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.
Wednesday
| Time |
20:00
|
21:00
|
22:00
|
23:00
|
|---|---|---|---|---|
|
Weather
|
||||
| Weather | ||||
| Temperature (°C) | ||||
| Temperature |
15.5° Celsius
|
15.5° Celsius
|
14.7° Celsius
|
15.8° Celsius
|
| Wind direction and speed (mph) | ||||
| Wind direction and speed |
W
11
|
W
15
|
WSW
16
|
W
19
|
| Wind gust (mph) | ||||
| Wind gust |
18
|
23
|
28
|
28
|
| Visibility (description) | ||||
| Visibility |
E
|
E
|
E
|
VG
|
| Humidity | ||||
| Humidity | 72 % | 76 % | 87 % | 78 % |
| Pressure (hPa) | ||||
| Pressure | 1,019 hPa | 1,019 hPa | 1,018 hPa | 1,017 hPa |
| Pressure tendency | ||||
| Pressure tendency | F | F | F | F |
Thursday
| 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 |
16.1° Celsius
|
15.4° Celsius
|
16.1° Celsius
|
16.1° Celsius
|
15.3° Celsius
|
15.3° Celsius
|
15.9° Celsius
|
16.1° Celsius
|
15.4° Celsius
|
15.6° Celsius
|
16.1° Celsius
|
15.9° Celsius
|
16.7° Celsius
|
16.6° Celsius
|
16.3° Celsius
|
16.8° Celsius
|
17.3° Celsius
|
16.5° Celsius
|
16.1° Celsius
|
15.5° Celsius
|
15.2° Celsius
|
15.3° Celsius
|
15.3° Celsius
|
14.9° Celsius
|
| Wind direction and speed (mph) | ||||||||||||||||||||||||
| Wind direction and speed |
W
18
|
WSW
24
|
WSW
19
|
WSW
19
|
WSW
21
|
WSW
21
|
WSW
20
|
WNW
19
|
WNW
14
|
WNW
15
|
WNW
15
|
NW
13
|
WNW
16
|
W
17
|
W
19
|
W
18
|
W
17
|
W
16
|
W
17
|
W
17
|
WNW
13
|
WNW
15
|
WNW
12
|
WNW
15
|
| Wind gust (mph) | ||||||||||||||||||||||||
| Wind gust |
30
|
38
|
32
|
30
|
30
|
37
|
34
|
36
|
26
|
22
|
23
|
25
|
24
|
30
|
30
|
27
|
31
|
29
|
28
|
29
|
29
|
22
|
21
|
23
|
| Visibility (description) | ||||||||||||||||||||||||
| Visibility |
E
|
VG
|
VG
|
VG
|
G
|
VP
|
G
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity | ||||||||||||||||||||||||
| Humidity | 76 % | 85 % | 79 % | 80 % | 91 % | 95 % | 97 % | 89 % | 79 % | 82 % | 74 % | 72 % | 63 % | 64 % | 64 % | 65 % | 62 % | 68 % | 68 % | 73 % | 74 % | 73 % | 71 % | 75 % |
| Pressure (hPa) | ||||||||||||||||||||||||
| Pressure | 1,016 hPa | 1,015 hPa | 1,014 hPa | 1,013 hPa | 1,012 hPa | 1,011 hPa | 1,010 hPa | 1,010 hPa | 1,011 hPa | 1,011 hPa | 1,012 hPa | 1,012 hPa | 1,012 hPa | 1,012 hPa | 1,012 hPa | 1,012 hPa | 1,012 hPa | 1,012 hPa | 1,012 hPa | 1,012 hPa | 1,013 hPa | 1,013 hPa | 1,014 hPa | 1,013 hPa |
| Pressure tendency | ||||||||||||||||||||||||
| Pressure tendency | F | F | F | F | F | F | F | F | F | R | R | R | R | R | R | F | R | F | S | R | R | R | R | R |
Friday
| 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
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Weather
|
||||||||||||||||||||
| Weather | ||||||||||||||||||||
| Temperature (°C) | ||||||||||||||||||||
| Temperature |
13.7° Celsius
|
13.5° Celsius
|
12.9° Celsius
|
13.3° Celsius
|
13.9° Celsius
|
14.0° Celsius
|
13.7° Celsius
|
13.7° Celsius
|
14.1° Celsius
|
14.1° Celsius
|
16.8° Celsius
|
16.6° Celsius
|
16.6° Celsius
|
17.1° Celsius
|
17.3° Celsius
|
16.0° Celsius
|
16.6° Celsius
|
17.3° Celsius
|
17.2° Celsius
|
17.2° Celsius
|
| Wind direction and speed (mph) | ||||||||||||||||||||
| Wind direction and speed |
WNW
9
|
NW
9
|
NW
6
|
NW
8
|
WNW
11
|
WNW
13
|
WNW
14
|
NW
10
|
NW
10
|
WNW
6
|
W
15
|
W
15
|
W
19
|
WSW
19
|
WSW
19
|
W
20
|
WSW
20
|
WSW
20
|
WSW
23
|
WSW
23
|
| Wind gust (mph) | ||||||||||||||||||||
| Wind gust |
22
|
18
|
13
|
13
|
16
|
20
|
22
|
17
|
15
|
14
|
22
|
24
|
28
|
31
|
31
|
30
|
29
|
30
|
33
|
36
|
| Visibility (description) | ||||||||||||||||||||
| Visibility |
VG
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
| Humidity | ||||||||||||||||||||
| Humidity | 79 % | 78 % | 81 % | 81 % | 80 % | 79 % | 79 % | 81 % | 81 % | 81 % | 70 % | 70 % | 70 % | 71 % | 73 % | 77 % | 80 % | 74 % | 75 % | 81 % |
| Pressure (hPa) | ||||||||||||||||||||
| Pressure | 1,013 hPa | 1,014 hPa | 1,014 hPa | 1,014 hPa | 1,014 hPa | 1,014 hPa | 1,014 hPa | 1,014 hPa | 1,014 hPa | 1,015 hPa | 1,015 hPa | 1,015 hPa | 1,015 hPa | 1,015 hPa | 1,015 hPa | 1,014 hPa | 1,014 hPa | 1,014 hPa | 1,014 hPa | 1,013 hPa |
| Pressure tendency | ||||||||||||||||||||
| Pressure tendency | R | S | R | R | R | R | F | F | R | R | R | R | R | R | S | F | F | F | F | F |
St-Athan weather map
View the weather with our interactive map
Loading map...
Observation taken at 18:05, Fri
Updated 19:05 (UTC+1) on Fri 18 Sep 2026
Location Details
Location: 51.405, -3.44
Altitude: 49 m above sea level