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Read moreSt-Athan (Vale of Glamorgan) weather
Find a forecast
Forecast days
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Today. Maximum daytime temperature: 21 degrees Celsius; Minimum nighttime temperature: 13 degrees Celsius. Cloudy changing to sunny by lunchtime. Sunrise: 05:12; Sunset: 21:26. UV: Very high; Pollution: Low; Pollen: High.
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Monday 13 July. Maximum daytime temperature: 17 degrees Celsius; Minimum nighttime temperature: 14 degrees Celsius. Cloudy changing to heavy rain in the afternoon. Sunrise: 05:13; Sunset: 21:26. UV: Moderate; Pollution: Low; Pollen: Moderate.
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Tuesday 14 July. Maximum daytime temperature: 18 degrees Celsius; Minimum nighttime temperature: 13 degrees Celsius. Cloudy. Sunrise: 05:14; Sunset: 21:25. UV: High; Pollution: Low; Pollen: Moderate.
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Wednesday 15 July. Maximum daytime temperature: 18 degrees Celsius; Minimum nighttime temperature: 14 degrees Celsius. Cloudy. Sunrise: 05:15; Sunset: 21:24. UV: High; Pollution: Low; Pollen: Moderate.
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Thursday 16 July. Maximum daytime temperature: 20 degrees Celsius; Minimum nighttime temperature: 14 degrees Celsius. Cloudy changing to sunny intervals by late morning. Sunrise: 05:17; Sunset: 21:22. UV: High; Pollution: Low; Pollen: High.
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Friday 17 July. Maximum daytime temperature: 20 degrees Celsius; Minimum nighttime temperature: 14 degrees Celsius. Sunny intervals changing to cloudy by late morning. Sunrise: 05:18; Sunset: 21:21. UV: High;
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Saturday 18 July. Maximum daytime temperature: 22 degrees Celsius; Minimum nighttime temperature: 13 degrees Celsius. Sunny. Sunrise: 05:19; Sunset: 21:20. UV: High;
Seven day forecast for St-Athan
Today (12 July 2020)
| Time | Now | 12:00 | 13:00 | 14:00 | 15:00 | 16:00 | 17:00 | 18:00 | 19:00 | 20:00 | 21:00 | 22:00 | 23:00 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Weather symbol |
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|
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| Chance of precipitation | <5% | <5% | <5% | <5% | <5% | <5% | <5% | <5% | <5% | <5% | <5% | <5% | <5% |
| Temperature (°C) |
17°
|
18°
|
18°
|
18°
|
19°
|
20°
|
20°
|
19°
|
17°
|
17°
|
16°
|
15°
|
14°
|
| Feels like temperature (°C) | 16° | 18° | 17° | 17° | 18° | 18° | 18° | 17° | 16° | 16° | 15° | 14° | 13° |
| Wind direction and speed (miles per hour) |
SE
8
|
S
5
|
SSW
7
|
WSW
8
|
W
10
|
W
11
|
W
9
|
W
10
|
W
10
|
W
8
|
W
7
|
W
7
|
W
6
|
| Wind gust (miles per hour) | 9 | 6 | 9 | 11 | 12 | 15 | 14 | 14 | 13 | 12 | 13 | 12 | 12 |
| Visibility | M | G | G | VG | VG | E | E | VG | VG | VG | VG | VG | VG |
| Humidity | 65% | 65% | 64% | 63% | 57% | 50% | 49% | 63% | 72% | 76% | 80% | 85% | 85% |
| UV | 6 | 7 | 8 | 7 | 6 | 5 | 4 | 3 | 1 | 1 | 1 | - | - |
Monday (13 July 2020)
| Time | 00:00 | 01:00 | 02:00 | 03:00 | 04:00 | 05:00 | 06:00 | 07:00 | 08:00 | 09:00 | 10:00 | 11:00 | 12:00 | 13:00 | 14:00 | 15:00 | 16:00 | 17:00 | 18:00 | 19:00 | 20:00 | 21:00 | 22:00 | 23:00 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Weather symbol |
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| Chance of precipitation | <5% | <5% | <5% | <5% | <5% | <5% | <5% | 10% | 10% | 10% | 10% | 10% | 10% | 20% | 50% | 90% | 80% | 50% | 80% | 80% | 50% | 20% | 10% | 10% |
| Temperature (°C) |
14°
|
15°
|
14°
|
14°
|
14°
|
14°
|
14°
|
15°
|
15°
|
15°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
15°
|
15°
|
15°
|
15°
|
15°
|
15°
|
15°
|
15°
|
| Feels like temperature (°C) | 13° | 14° | 13° | 13° | 13° | 13° | 13° | 13° | 13° | 14° | 14° | 14° | 14° | 14° | 14° | 14° | 13° | 13° | 13° | 13° | 14° | 14° | 14° | 14° |
| Wind direction and speed (miles per hour) |
W
6
|
W
6
|
W
6
|
W
7
|
W
7
|
W
8
|
W
8
|
W
9
|
W
10
|
WSW
11
|
WSW
11
|
W
13
|
W
13
|
W
14
|
WSW
14
|
WSW
14
|
WSW
14
|
WSW
14
|
WSW
15
|
WSW
14
|
W
12
|
W
11
|
W
9
|
W
8
|
| Wind gust (miles per hour) | 12 | 13 | 13 | 14 | 15 | 16 | 15 | 15 | 17 | 18 | 18 | 21 | 22 | 24 | 24 | 23 | 24 | 23 | 25 | 25 | 22 | 19 | 17 | 15 |
| Visibility | VG | VG | VG | VG | VG | VG | VG | VG | VG | VG | VG | VG | G | G | G | M | M | M | G | M | M | G | G | G |
| Humidity | 86% | 85% | 85% | 85% | 84% | 86% | 85% | 83% | 80% | 79% | 77% | 75% | 76% | 78% | 82% | 86% | 89% | 91% | 93% | 95% | 96% | 95% | 95% | 95% |
| UV | - | - | - | - | - | - | 1 | 1 | 2 | 2 | 3 | 4 | 4 | 4 | 3 | 3 | 2 | 1 | 1 | 1 | 1 | 1 | - | - |
Tuesday (14 July 2020)
| Time | 00:00 | 01:00 | 04:00 | 07:00 | 10:00 | 13:00 | 16:00 | 19:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|---|
| Weather symbol |
|
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|
|
|
|
|
|
| Chance of precipitation | 10% | 10% | 10% | 10% | <5% | 10% | 10% | 10% | 10% |
| Temperature (°C) |
15°
|
15°
|
14°
|
14°
|
16°
|
17°
|
17°
|
15°
|
14°
|
| Feels like temperature (°C) | 14° | 14° | 13° | 13° | 14° | 14° | 14° | 13° | 12° |
| Wind direction and speed (miles per hour) |
WNW
7
|
WNW
7
|
WNW
7
|
WNW
9
|
NW
10
|
WNW
13
|
WNW
14
|
WNW
13
|
WNW
10
|
| Wind gust (miles per hour) | 14 | 14 | 13 | 15 | 17 | 24 | 26 | 24 | 19 |
| Visibility | G | G | G | G | VG | VG | VG | VG | VG |
| Humidity | 96% | 95% | 94% | 92% | 78% | 65% | 64% | 70% | 82% |
| UV | - | - | - | 1 | 3 | 6 | 4 | 1 | - |
Wednesday (15 July 2020)
| Time | 01:00 | 04:00 | 07:00 | 10:00 | 13:00 | 16:00 | 19:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|
| Weather symbol |
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|
|
|
| Chance of precipitation | 20% | 20% | 10% | 10% | 10% | 10% | 10% | <5% |
| Temperature (°C) |
14°
|
14°
|
14°
|
15°
|
16°
|
17°
|
17°
|
16°
|
| Feels like temperature (°C) | 12° | 12° | 12° | 13° | 14° | 14° | 15° | 14° |
| Wind direction and speed (miles per hour) |
WNW
9
|
WNW
8
|
WNW
9
|
WNW
11
|
W
12
|
WNW
14
|
WNW
12
|
WNW
9
|
| Wind gust (miles per hour) | 16 | 15 | 16 | 19 | 22 | 25 | 21 | 16 |
| Visibility | G | G | G | G | VG | VG | VG | VG |
| Humidity | 89% | 91% | 90% | 81% | 77% | 76% | 78% | 87% |
| UV | - | - | 1 | 3 | 6 | 4 | 1 | - |
Thursday (16 July 2020)
| Time | 01:00 | 04:00 | 07:00 | 10:00 | 13:00 | 16:00 | 19:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|
| Weather symbol |
|
|
|
|
|
|
|
|
| Chance of precipitation | <5% | <5% | <5% | <5% | 10% | 10% | <5% | <5% |
| Temperature (°C) |
15°
|
14°
|
15°
|
17°
|
18°
|
19°
|
18°
|
16°
|
| Feels like temperature (°C) | 13° | 13° | 14° | 16° | 16° | 17° | 16° | 15° |
| Wind direction and speed (miles per hour) |
WNW
8
|
WNW
7
|
WNW
7
|
W
9
|
W
12
|
W
13
|
WNW
12
|
WNW
9
|
| Wind gust (miles per hour) | 14 | 12 | 13 | 17 | 22 | 24 | 22 | 16 |
| Visibility | G | G | G | VG | VG | VG | VG | G |
| Humidity | 91% | 94% | 89% | 80% | 76% | 76% | 80% | 89% |
| UV | - | - | 1 | 4 | 6 | 4 | 1 | - |
Friday (17 July 2020)
| Time | 01:00 | 04:00 | 07:00 | 10:00 | 13:00 | 16:00 | 19:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|
| Weather symbol |
|
|
|
|
|
|
|
|
| Chance of precipitation | <5% | <5% | <5% | 10% | 10% | <5% | <5% | <5% |
| Temperature (°C) |
15°
|
14°
|
15°
|
17°
|
19°
|
20°
|
18°
|
16°
|
| Feels like temperature (°C) | 14° | 13° | 14° | 17° | 18° | 18° | 16° | 15° |
| Wind direction and speed (miles per hour) |
WNW
8
|
WNW
7
|
WNW
7
|
WSW
8
|
WSW
10
|
W
12
|
W
10
|
W
8
|
| Wind gust (miles per hour) | 14 | 13 | 13 | 16 | 20 | 21 | 19 | 16 |
| Visibility | G | G | G | VG | VG | VG | VG | G |
| Humidity | 94% | 95% | 92% | 83% | 76% | 75% | 80% | 91% |
| UV | - | - | 1 | 4 | 6 | 4 | 1 | - |
Saturday (18 July 2020)
| Time | 01:00 | 04:00 | 07:00 | 10:00 | 13:00 | 16:00 | 19:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|
| Weather symbol |
|
|
|
|
|
|
|
|
| Chance of precipitation | 10% | 10% | 10% | <5% | <5% | <5% | <5% | <5% |
| Temperature (°C) |
15°
|
14°
|
15°
|
17°
|
20°
|
21°
|
20°
|
17°
|
| Feels like temperature (°C) | 14° | 14° | 14° | 16° | 19° | 19° | 19° | 16° |
| Wind direction and speed (miles per hour) |
W
7
|
WNW
6
|
NW
6
|
WSW
8
|
SW
9
|
W
10
|
W
8
|
W
7
|
| Wind gust (miles per hour) | 13 | 12 | 12 | 15 | 19 | 19 | 16 | 13 |
| Visibility | G | M | G | VG | VG | VG | VG | G |
| Humidity | 94% | 94% | 91% | 83% | 73% | 71% | 74% | 88% |
| UV | - | - | 1 | 4 | 7 | 4 | 1 | - |
Wales weather forecast
Headline:
Feeling warm with good spells of sunshine.
Today:
After a hazy start, the rest of the morning will see blue skies and sunshine. Turning cloudier through the afternoon, but still plenty of sunny spells in between. Light winds will leave temperatures feeling warm, especially in the sunshine. Maximum temperature 22 °C.
Tonight:
A dry and sunny evening before cloud moves in from the west. As a breeze picks up overnight in exposed areas, showery rain will spread eastwards through the early hours. Minimum temperature 9 °C.
Monday:
Cloudy with outbreaks of rain at times throughout the day, although much drier by the evening. Cooler than of late with a light breeze. Maximum temperature 18 °C.
Outlook for Tuesday to Thursday:
Showers at times on Tuesday, but plenty of dry yet cloudy spells. Further scattered showers on Wednesday, but likely clearing by the evening. Dry Thursday with some sunshine at times.
Updated:
UK long range weather forecast
Through the beginning of the period, it will be mostly dry and settled for many areas, especially in the south of the UK. More unsettled conditions with spells of rain and strong winds are likely to affect the north and northwest at times. There is chance that these wetter interludes could spread more widely and affect much of the UK. Temperatures are likely to be mostly around normal, although it may become warm for a time in the south and perhaps very warm in the southeast. Towards the end of the period, more settled conditions are likely to develop, across many parts. Spells of wetter and windier weather are possible across northern and western areas at times.
Updated:
Although confidence remains low throughout this period it is likely that settled conditions will persist across many areas towards the end of July. There may also be the occasional spell of wetter and windier weather at times. These are likely to be focused across northern and western areas though may spread to other regions at times. Temperatures generally around average, with any periods of particularly warm weather most likely being short-lived.
Updated:
