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Read moreSt-Athan (Vale of Glamorgan) weather
Find a forecast
Forecast days
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Today. Maximum daytime temperature: 17 degrees Celsius; Minimum nighttime temperature: 5 degrees Celsius. Clear. Sunrise: 07:09; Sunset: 18:59. UV: Moderate; Pollution: Low; No pollen data.
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Monday 28 September. Maximum daytime temperature: 17 degrees Celsius; Minimum nighttime temperature: 9 degrees Celsius. Partly cloudy changing to light rain in the afternoon. Sunrise: 07:10; Sunset: 18:57. UV: Low; Pollution: Low; No pollen data.
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Tuesday 29 September. Maximum daytime temperature: 17 degrees Celsius; Minimum nighttime temperature: 9 degrees Celsius. Clear changing to partly cloudy by early evening. Sunrise: 07:12; Sunset: 18:55. UV: Moderate; Pollution: Low; No pollen data.
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Wednesday 30 September. Maximum daytime temperature: 16 degrees Celsius; Minimum nighttime temperature: 9 degrees Celsius. Cloudy changing to light rain by late morning. Sunrise: 07:14; Sunset: 18:52. UV: Low; Pollution: Low; No pollen data.
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Thursday 1 October. Maximum daytime temperature: 15 degrees Celsius; Minimum nighttime temperature: 10 degrees Celsius. Partly cloudy changing to light rain by lunchtime. Sunrise: 07:15; Sunset: 18:50. UV: Low; Pollution: Low; No pollen data.
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Friday 2 October. Maximum daytime temperature: 14 degrees Celsius; Minimum nighttime temperature: 8 degrees Celsius. Partly cloudy changing to sunny intervals by late morning. Sunrise: 07:17; Sunset: 18:48. UV: Moderate;
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Saturday 3 October. Maximum daytime temperature: 14 degrees Celsius; Minimum nighttime temperature: 8 degrees Celsius. Partly cloudy changing to sunny intervals by late morning. Sunrise: 07:19; Sunset: 18:46. UV: Low;
Seven day forecast for St-Athan
Today (27 September 2020)
| Time | Now | 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% | <5% | <5% | <5% | <5% | <5% | <5% | <5% | <5% | <5% | <5% | <5% | <5% |
| Temperature (°C) |
8°
|
8°
|
6°
|
7°
|
10°
|
12°
|
13°
|
15°
|
16°
|
16°
|
16°
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16°
|
15°
|
14°
|
12°
|
10°
|
9°
|
9°
|
8°
|
| Feels like temperature (°C) | 5° | 5° | 4° | 6° | 8° | 10° | 12° | 13° | 13° | 14° | 14° | 14° | 13° | 12° | 10° | 8° | 8° | 7° | 6° |
| Wind direction and speed (miles per hour) |
NW
9
|
NW
10
|
NW
6
|
WNW
5
|
WNW
7
|
NW
9
|
NW
7
|
NNW
8
|
NNW
10
|
NW
11
|
NW
11
|
NW
11
|
NW
11
|
NW
10
|
NW
9
|
NW
8
|
NW
8
|
NW
8
|
NW
7
|
| Wind gust (miles per hour) | 23 | 21 | 15 | 10 | 13 | 12 | 10 | 12 | 15 | 16 | 17 | 18 | 19 | 20 | 19 | 17 | 15 | 14 | 14 |
| Visibility | VG | VG | G | G | VG | VG | VG | VG | VG | VG | VG | VG | VG | VG | VG | VG | VG | VG | G |
| Humidity | 82% | 81% | 87% | 82% | 72% | 63% | 57% | 50% | 49% | 49% | 51% | 52% | 56% | 63% | 70% | 75% | 77% | 81% | 83% |
| UV | - | - | - | 1 | 1 | 2 | 3 | 3 | 4 | 3 | 2 | 2 | 1 | 1 | - | - | - | - | - |
Monday (28 September 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% | <5% | <5% | <5% | 10% | 10% | 10% | 10% | 10% | 10% | 20% | 50% | 50% | 10% | 10% | <5% | <5% | <5% |
| Temperature (°C) |
8°
|
8°
|
7°
|
7°
|
6°
|
6°
|
6°
|
6°
|
7°
|
10°
|
12°
|
13°
|
14°
|
15°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
15°
|
14°
|
13°
|
12°
|
| Feels like temperature (°C) | 6° | 6° | 5° | 5° | 5° | 4° | 5° | 5° | 7° | 10° | 12° | 13° | 14° | 14° | 15° | 14° | 15° | 15° | 14° | 14° | 14° | 12° | 11° | 11° |
| Wind direction and speed (miles per hour) |
NW
7
|
NW
6
|
NW
6
|
NNW
6
|
NNW
6
|
NNW
5
|
NNW
6
|
NNW
6
|
NNW
5
|
NNW
4
|
NW
4
|
SSW
5
|
SW
6
|
SW
7
|
W
9
|
WSW
11
|
WSW
11
|
WSW
10
|
WSW
10
|
W
9
|
WNW
8
|
WNW
8
|
WNW
9
|
WNW
9
|
| Wind gust (miles per hour) | 12 | 12 | 13 | 13 | 11 | 11 | 10 | 9 | 8 | 8 | 8 | 9 | 10 | 14 | 16 | 19 | 19 | 18 | 18 | 17 | 16 | 15 | 17 | 16 |
| Visibility | VG | VG | VG | VG | VG | VG | G | G | G | G | G | VG | G | G | VG | VG | VG | G | VG | G | G | G | G | G |
| Humidity | 85% | 86% | 86% | 86% | 87% | 86% | 87% | 86% | 83% | 80% | 79% | 81% | 84% | 86% | 87% | 89% | 90% | 92% | 93% | 95% | 93% | 92% | 92% | 93% |
| UV | - | - | - | - | - | - | - | - | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | - | - | - | - | - |
Tuesday (29 September 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 | <5% | <5% | <5% | <5% | <5% | 10% | 10% | <5% | 10% |
| Temperature (°C) |
12°
|
12°
|
10°
|
9°
|
13°
|
15°
|
15°
|
13°
|
11°
|
| Feels like temperature (°C) | 10° | 10° | 9° | 9° | 12° | 14° | 14° | 12° | 11° |
| Wind direction and speed (miles per hour) |
NW
8
|
NW
7
|
NW
6
|
NNW
5
|
NNW
6
|
W
8
|
WSW
10
|
WSW
8
|
WSW
5
|
| Wind gust (miles per hour) | 14 | 13 | 10 | 8 | 11 | 15 | 17 | 13 | 10 |
| Visibility | VG | VG | G | G | VG | VG | VG | VG | VG |
| Humidity | 92% | 93% | 93% | 94% | 87% | 71% | 68% | 81% | 87% |
| UV | - | - | - | - | 2 | 3 | 1 | - | - |
Wednesday (30 September 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 | 10% | 10% | 20% | 60% | 80% | 70% | 40% | 20% |
| Temperature (°C) |
12°
|
12°
|
12°
|
14°
|
14°
|
15°
|
14°
|
12°
|
| Feels like temperature (°C) | 11° | 11° | 10° | 12° | 12° | 12° | 11° | 10° |
| Wind direction and speed (miles per hour) |
SSW
6
|
S
7
|
SSE
9
|
SSE
12
|
S
13
|
SW
14
|
WSW
12
|
W
10
|
| Wind gust (miles per hour) | 10 | 13 | 16 | 21 | 24 | 25 | 22 | 19 |
| Visibility | VG | G | M | M | M | M | G | G |
| Humidity | 88% | 89% | 91% | 89% | 87% | 87% | 89% | 89% |
| UV | - | - | - | 1 | 2 | 1 | - | - |
Thursday (1 October 2020)
| Time | 01:00 | 04:00 | 07:00 | 10:00 | 13:00 | 16:00 | 19:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|
| Weather symbol |
|
|
|
|
|
|
|
|
| Chance of precipitation | 10% | 20% | 10% | 20% | 60% | 60% | 60% | 20% |
| Temperature (°C) |
11°
|
11°
|
10°
|
12°
|
13°
|
13°
|
12°
|
12°
|
| Feels like temperature (°C) | 9° | 9° | 8° | 10° | 11° | 11° | 10° | 9° |
| Wind direction and speed (miles per hour) |
W
10
|
W
10
|
W
9
|
WSW
11
|
SW
14
|
SW
15
|
SW
13
|
NNW
12
|
| Wind gust (miles per hour) | 19 | 19 | 18 | 22 | 26 | 27 | 24 | 22 |
| Visibility | G | G | G | G | G | G | G | G |
| Humidity | 88% | 88% | 89% | 81% | 77% | 79% | 85% | 85% |
| UV | - | - | - | 1 | 2 | 1 | - | - |
Friday (2 October 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% | 20% | 20% | 40% | 40% | 20% | 10% |
| Temperature (°C) |
11°
|
11°
|
10°
|
11°
|
13°
|
12°
|
11°
|
10°
|
| Feels like temperature (°C) | 9° | 8° | 7° | 9° | 10° | 10° | 9° | 8° |
| Wind direction and speed (miles per hour) |
NW
11
|
W
12
|
WNW
12
|
WNW
13
|
W
15
|
W
15
|
W
13
|
W
12
|
| Wind gust (miles per hour) | 22 | 22 | 23 | 25 | 28 | 27 | 24 | 23 |
| Visibility | G | G | G | G | VG | VG | VG | G |
| Humidity | 86% | 87% | 88% | 81% | 71% | 72% | 78% | 82% |
| UV | - | - | - | 1 | 3 | 1 | - | - |
Saturday (3 October 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 | 10% | 10% | 10% | 10% | 20% | 40% | 20% | 10% |
| Temperature (°C) |
10°
|
10°
|
9°
|
11°
|
12°
|
13°
|
11°
|
11°
|
| Feels like temperature (°C) | 8° | 7° | 7° | 9° | 10° | 10° | 9° | 9° |
| Wind direction and speed (miles per hour) |
W
12
|
W
12
|
W
12
|
WSW
13
|
WSW
15
|
WSW
15
|
WSW
12
|
NW
11
|
| Wind gust (miles per hour) | 23 | 23 | 23 | 25 | 28 | 27 | 23 | 21 |
| Visibility | G | G | G | G | G | G | G | G |
| Humidity | 83% | 84% | 85% | 78% | 72% | 72% | 81% | 84% |
| UV | - | - | - | 1 | 2 | 1 | - | - |
Wales weather forecast
Headline:
Fine today with plenty of sunny spells.
Today:
After a cold and breezy start today, it will be fine with plenty of sunny spells and winds easing throughout the day. Feeling generally cool but pleasant in the sunshine. Maximum temperature 17 °C.
Tonight:
Remaining mostly dry tonight with a mixture of clear spells and patchy cloud. Another cold night with a chance of frost Minimum temperature 1 °C.
Monday:
Generally cloudy on Monday with outbreaks of light rain throughout the day. However, it will likely be warmer and less windy than the weekend. Maximum temperature 18 °C.
Outlook for Tuesday to Thursday:
Mostly dry with sunny spells on Tuesday. Turning increasingly unsettled and windy from Wednesday with rain, sometimes heavy, moving in. Similar on Thursday, with only brief dry interludes.
Updated:
UK long range weather forecast
An unsettled period, with plenty of showers and some occasional longer spells of rain across much of the country. Some drier and brighter spells are possible at times, which will most likely in southern and eastern areas. The heaviest and most prolonged spells of rain will be in the north and west to begin with but, with time, they are likely to become more widespread across the UK. It will be generally windy, with a risk of gales at times (potentially severe), particularly in northern and northwestern regions. Feeling cold through much of early October, especially where there is persistent rain and strong winds. Frost is possible at night in any calmer period, especially in northern Britain.
Updated:
A potential change in the weather is anticipated around the middle of October. Whilst further rain and strong winds are likely at times, spells of fine and dry weather could become more widespread and long-lived. At night, these calmer conditions could allow frost and fog to form more readily. At this time of year, there is potential for fog to linger well into the daytime. Overall, temperatures probably recovering close to the seasonal average for mid-October.
Updated:
Nearest forecasts
- Llantwit Major 1.9 miles
- Fontygary Bay (Beach) 3.6 miles
- Cowbridge 3.9 miles
- Cardiff International Airport 4.0 miles
- Cold Knap, Barry (Beach) 6.2 miles
- Dyffryn House Gardens 6.2 miles
- Barry 6.9 miles
- Whitmore Bay, Barry (Beach) 7.2 miles
- Barry Island Pleasure Park 7.6 miles
- Southerndown (Beach) 7.7 miles