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St-Athan

  • Sunny day 9 °C 1 °C
  • Overcast 8 °C 7 °C
  • Overcast 11 °C 8 °C
  • Overcast 11 °C 6 °C
  • Cloudy 10 °C 7 °C
  • Overcast 10 °C 8 °C
  • Overcast 11 °C 7 °C
Now 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00
Sunny day Sunny day Sunny day Clear night Clear night Clear night Clear night Clear night Partly cloudy night Partly cloudy night Partly cloudy night
<5% <5% <5% <5% <5% <5% <5% <5% <5% <5% <5%
Temperature (°C)
8 ° 8 ° 7 ° 5 ° 4 ° 4 ° 4 ° 4 ° 3 ° 3 ° 3 °
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8 ° 7 ° 6 ° 4 ° 3 ° 2 ° 3 ° 2 ° 2 ° 2 ° 1 °
Wind direction, speed & gust (mph) Expand
NW 3 4 SW 4 5 WSW 3 4 NW 3 4 NE 3 4 ENE 3 5 ENE 3 6 NNE 4 6 NE 3 6 ENE 5 7 NE 5 7
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
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1 1 1
Sunrise: 08:14 Sunset: 16:06 Moon phase: New Air pollution: 2
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Cloudy Cloudy Fog Fog Cloudy Clear night Partly cloudy night Partly cloudy night Cloudy Cloudy Cloudy Cloudy Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast
10% 10% 20% 20% 10% <5% <5% <5% 10% <5% <5% 10% 10% 10% 10% 10% 10% 10% 10% 10% 10% 10% 20% 10%
Temperature (°C)
3 ° 3 ° 3 ° 3 ° 3 ° 3 ° 3 ° 4 ° 4 ° 5 ° 6 ° 7 ° 8 ° 8 ° 8 ° 8 ° 7 ° 7 ° 7 ° 8 ° 8 ° 8 ° 8 ° 8 °
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Feels like temperature (°C) Expand
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Wind direction, speed & gust (mph) Expand
NE 5 7 NE 5 6 NE 4 6 NNE 4 6 N 5 7 NNW 5 9 NW 5 9 NNW 5 9 N 5 8 NNE 5 7 NNE 4 8 NNE 4 8 ENE 5 9 ESE 5 9 SE 5 9 E 5 7 NE 4 7 NE 4 7 NNE 4 7 NNE 4 8 N 5 8 NNE 4 7 NNE 5 9 N 5 9
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
M M VP VP M M M M M M M G G G M M M M M M M M M M
Humidity Expand
97% 97% 98% 98% 96% 94% 94% 93% 94% 93% 93% 92% 93% 93% 94% 95% 95% 96% 95% 96% 96% 96% 96% 97%
UV index Expand
1 1 1 1 1 1 1
Sunrise: 08:15 Sunset: 16:06 Moon phase: New Air pollution: 2
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Overcast Overcast Fog Overcast Overcast Cloudy Overcast Overcast
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Temperature (°C)
8 ° 9 ° 9 ° 9 ° 11 ° 10 ° 9 ° 9 °
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7 ° 8 ° 8 ° 8 ° 9 ° 8 ° 8 ° 7 °
Wind direction, speed & gust (mph) Expand
NNE 5 9 N 5 10 W 6 11 WNW 6 11 W 8 15 W 9 19 W 9 15 W 9 17
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
M M VP M G VG G G
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97% 97% 99% 98% 95% 93% 94% 94%
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Sunrise: 08:16 Sunset: 16:07 Moon phase: New Air pollution: 2
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Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast
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Temperature (°C)
10 ° 10 ° 9 ° 10 ° 10 ° 10 ° 9 ° 9 °
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8 ° 7 ° 7 ° 7 ° 8 ° 8 ° 7 ° 6 °
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WNW 11 19 W 11 20 W 11 20 W 11 20 NW 11 19 NW 10 18 W 10 16 SSW 10 18
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
VG G G G VG G G G
Humidity Expand
93% 94% 94% 95% 93% 91% 93% 94%
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1 1 1
Sunrise: 08:16 Sunset: 16:07 Moon phase: Waxing crescent Air pollution: 3
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Overcast Cloudy Overcast Overcast Cloudy Cloudy Overcast Overcast
10% 10% 20% 10% 10% 10% 10% 10%
Temperature (°C)
9 ° 8 ° 8 ° 8 ° 9 ° 9 ° 8 ° 8 °
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6 ° 6 ° 6 ° 6 ° 7 ° 8 ° 7 ° 7 °
Wind direction, speed & gust (mph) Expand
SW 11 19 SW 10 18 WSW 9 17 SW 9 15 WSW 9 15 W 7 12 WNW 7 11 NW 6 10
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
G M G G G G G G
Humidity Expand
93% 94% 95% 95% 91% 92% 95% 95%
UV index Expand
1 1 1
Sunrise: 08:17 Sunset: 16:08 Moon phase: Waxing crescent Air pollution: 2
00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
Cloudy Overcast Overcast Overcast Overcast Overcast Overcast Overcast
10% 20% 20% 20% 20% 20% 20% 20%
Temperature (°C)
8 ° 8 ° 8 ° 9 ° 9 ° 10 ° 9 ° 9 °
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7 ° 7 ° 6 ° 6 ° 7 ° 7 ° 7 ° 7 °
Wind direction, speed & gust (mph) Expand
WNW 7 12 NW 8 14 NW 8 15 W 11 20 W 13 24 W 12 24 W 13 23 WSW 13 24
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
G G G G G G G G
Humidity Expand
95% 96% 95% 95% 92% 93% 94% 95%
UV index Expand
1 1 1
Sunrise: 08:17 Sunset: 16:08 Moon phase: Waxing crescent
00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
Overcast Overcast Overcast Overcast Overcast Cloudy Cloudy Cloudy
20% 20% 20% 20% 20% 20% 10% 20%
Temperature (°C)
10 ° 10 ° 9 ° 10 ° 10 ° 10 ° 9 ° 9 °
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7 ° 7 ° 6 ° 6 ° 6 ° 6 ° 6 ° 6 °
Wind direction, speed & gust (mph) Expand
WSW 15 26 WSW 15 27 WSW 14 27 WSW 16 28 WSW 15 29 WSW 14 28 WSW 14 27 WSW 13 27
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
M M M VG VG VG VG G
Humidity Expand
95% 94% 94% 91% 89% 88% 88% 88%
UV index Expand
1 1 1
Sunrise: 08:18 Sunset: 16:09 Moon phase: Waxing crescent

Issued at:

Forecast Summary

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

Wales

Headline:

A dry and bright day for most.

Today:

After a rather chilly start, it will be a dry and bright day for all of us with some sunny spells likely for many. The winds will be light, but cloud is likely to increase in the far west later. Maximum temperature 8 °C.

Tonight:

Cloud, hill fog will gradually spread across far western areas. Central and eastern areas will be a little clearer and colder with some patchy fog possibly forming. Minimum temperature -1 °C.

Tuesday:

Tuesday will be milder and increasingly cloudy across all parts with patchy light rain or drizzle. Hill fog is also likely to persist over the high ground. Maximum temperature 11 °C.

Outlook for Wednesday to Friday:

Remaining mostly cloudy and rather mild, although some brighter spells are possible on Thursday. There will be further patchy rain or drizzle and hill fog, with overnight fog also possible.

Updated: 03:02 on Mon 18 Dec 2017 GMT

UK forecast for the next 5 days

Headline:

Dry and bright for many, turning cloudier in the west.

Today:

Some mist and fog patches will be slow to clear through the day. However, it will be dry and bright for many with light winds. Slowly turning cloudier in the north and west and becoming windy in the far northwest.

Tonight:

Cold and frosty for much of England and Wales, away from the west, with fog/low cloud probably becoming widespread. Cloudier, milder and windier in the north with some drizzle.

Tuesday:

Fog and low cloud slowly clearing. Cloudy, windy and mild conditions with some rain and drizzle in the northwest will struggle to reach the southeast.

Outlook for Wednesday to Friday:

Turning drier, brighter and cooler in the north through Wednesday into Thursday, cloudy and mild with patchy rain in the south. Cloud and patchy rain then spreading northeast on Friday.

Updated: 01:39 on Mon 18 Dec 2017 GMT

Outlook for the UK over the next 6-30 days

UK Outlook for Saturday 23 Dec 2017 to Monday 1 Jan 2018:

At the start of this period largely mild conditions are expected to dominate, as a band of rain, which may be heavy at times, moves slowly and erratically southeastwards. As this rain clears away brighter and colder conditions will move across the country and showers are likely, especially across the north and west. Some of these showers may be wintry, particularly over high ground, however in the south and east it will remain mostly dry. In the period between Christmas and New Year, very unsettled conditions look likely to develop with gales at times along with some heavy rain. Temperatures will fluctuate during this period between milder, wet and windy spells and colder but brighter, showery interludes.

UK Outlook for Tuesday 2 Jan 2018 to Tuesday 16 Jan 2018:

At the start of the new year, it is likely to be unsettled and often windy across much of the UK. Bands of rain are expected to move across the country with heavy, and perhaps wintry showers moving in behind. The best of any drier weather will be in southern and eastern parts. Through the first half of January confidence remain low, but longer periods of more settled weather may become established. This would lead to longer spells of drier and colder conditions, as well as an increased likelihood of overnight frost and fog.

Updated: 01:39 on Mon 18 Dec 2017 GMT

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