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Llyn Y Fan Fawr

  • Drizzle 16 °C

    9 °C

  • Cloudy 16 °C

    11 °C

  • Overcast 13 °C

    7 °C

  • Light shower day 12 °C

    6 °C

  • Cloudy 13 °C

    7 °C

  • Cloudy 15 °C

    7 °C

  • Light shower day 12 °C

    5 °C

Saturday (27 May 2017)
Now 0800 0900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300
Light shower day Cloudy Cloudy Fog Light rain Light rain Light rain Light rain Light rain Drizzle Drizzle Drizzle Drizzle Fog Fog Fog Cloudy
Warnings
Temperature (°C) arrow down
15  ° 15  ° 14  ° 14  ° 13  ° 12  ° 12  ° 12  ° 12  ° 12  ° 11  ° 11  ° 11  ° 11  ° 11  ° 10  ° 10  °
Show all detail Show all detail
Feels like temperature (°C) Expand
11  ° 11  ° 10  ° 10  ° 9  ° 8  ° 8  ° 7  ° 7  ° 8  ° 8  ° 7  ° 8  ° 7  ° 7  ° 7  ° 7  °
Precipitation probability Expand
40% 10% 10% 30% 60% 60% 60% 50% 60% 40% 40% 30% 30% 20% 20% 20% 10%
Wind direction, speed & gust (mph) Expand
SE 23 30 SE 20 26 SSE 24 31 S 20 27 SSW 21 29 SSW 23 31 SSW 25 33 SSW 26 35 SW 26 35 WSW 25 34 WSW 24 32 WSW 23 30 WSW 20 28 WSW 19 26 WSW 18 24 WSW 17 23 WSW 16 22
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
E VG M VP VP VP VP VP VP VP VP VP VP VP VP VP M
Humidity Expand
89% 91% 97% 97% 97% 98% 98% 98% 98% 98% 98% 98% 98% 98% 98% 99% 98%
UV index Expand
1 1 2 2 3 3 4 4 3 3 2 2 1 1 1 0 0
Sunrise: 05:06 Sunset: 21:18 Moon phase: New Air pollution: 3
Sunday (28 May 2017)
0000 0100 0200 0300 0400 0500 0600 0700 0800 0900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300
Mist Mist Mist Fog Fog Fog Cloudy Mist Cloudy Cloudy Sunny intervals Cloudy Cloudy Cloudy Sunny intervals Cloudy Cloudy Cloudy Light shower day Light shower day Light shower day Light shower day Heavy shower night Heavy shower night
Warnings
Temperature (°C) arrow down
10  ° 10  ° 10  ° 10  ° 10  ° 10  ° 9  ° 9  ° 10  ° 10  ° 11  ° 12  ° 13  ° 14  ° 14  ° 15  ° 15  ° 15  ° 15  ° 14  ° 14  ° 13  ° 13  ° 13  °
Show all detail Show all detail
Feels like temperature (°C) Expand
7  ° 7  ° 7  ° 8  ° 8  ° 8  ° 8  ° 8  ° 8  ° 9  ° 10  ° 11  ° 12  ° 13  ° 13  ° 13  ° 14  ° 13  ° 13  ° 12  ° 11  ° 11  ° 10  ° 9  °
Precipitation probability Expand
20% 20% 20% 20% 20% 20% 10% 20% 10% 10% <5% <5% 10% <5% <5% 10% 10% 10% 30% 30% 30% 40% 60% 70%
Wind direction, speed & gust (mph) Expand
WSW 15 20 WSW 13 17 WSW 11 15 W 10 13 W 8 11 WNW 7 9 N 6 9 NNE 7 10 NNE 7 9 NE 5 8 NE 5 8 E 5 9 ESE 6 10 ESE 7 11 ESE 8 13 E 9 14 E 9 14 E 10 16 E 11 15 E 12 16 E 13 18 ENE 15 22 ENE 18 25 ENE 19 25
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
P P P VP VP VP M P M G G G VG VG VG VG VG VG VG VG G G G G
Humidity Expand
98% 99% 98% 98% 98% 98% 97% 97% 95% 91% 86% 81% 77% 74% 72% 71% 68% 72% 75% 78% 84% 87% 91% 92%
UV index Expand
0 0 0 0 0 0 1 1 2 3 4 4 5 6 5 4 3 2 1 1 1 1 0 0
Sunrise: 05:05 Sunset: 21:19 Moon phase: New Air pollution: 3
Monday (29 May 2017)
0000 0100 0400 0700 1000 1300 1600 1900 2200
Heavy shower night Heavy shower night Drizzle Drizzle Overcast Cloudy Cloudy Cloudy Cloudy
Warnings
Temperature (°C) arrow down
12  ° 12  ° 12  ° 12  ° 12  ° 13  ° 12  ° 11  ° 9  °
Show all detail Show all detail
Feels like temperature (°C) Expand
9  ° 9  ° 10  ° 10  ° 10  ° 11  ° 10  ° 9  ° 7  °
Precipitation probability Expand
70% 80% 40% 50% 20% 20% 20% 10% 10%
Wind direction, speed & gust (mph) Expand
E 19 26 E 18 25 ESE 15 21 SE 11 16 SE 10 16 SW 10 18 WSW 12 22 W 12 20 WSW 11 18
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
M G P VP M M M G M
Humidity Expand
93% 93% 99% 99% 96% 93% 93% 93% 96%
UV index Expand
0 0 0 1 2 3 2 1 0
Sunrise: 05:04 Sunset: 21:21 Moon phase: Waxing crescent Air pollution: 3
Tuesday (30 May 2017)
0100 0400 0700 1000 1300 1600 1900 2200
Cloudy Overcast Overcast Cloudy Sunny intervals Sunny intervals Sunny intervals Partly cloudy night
Warnings
Temperature (°C) arrow down
8  ° 8  ° 8  ° 10  ° 11  ° 12  ° 11  ° 9  °
Show all detail Show all detail
Feels like temperature (°C) Expand
5  ° 5  ° 6  ° 8  ° 9  ° 10  ° 9  ° 7  °
Precipitation probability Expand
10% 20% 10% 10% 10% 10% 10% 10%
Wind direction, speed & gust (mph) Expand
WSW 11 18 WSW 12 19 WSW 13 21 WSW 12 22 WSW 12 24 WSW 12 24 W 11 20 WSW 8 13
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
M M M M VG VG VG VG
Humidity Expand
97% 97% 97% 92% 86% 82% 82% 93%
UV index Expand
0 0 1 3 5 3 1 0
Sunrise: 05:03 Sunset: 21:22 Moon phase: Waxing crescent Air pollution: 3
Wednesday (31 May 2017)
0100 0400 0700 1000 1300 1600 1900 2200
Partly cloudy night Partly cloudy night Cloudy Cloudy Cloudy Cloudy Sunny intervals Partly cloudy night
Warnings
Temperature (°C) arrow down
7  ° 7  ° 8  ° 10  ° 12  ° 13  ° 13  ° 10  °
Show all detail Show all detail
Feels like temperature (°C) Expand
5  ° 5  ° 6  ° 8  ° 11  ° 11  ° 11  ° 8  °
Precipitation probability Expand
<5% <5% 10% <5% <5% 10% <5% <5%
Wind direction, speed & gust (mph) Expand
SW 7 11 SSE 7 10 SSW 7 12 SSW 7 16 SSW 9 19 SSW 10 20 SSW 9 17 S 10 14
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
G G M VG VG VG VG VG
Humidity Expand
96% 96% 94% 84% 75% 72% 75% 90%
UV index Expand
0 0 1 4 6 4 1 0
Sunrise: 05:02 Sunset: 21:23 Moon phase: Waxing crescent Air pollution: 3
Thursday (1 June 2017)
0100 0400 0700 1000 1300 1600 1900 2200
Partly cloudy night Cloudy Sunny intervals Cloudy Sunny intervals Cloudy Cloudy Cloudy
Warnings
Temperature (°C) arrow down
9  ° 8  ° 9  ° 11  ° 13  ° 14  ° 13  ° 10  °
Show all detail Show all detail
Feels like temperature (°C) Expand
6  ° 5  ° 6  ° 9  ° 11  ° 11  ° 10  ° 8  °
Precipitation probability Expand
<5% 10% 10% 10% 10% 10% 10% 10%
Wind direction, speed & gust (mph) Expand
SSE 10 14 SSE 12 16 SSE 13 19 S 12 21 SSW 13 25 SSW 13 25 SW 12 22 SW 11 18
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
G G G VG VG G G G
Humidity Expand
93% 94% 91% 83% 77% 77% 81% 89%
UV index Expand
0 0 1 4 5 3 1 0
Sunrise: 05:02 Sunset: 21:24 Moon phase: First quarter
Friday (2 June 2017)
0100 0400 0700 1000 1300 1600 1900 2200
Cloudy Cloudy Cloudy Sunny intervals Sunny intervals Sunny intervals Sunny intervals Partly cloudy night
Warnings
Temperature (°C) arrow down
9  ° 8  ° 8  ° 10  ° 11  ° 11  ° 10  ° 8  °
Show all detail Show all detail
Feels like temperature (°C) Expand
6  ° 5  ° 5  ° 7  ° 9  ° 9  ° 8  ° 6  °
Precipitation probability Expand
10% 10% 10% 10% 10% 10% 10% 10%
Wind direction, speed & gust (mph) Expand
SW 11 17 SSW 11 17 SSW 11 17 SSE 11 20 WSW 12 24 SSW 11 23 SSW 11 21 WSW 8 16
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
G G G VG VG VG VG VG
Humidity Expand
92% 94% 92% 82% 70% 70% 73% 88%
UV index Expand
0 0 1 4 5 3 1 0
Sunrise: 05:01 Sunset: 21:25 Moon phase: First quarter

Issued at:

Forecast Summary

  • Regional
  • UK 5 days
  • UK 6-30 days

Regional Forecast for Wales

Headline:

Very warm and humid with scattered thundery showers.

Today:

It will be a cloudier start with scattered thundery showers giving some heavy downpours for some. These will continue in places especially across north Wales, whilst elsewhere it will become drier with some very warm sunny spells. Humid. Maximum temperature 23 °C.

Tonight:

Showers will ease through the evening, although some patchy light rain may continue in places. However, turning drier later with some clear spells and feeling cooler than recent nights. Minimum temperature 11 °C.

Sunday:

Sunday will see a generally fine day with sunny spells, although it will be fresher than recently. Later in the afternoon some torrential, thundery showers will arrive from the south. Maximum temperature 20 °C.

Outlook for Monday to Wednesday:

Becoming more changeable next week with showery rain on Monday, perhaps heavy and thundery. Tuesday, generally cloudy and damp but brighter and warmer on Wednesday with sunny spells.

Updated: 03:14 on Sat 27 May 2017 BST

UK forecast for the next 5 days

Headline:

Scattered thunderstorms moving northeast during Saturday.

Today:

Thundery showers will move northeast through Saturday, turning heavier across northern England and southern Scotland during the afternoon. Heavy and persistent rain too for Northern Ireland and western Scotland. Becoming drier across the south and west and still feeling hot.

Tonight:

Outbreaks of occasionally thundery rain will slowly ease northwards overnight, but persisting throughout in the far north. Elsewhere it will be dry with clear spells, feeling cooler than of late.

Sunday:

Rain will continue to slowly clear the Northern Isles through Sunday, elsewhere dry and bright with a fresher feel but further thundery showers arriving from the south in the afternoon.

Outlook for Monday to Wednesday:

On Monday thundery showers will push north with brighter conditions following. Fresher again on Tuesday and Wednesday with light rain in the northwest and drier and brighter conditions further southeast.

Updated: 03:03 on Sat 27 May 2017 BST

Outlook for the UK over the next 6-30 days

UK Outlook for Wednesday 31 May 2017 to Friday 9 Jun 2017:

Mainly dry with some sunny spells in the south and east on Wednesday. Becoming more unsettled in the north and west into Thursday with bands of cloud and rain pushing in from the west, weakening as they move eastwards. The south and southeast still at risk of further humid conditions and thundery outbreaks. Temperatures remaining rather warm. Turning more generally changeable from the end of the week and through the remainder of the period. The northwest tending to see spells of rain or showers with some drier, brighter interludes. Generally drier and brighter further southeast, but some rain at times here too. Windy at times, especially in the northwest. Temperatures generally near normal in the northwest and warm at times in the south and east.

UK Outlook for Saturday 10 Jun 2017 to Saturday 24 Jun 2017:

Confidence is currently low through this period, though we are more likely to see changeable conditions continue through the early part of June. More settled weather may begin to dominate for a time towards the middle of the month, mainly in the south, bringing some drier and brighter weather. Temperatures are likely to be close to normal at first, but may become generally warm, perhaps locally very warm for a time during mid June. By the latter part of the month, there is a possibility of more unsettled conditions developing once more, with spells of rain at times, and temperatures returning closer to average.

Updated: 03:03 on Sat 27 May 2017 BST

Location details

Llyn Y Fan Fawr

Location: 51.883, -3.702
Altitude: 621.0 m above mean sea level

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