at times particularly in the northwest. Likely turning increasingly showery across north-western areas, as some drier spells develop in the east. From Friday and through the weekend, generally unsettled conditions with areas of showers sometimes banding together for longer spells of rain, this heavy at times. Clearer spells overnight with some frost or fog patches developing. Into the new week conditions move to occasional frontal systems affecting further western areas with occasionally more settled spells developing in eastern areas as settled conditions spread out from northern Europe. Remaining around average temperatures for the time of year though some short-lived colder interludes remain likely.

Updated:

Increasing likelihood that a more blocked weather pattern will persist with more settled conditions most likely affecting the east with winds favouring a more south or south-westerly direction up to mid-March, bringing most rainfall across western areas and more typically drier to the east. Late in the period location of this more settled block liable to migrate over the UK possibly leading to more northerly or easterly winds, but any dip in temperatures mitigated by increasing day lengths into late March. Temperatures are likely to be near or slightly above normal overall, with occasional night frosts, but values will fluctuate as weather systems come and go.

Updated:

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