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St-Athan

St-Athan last 24 hours
  • 24°C 16°C
    Sunny day
  • 20°C 11°C
    Sunny intervals
  • 20°C 14°C
    Light rain
  • 19°C 11°C
    Cloudy
  • 17°C 11°C
    Cloudy
  • 17°C 11°C
    Cloudy
  • 17°C 10°C
    Light shower day
Friday   (26 May 2017)
0600 0700 0800 0900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300
Sunny day Sunny day Sunny day Sunny day Sunny day Sunny day Sunny day Sunny day Sunny day Sunny day Sunny day Sunny day Sunny day Sunny day Sunny day Sunny day Clear night Clear night
Temperature (°C)
14 15 17 18 19 20 22 22 23 23 23 23 22 21 21 20 19 18
Feels like temperature (°C) arrow down
13 14 15 16 16 17 18 19 19 19 19 19 19 18 18 17 17 16
Precipitation probability arrow down
<5% <5% <5% <5% <5% <5% <5% <5% <5% <5% <5% <5% <5% <5% <5% <5% <5% <5%
Wind direction, speed & gust (mph) arrow down
ENE 9 20 ENE 10 20 E 11 17 E 12 19 E 14 22 ESE 15 24 ESE 15 25 ESE 16 26 ESE 16 27 ESE 16 28 ESE 15 27 ESE 15 28 ESE 15 28 ESE 14 28 ESE 13 26 E 12 26 E 12 24 E 10 22
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) arrow down
VG G G G G G G G VG VG VG VG VG VG VG VG VG VG
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81% 78% 73% 69% 67% 64% 61% 55% 50% 48% 47% 49% 52% 56% 58% 60% 63% 67%
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1 1 2 3 5 6 7 8 7 5 4 3 2 1 1 1 0 0
Saturday   (27 May 2017)
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Clear night Clear night Clear night Light shower night Light shower night Light shower night Light shower day Light shower day Light shower day Light shower day Light shower day Light shower day Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Cloudy Cloudy Cloudy Overcast Overcast
Temperature (°C)
18 17 17 17 17 16 16 16 17 17 18 18 18 18 18 18 17 17 16 15 15 14 14 13
Feels like temperature (°C) arrow down
16 16 15 15 15 15 15 15 16 16 16 16 16 16 16 15 14 14 14 13 13 12 12 12
Precipitation probability arrow down
<5% <5% <5% 30% 30% 40% 40% 40% 40% 30% 30% 30% <5% <5% <5% <5% <5% <5% <5% <5% <5% 10% 10% 10%
Wind direction, speed & gust (mph) arrow down
E 9 20 E 9 20 E 9 20 E 10 20 E 10 20 E 9 18 E 8 18 ESE 8 15 ESE 10 17 SSE 9 15 SSW 10 17 SW 12 18 SW 13 21 WSW 13 22 W 14 23 W 15 24 W 14 24 W 14 23 W 14 23 W 13 22 W 12 20 W 11 18 W 9 16 W 8 14
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) arrow down
VG VG VG G VG G G G G VG VG VG VG VG VG E VG VG VG VG VG VG VG VG
Humidity arrow down
71% 76% 78% 77% 81% 83% 86% 89% 87% 86% 83% 81% 80% 78% 78% 79% 81% 82% 84% 87% 89% 91% 91% 92%
UV index arrow down
0 0 0 0 0 0 1 1 2 3 4 4 5 6 5 4 4 3 2 1 1 1 0 0
Sunday   (28 May 2017)
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Overcast Overcast Cloudy Cloudy Cloudy Cloudy Cloudy Heavy shower day Heavy shower night
Temperature (°C)
13 13 13 13 16 17 18 18 16
Feels like temperature (°C) arrow down
12 12 12 13 15 17 17 17 15
Precipitation probability arrow down
10% 10% 10% 10% 10% 10% 10% 60% 60%
Wind direction, speed & gust (mph) arrow down
W 7 13 W 7 12 W 6 9 NNW 4 7 NNE 6 12 NE 7 13 NNE 7 14 NNE 8 14 N 8 13
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) arrow down
VG VG G G G VG VG G G
Humidity arrow down
91% 92% 94% 90% 80% 73% 71% 77% 84%
UV index arrow down
0 0 0 1 3 5 2 1 0
Monday   (29 May 2017)
0100 0400 0700 1000 1300 1600 1900 2200
Heavy shower night Light shower night Light shower day Cloudy Overcast Cloudy Cloudy Cloudy
Temperature (°C)
15 15 14 16 17 17 16 14
Feels like temperature (°C) arrow down
14 14 14 15 16 15 14 12
Precipitation probability arrow down
60% 40% 40% 20% 20% 10% 10% 10%
Wind direction, speed & gust (mph) arrow down
NNE 8 15 NE 7 13 NNE 6 12 N 8 13 W 9 17 WSW 11 20 W 11 19 W 9 17
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) arrow down
G G G G G VG VG G
Humidity arrow down
88% 90% 90% 87% 83% 80% 81% 87%
UV index arrow down
0 0 1 2 4 3 1 0
Tuesday   (30 May 2017)
0100 0400 0700 1000 1300 1600 1900 2200
Partly cloudy night Cloudy Cloudy Cloudy Sunny intervals Sunny intervals Sunny intervals Cloudy
Temperature (°C)
13 12 13 15 16 16 15 13
Feels like temperature (°C) arrow down
11 11 11 13 14 13 13 12
Precipitation probability arrow down
10% 10% 10% 10% 10% 10% <5% 10%
Wind direction, speed & gust (mph) arrow down
WNW 8 15 WNW 9 16 W 8 16 WSW 10 20 W 12 23 W 12 23 W 11 20 WSW 8 15
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) arrow down
G G G G VG VG VG VG
Humidity arrow down
90% 91% 88% 83% 75% 70% 76% 86%
UV index arrow down
0 0 1 3 6 3 1 0
Wednesday   (31 May 2017)
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Partly cloudy night Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy
Temperature (°C)
12 12 12 14 16 16 16 14
Feels like temperature (°C) arrow down
11 11 11 13 15 15 14 12
Precipitation probability arrow down
<5% 10% 10% 10% 10% 10% 10% 10%
Wind direction, speed & gust (mph) arrow down
SW 7 13 SW 7 12 SSW 6 12 SSW 9 17 SSW 10 20 SSW 10 20 SSW 9 18 W 7 13
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) arrow down
G G G G VG VG VG VG
Humidity arrow down
90% 91% 88% 80% 72% 69% 72% 81%
UV index arrow down
0 0 1 4 5 3 1 0
Thursday   (01 June 2017)
0100 0400 0700 1000 1300 1600 1900 2200
Cloudy Cloudy Cloudy Light shower day Light shower day Sunny intervals Sunny intervals Partly cloudy night
Temperature (°C)
13 12 13 14 16 15 15 13
Feels like temperature (°C) arrow down
11 11 11 13 14 13 12 11
Precipitation probability arrow down
10% 10% 10% 30% 30% 30% 10% 10%
Wind direction, speed & gust (mph) arrow down
S 7 13 S 8 14 S 8 15 SSW 11 20 SW 12 24 WSW 13 25 W 13 24 W 11 21
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) arrow down
G G G VG VG VG VG VG
Humidity arrow down
87% 89% 87% 81% 75% 71% 71% 77%
UV index arrow down
0 0 1 3 5 3 1 0
More Detail chevron down

Issued at: 0600 on Fri 26 May 2017

Forecast summary

Regional forecast for Wales

Hot and sunny again today. Thunderstorms tonight and tomorrow.

Today:

Friday will be dry, sunny and hot again everywhere. A brisk warm breeze will develop, particularly in the south-west. A little fair weather cloud may develop in the east later. Maximum Temperature 27 °C.

Tonight:

After a warm sunny evening, most places will have another mild rather muggy night. Heavy and thundery showers will arrive in the south-west in the early hours. Minimum Temperature 14 °C.

Saturday:

Saturday will be hot again in the east but those heavy, thundery showers will move further north-eastwards, leaving fresher but still warm weather in the southwest for the afternoon. Maximum Temperature 24 °C.

Outlook for Sunday to Tuesday:

Sunday will be fresher, though mostly dry with sunny spells. Heavy overnight showers in the east will continue into Monday. Tuesday will probably be dry and warm with sunny spells.

Updated at: 0438 on Fri 26 May 2017

UK forecast for the next 5 days

Another hot sunny day today. Thunderstorms tonight and tomorrow.

Today:

Friday will be dry, sunny and hot again almost everywhere. A warm breeze will develop, particularly in the south and west. Western parts of Northern Ireland will cloud over in the afternoon bringing the chance of showers there later.

Tonight:

After a warm sunny evening, most places will have another mild and rather muggy night. Heavy and thundery showers will move across south-west England, south Wales and Northern Ireland.

Saturday:

Saturday will be hot again in the east but those heavy, thundery showers will move further north-eastwards, leaving fresher but still sunny and warm weather in the south and west.

Outlook for Sunday to Tuesday:

Sunday will be fresher, though mostly dry and sunny. Heavy overnight showers in the south will continue into Monday. Tuesday will probably be mainly dry, except in the far northwest.

Updated at: 0433 on Fri 26 May 2017

Outlook for the UK over the next 6-30 days

UK Outlook for Tuesday 30 May 2017 to Thursday 8 Jun 2017:

Initially fairly settled with dry conditions and some sunny spells on Tuesday. Then becoming more changeable 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. Remaining unsettled from the end of the week and through the remainder of the period with a northwest-southeast split. The northwest tending to see spells of rain or showers with some drier, brighter interludes. Generally drier and brighter further southeast, but with some humid, thundery spells still possible in the southeast. Becoming windy at times, especially over next weekend. Temperatures generally near normal, or rather cool, in the northwest and warm at times in the south and east.

Updated at: 1250 on Thu 25 May 2017

UK Outlook for Friday 9 Jun 2017 to Friday 23 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, bringing drier and brighter weather for many. 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 at: 1248 on Thu 25 May 2017