St-Athan (Vale of Glamorgan) last 24 hours weather
Find a forecast
Nearest forecast to your detected location
We are showing you the observations for the nearest location to Porthcawl (12.5 miles, 39 m higher).
Observation days
No pollution data.
No pollen data.
No pollution data.
No pollen data.
No pollution data.
No pollen data.
Today
| Time |
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
|
||||||||||||||
| Weather | ||||||||||||||
| Temperature (°C) | ||||||||||||||
| Temperature |
14.6° Celsius
|
15.0° Celsius
|
15.7° Celsius
|
16.2° Celsius
|
16.2° Celsius
|
16.2° Celsius
|
16.1° Celsius
|
15.6° Celsius
|
15.6° Celsius
|
15.4° Celsius
|
14.8° Celsius
|
13.8° Celsius
|
13.1° Celsius
|
13.0° Celsius
|
| Wind direction and speed (mph) | ||||||||||||||
| Wind direction and speed |
W
17
|
W
14
|
W
13
|
W
18
|
W
18
|
W
19
|
W
18
|
W
15
|
W
15
|
W
13
|
W
13
|
W
11
|
W
9
|
W
8
|
| Wind gust (mph) | ||||||||||||||
| Wind gust |
25
|
26
|
21
|
23
|
24
|
26
|
25
|
26
|
26
|
22
|
21
|
17
|
18
|
12
|
| Visibility (description) | ||||||||||||||
| Visibility |
VG
|
VG
|
VG
|
VG
|
E
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity | ||||||||||||||
| Humidity | 70 % | 66 % | 68 % | 74 % | 67 % | 72 % | 72 % | 72 % | 74 % | 73 % | 76 % | 83 % | 87 % | 90 % |
| Pressure (hPa) | ||||||||||||||
| Pressure | 1,024 hPa | 1,025 hPa | 1,024 hPa | 1,024 hPa | 1,024 hPa | 1,024 hPa | 1,024 hPa | 1,023 hPa | 1,023 hPa | 1,023 hPa | 1,023 hPa | 1,023 hPa | 1,023 hPa | 1,023 hPa |
| Pressure tendency | ||||||||||||||
| Pressure tendency | R | R | S | F | F | F | F | F | F | F | F | F | R | R |
Sunday
| 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
|
||||||||||||||||||||||||
| Weather | ||||||||||||||||||||||||
| Temperature (°C) | ||||||||||||||||||||||||
| Temperature |
12.3° Celsius
|
12.7° Celsius
|
11.8° Celsius
|
11.0° Celsius
|
10.7° Celsius
|
10.0° Celsius
|
10.3° Celsius
|
12.3° Celsius
|
13.5° Celsius
|
15.0° Celsius
|
16.1° Celsius
|
16.6° Celsius
|
17.1° Celsius
|
18.4° Celsius
|
19.5° Celsius
|
19.9° Celsius
|
20.6° Celsius
|
19.9° Celsius
|
20.9° Celsius
|
20.5° Celsius
|
19.3° Celsius
|
17.6° Celsius
|
17.1° Celsius
|
16.6° Celsius
|
| Wind direction and speed (mph) | ||||||||||||||||||||||||
| Wind direction and speed |
W
5
|
WNW
3
|
W
3
|
N
4
|
N
3
|
NNE
3
|
NNE
4
|
NNE
3
|
E
5
|
ESE
7
|
E
8
|
ESE
7
|
ESE
6
|
ESE
5
|
ESE
5
|
SSE
6
|
ESE
3
|
SE
5
|
ESE
4
|
ESE
5
|
E
10
|
E
11
|
ENE
11
|
E
12
|
| Wind gust (mph) | ||||||||||||||||||||||||
| Wind gust |
11
|
8
|
5
|
5
|
4
|
5
|
6
|
6
|
8
|
10
|
12
|
12
|
12
|
12
|
12
|
11
|
9
|
10
|
8
|
8
|
13
|
17
|
17
|
17
|
| Visibility (description) | ||||||||||||||||||||||||
| Visibility |
G
|
G
|
VG
|
VG
|
VG
|
VG
|
VG
|
E
|
VG
|
VG
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
| Humidity | ||||||||||||||||||||||||
| Humidity | 92 % | 93 % | 93 % | 96 % | 95 % | 94 % | 90 % | 84 % | 78 % | 77 % | 67 % | 69 % | 62 % | 60 % | 57 % | 53 % | 55 % | 57 % | 57 % | 57 % | 59 % | 68 % | 69 % | 70 % |
| Pressure (hPa) | ||||||||||||||||||||||||
| Pressure | 1,023 hPa | 1,023 hPa | 1,023 hPa | 1,023 hPa | 1,022 hPa | 1,022 hPa | 1,022 hPa | 1,022 hPa | 1,022 hPa | 1,022 hPa | 1,021 hPa | 1,021 hPa | 1,021 hPa | 1,021 hPa | 1,020 hPa | 1,020 hPa | 1,019 hPa | 1,019 hPa | 1,018 hPa | 1,018 hPa | 1,017 hPa | 1,017 hPa | 1,017 hPa | 1,017 hPa |
| Pressure tendency | ||||||||||||||||||||||||
| Pressure tendency | R | F | F | F | F | F | F | F | F | R | F | F | F | F | F | F | F | F | F | F | F | F | F | F |
Monday
| Time |
00:00
|
01:00
|
02:00
|
03:00
|
04:00
|
05:00
|
06:00
|
07:00
|
08:00
|
09:00
|
|---|---|---|---|---|---|---|---|---|---|---|
|
Weather
|
||||||||||
| Weather | ||||||||||
| Temperature (°C) | ||||||||||
| Temperature |
16.1° Celsius
|
14.5° Celsius
|
14.4° Celsius
|
13.7° Celsius
|
14.2° Celsius
|
13.8° Celsius
|
13.4° Celsius
|
15.0° Celsius
|
16.0° Celsius
|
16.9° Celsius
|
| Wind direction and speed (mph) | ||||||||||
| Wind direction and speed |
E
12
|
E
9
|
ENE
8
|
E
11
|
E
9
|
E
9
|
E
10
|
E
14
|
E
16
|
E
17
|
| Wind gust (mph) | ||||||||||
| Wind gust |
18
|
16
|
12
|
13
|
13
|
13
|
13
|
22
|
23
|
24
|
| Visibility (description) | ||||||||||
| Visibility |
E
|
E
|
E
|
E
|
E
|
E
|
VG
|
VG
|
E
|
E
|
| Humidity | ||||||||||
| Humidity | 74 % | 81 % | 81 % | 87 % | 83 % | 83 % | 89 % | 82 % | 73 % | 72 % |
| Pressure (hPa) | ||||||||||
| Pressure | 1,017 hPa | 1,017 hPa | 1,016 hPa | 1,016 hPa | 1,015 hPa | 1,015 hPa | 1,015 hPa | 1,014 hPa | 1,014 hPa | 1,013 hPa |
| Pressure tendency | ||||||||||
| Pressure tendency | F | F | F | F | F | F | F | F | F | F |
St-Athan weather map
View the weather with our interactive map
Loading map...
Observation taken at 08:05, Mon
Updated 09:05 (UTC+1) on Mon 15 Jun 2026
Location Details
Location: 51.405, -3.44
Altitude: 49m above sea level