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Llyn Y Fan Fawr

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  • 13 °C 9 °C
    Light rain
  • 14 °C 9 °C
    Heavy rain
  • 13 °C 8 °C
    Cloudy
  • 12 °C 8 °C
    Thunder shower day
  • 13 °C 8 °C
    Light shower day
  • 13 °C 9 °C
    Light shower day
  • 14 °C 10 °C
    Light rain
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Now 1900 2000 2100 2200 2300
Cloudy Sunny intervals Sunny intervals Sunny intervals Partly cloudy night Partly cloudy night
Temperature (°C)
12 ° 11 ° 11 ° 10 ° 10 ° 10 °
Feels like temperature (°C)
8 ° 7 ° 7 ° 6 ° 6 ° 6 °
Precipitation probability
10% <5% <5% <5% <5% <5%
Wind direction, speed & gust (mph)
WSW 24 30 SW 25 30 WSW 25 30 WSW 24 31 WSW 25 32 WSW 26 33
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor)
G G VG VG VG VG
Humidity
92% 93% 91% 92% 95% 96%
UV index
2 1 1 1 0 0
Sunrise: 05:29 Sunset: 21:13 Moon phase: Waxing crescent Air pollution: 2
0000 0100 0200 0300 0400 0500 0600 0700 0800 0900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300
Light shower night Cloudy Partly cloudy night Partly cloudy night Cloudy Cloudy Cloudy Light shower day Cloudy Cloudy Light rain Light rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Drizzle
Temperature (°C)
10 ° 10 ° 10 ° 10 ° 9 ° 9 ° 10 ° 10 ° 10 ° 11 ° 11 ° 12 ° 12 ° 12 ° 12 ° 12 ° 12 ° 12 ° 12 ° 13 ° 13 ° 13 ° 13 ° 12 °
Feels like temperature (°C)
6 ° 6 ° 6 ° 5 ° 5 ° 5 ° 5 ° 5 ° 6 ° 7 ° 7 ° 8 ° 8 ° 8 ° 8 ° 8 ° 8 ° 8 ° 8 ° 8 ° 8 ° 9 ° 9 ° 8 °
Precipitation probability
40% 10% <5% 10% 10% 10% 10% 30% 10% 20% 50% 50% 80% 90% 90% ≥95% ≥95% ≥95% ≥95% ≥95% ≥95% ≥95% 90% 40%
Wind direction, speed & gust (mph)
WSW 24 31 WSW 26 33 WSW 25 31 WSW 26 33 WSW 25 33 WSW 26 34 WSW 27 35 WSW 26 34 WSW 28 36 WSW 26 35 WSW 26 34 WSW 26 35 SW 25 33 SW 25 33 SW 25 33 SW 26 35 SSW 26 35 SSW 28 37 SSW 30 39 SSW 32 41 SW 30 40 SW 29 38 WSW 26 34 WSW 22 30
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor)
VG VG VG VG E VG VG VG VG VG P P P VP VP VP VP VP VP VP VP VP VP VP
Humidity
94% 96% 97% 94% 92% 94% 95% 95% 96% 94% 94% 94% 95% 96% 97% 98% 99% 99% 99% 99% 99% 99% 99% 99%
UV index
0 0 0 0 0 0 1 1 2 2 3 3 4 4 3 2 2 1 1 1 1 1 0 0
Sunrise: 05:30 Sunset: 21:11 Moon phase: Waxing crescent Air pollution: 2
0000 0100 0400 0700 1000 1300 1600 1900 2200
Drizzle Fog Fog Cloudy Cloudy Cloudy Cloudy Cloudy Light rain
Temperature (°C)
11 ° 11 ° 10 ° 9 ° 11 ° 12 ° 12 ° 11 ° 10 °
Feels like temperature (°C)
8 ° 7 ° 6 ° 6 ° 8 ° 10 ° 10 ° 9 ° 8 °
Precipitation probability
40% 40% 20% 10% 10% 10% 10% 20% 50%
Wind direction, speed & gust (mph)
WSW 21 29 WSW 21 28 W 19 25 WSW 16 21 SW 15 22 SW 15 24 SW 13 21 SW 11 17 SW 9 15
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor)
VP VP VP M M VG VG VG M
Humidity
99% 99% 99% 99% 94% 86% 84% 89% 96%
UV index
0 0 0 1 3 5 3 1 0
Sunrise: 05:32 Sunset: 21:10 Moon phase: Waxing crescent Air pollution: 2
0100 0400 0700 1000 1300 1600 1900 2200
Partly cloudy night Partly cloudy night Light shower day Thunder Heavy shower day Thunder shower day Thunder shower day Thunder shower night
Temperature (°C)
9 ° 9 ° 9 ° 11 ° 12 ° 11 ° 10 ° 9 °
Feels like temperature (°C)
7 ° 6 ° 6 ° 8 ° 9 ° 8 ° 7 ° 6 °
Precipitation probability
10% 20% 40% 70% 70% 70% 70% 60%
Wind direction, speed & gust (mph)
WSW 11 17 SW 13 20 SW 14 22 SW 16 28 SW 17 32 SW 18 32 SW 17 30 SW 17 28
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor)
G G G M M M M G
Humidity
97% 97% 97% 93% 92% 92% 94% 96%
UV index
0 0 1 3 5 3 1 0
Sunrise: 05:33 Sunset: 21:08 Moon phase: First quarter Air pollution: 2
0100 0400 0700 1000 1300 1600 1900 2200
Cloudy Cloudy Cloudy Light shower day Light shower day Light shower day Light shower day Cloudy
Temperature (°C)
9 ° 9 ° 9 ° 11 ° 12 ° 12 ° 11 ° 9 °
Feels like temperature (°C)
5 ° 5 ° 6 ° 8 ° 9 ° 9 ° 9 ° 7 °
Precipitation probability
20% 20% 10% 40% 40% 40% 40% 10%
Wind direction, speed & gust (mph)
SW 18 29 SW 16 26 SW 15 24 SW 15 28 SW 15 29 SW 15 29 SW 14 25 SW 12 18
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor)
G G M M G G VG VG
Humidity
96% 97% 96% 92% 88% 83% 85% 95%
UV index
0 0 1 3 5 3 1 0
Sunrise: 05:35 Sunset: 21:07 Moon phase: First quarter Air pollution: 2
0100 0400 0700 1000 1300 1600 1900 2200
Cloudy Cloudy Cloudy Light shower day Light shower day Light shower day Light shower day Cloudy
Temperature (°C)
9 ° 9 ° 9 ° 11 ° 13 ° 13 ° 12 ° 10 °
Feels like temperature (°C)
7 ° 6 ° 7 ° 9 ° 10 ° 10 ° 10 ° 8 °
Precipitation probability
10% 10% 20% 40% 40% 40% 40% 20%
Wind direction, speed & gust (mph)
SSW 11 17 S 10 16 S 10 15 SSW 11 20 SW 12 24 SW 13 25 SW 13 23 SSW 13 20
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor)
G G G G G G G G
Humidity
97% 97% 96% 89% 84% 82% 85% 94%
UV index
0 0 1 2 5 3 1 0
Sunrise: 05:36 Sunset: 21:05 Moon phase: First quarter
0100 0400 0700 1000 1300 1600 1900 2200
Cloudy Cloudy Cloudy Light rain Light rain Light shower day Light shower day Light rain
Temperature (°C)
9 ° 9 ° 10 ° 12 ° 13 ° 13 ° 12 ° 11 °
Feels like temperature (°C)
7 ° 7 ° 7 ° 9 ° 10 ° 10 ° 9 ° 8 °
Precipitation probability
20% 20% 20% 50% 50% 40% 40% 50%
Wind direction, speed & gust (mph)
SSW 13 20 SSW 13 21 S 15 24 SSW 17 29 SSW 18 34 SSW 19 33 SSW 18 32 SSW 17 29
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor)
G G G G G G G G
Humidity
96% 97% 96% 91% 85% 86% 89% 94%
UV index
0 0 1 3 4 3 1 0
Sunrise: 05:38 Sunset: 21:03 Moon phase: First quarter
More detail

Issued at:

Forecast Summary

Regional Forecast for Wales

Headline:

Mostly dry with clear spells tonight. Some rain arriving tomorrow.

This Evening and Tonight:

Any daytime showers soon easing to leave a mostly dry and bright evening. This will give a mostly dry night, with clear spells. Perhaps a few showers keeping going around the coasts. It will be cool night in rural parts. Minimum temperature 11 °C.

Friday:

Friday will start mostly dry with sunny spells, especially in the north. Turning cloudier with persistent rain spreading from the south later, some heavy, with strong winds on coasts. Maximum temperature 18 °C.

Outlook for Saturday to Monday:

Generally unsettled with a mixture of sunny spells and scattered showers throughout. The showers will be heavy and possibly thundery at times, especially on Sunday. Breezy and feeling cool throughout.

Updated: 15:01 on Thu 27 Jul 2017 BST

UK forecast for the next 5 days

Headline:

Showers in the north tonight, elsewhere mostly dry.

This Evening and Tonight:

It will be a mostly dry and breezy night, with clear spells and some scattered showers, mainly in the north and west. Cloudier with more frequent showers or longer spells of rain in the northwest, with some strong winds.

Friday:

Friday will see a mixture of sunny spells and scattered heavy showers in the north. Further south, turning cloudy, with more persistent rain moving northeast across Wales and southern England.

Outlook for Saturday to Monday:

Generally unsettled with a mixture of sunny spells and showers throughout. Perhaps some heavy and persistent rain in the far southeast later on Saturday into Sunday.

Updated: 15:01 on Thu 27 Jul 2017 BST

Outlook for the UK over the next 6-30 days

UK Outlook for Tuesday 1 Aug 2017 to Thursday 10 Aug 2017:

Remaining unsettled with sunny spells and showers through Tuesday. The heaviest and most frequent showers affecting the north and west, with much of the south staying largely dry, with sunny spells. We are likely to see a low pressure system push in from the Atlantic on Wednesday, bringing a spell of wet and windy weather to some western parts of the United Kingdom, spreading to all parts on Thursday. Thereafter, we are likely to see a return to sunshine and showers, most frequent and heaviest in the northwest. Into the weekend and early next week, we may begin to see conditions becoming more settled across the UK, with high pressure building from the southwest, with a predominately north-westerly flow. Temperatures will generally be around normal to rather cool throughout.

UK Outlook for Friday 11 Aug 2017 to Friday 25 Aug 2017:

There are increasing signals for high pressure to build during this period, which would allow for more settled conditions across the United Kingdom, with a predominately west to north-westerly flow becoming established. However, there will still be the risk of spells of rain or showers, mainly in the north, but overall a good deal of dry weather with some sunshine, especially in the south. Temperatures generally near normal by day, but potentially rather cool at night. By the middle of August signals become mixed, with low confidence. On balance though, we are most likely to see a northwest/southeast split in weather conditions across the United Kingdom, with some rain or showers in the northwest and drier conditions with some sunshine in the southeast.

Updated: 15:01 on Thu 27 Jul 2017 BST