Southerndown (Beach) (Vale of Glamorgan) weather

Here are our top tips to keep you, your friends and family safe at the beach with links to Royal National Lifeboat Institution (RNLI) and Met Office advice.

Waves

Risk of rip currents

Rip currents can occur on any beach but this beach has a greater risk of rips. Take care in the water.

What to do if you get caught in a rip (RNLI)



Forecast days

Yellow weather warning.
Sunrise iconSunrise:
Sunset iconSunset:
L UV
L Pollution
No pollen data.

7 day forecast for Southerndown (Beach)

Today (17 September 2025)
Time
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 symbols Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Light rain Light rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain
Chance of precipitation
≥95%
≥95%
≥95%
≥95%
≥95%
90%
80%
80%
≥95%
≥95%
≥95%
≥95%
≥95%
≥95%
90%
90%
80%
80%
80%
70%
70%
70%
70%
Temperature
14°
14°
14°
15°
15°
15°
16°
16°
17°
17°
17°
18°
18°
18°
18°
18°
18°
18°
18°
18°
17°
17°
17°
Feels like temperature (°C)
13°
13°
13°
14°
13°
13°
13°
13°
13°
13°
14°
14°
14°
15°
15°
15°
15°
15°
15°
15°
15°
15°
16°
Wind direction and speed
S
9
S
9
S
9
S
9
S
10
SSW
14
SW
18
SW
20
SW
21
SW
21
SW
21
SW
20
SW
20
WSW
20
WSW
19
WSW
19
WSW
18
WSW
17
WSW
16
WSW
15
WSW
15
WSW
14
WSW
14
Wind gust (mph)
23
25
25
24
33
36
37
38
38
38
37
36
35
34
32
31
28
26
25
24
24
22
22
Visibility
M
M
M
P
P
M
M
M
M
M
M
M
M
M
M
M
M
M
M
M
G
G
G
Humidity
93%
93%
93%
92%
92%
92%
92%
93%
93%
94%
94%
94%
95%
96%
96%
97%
97%
97%
97%
97%
97%
97%
97%
UV - - - - - 1 1 1 1 1 1 1 1 2 1 1 1 1 1 - - - -
Wind direction and speed
9
9
9
9
10
14
18
20
21
21
21
20
20
20
19
19
18
17
16
15
15
14
14
Height of waves offshore (m)
1.0
1.0
1.0
1.0
1.2
1.5
1.8
1.9
1.9
2.0
2.0
2.0
2.0
2.0
1.9
1.9
1.8
1.8
1.7
1.7
1.7
1.6
1.6
Period of waves offshore (s)
11
11
11
10
7
7
7
8
8
9
9
9
10
10
10
10
10
10
10
10
11
11
11
Direction of waves offshore
Thursday (18 September 2025)
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 symbols Light rain Light rain Light rain Light rain Overcast Light rain Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast
Chance of precipitation
80%
70%
70%
60%
50%
50%
40%
30%
30%
20%
20%
10%
10%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
Temperature (°C)
18°
18°
18°
18°
18°
18°
18°
18°
18°
18°
18°
19°
19°
20°
20°
20°
20°
20°
19°
19°
19°
18°
18°
18°
Feels like temperature (°C)
16°
16°
16°
16°
16°
16°
15°
15°
15°
16°
16°
17°
17°
18°
18°
18°
18°
18°
18°
18°
18°
17°
17°
17°
Wind direction and speed (mph)
WSW
14
SW
14
SW
14
SW
15
SW
15
SW
16
SW
17
SW
16
SW
14
SW
14
SW
14
SW
14
SW
13
SW
13
WSW
13
SW
12
WSW
11
SW
11
SW
10
SSW
9
SSW
9
SSW
9
SSW
9
SSW
9
Wind gust (mph)
24
25
27
28
30
32
32
30
28
28
29
30
31
31
30
30
28
26
23
22
23
22
22
22
Visibility (description)
G
G
G
G
G
VG
VG
VG
VG
VG
VG
VG
VG
E
E
E
VG
VG
VG
VG
VG
VG
VG
VG
Humidity
96%
97%
96%
96%
95%
95%
93%
91%
90%
87%
86%
86%
84%
81%
79%
77%
79%
82%
84%
85%
85%
85%
85%
85%
UV - - - - - - 1 1 1 1 2 2 3 3 3 2 1 1 1 1 - - - -
Wind direction and speed (mph)
14
14
14
15
15
15
15
15
15
14
14
13
13
12
12
11
11
10
10
9
9
9
9
9
Height of waves offshore (m)
1.5
1.5
1.4
1.4
1.4
1.4
1.4
1.4
1.4
1.4
1.5
1.4
1.4
1.3
1.3
1.3
1.3
1.3
1.3
1.3
1.2
1.2
1.2
1.2
Period of waves offshore (s)
11
11
11
11
12
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
10
10
10
Direction of waves offshore
Friday (19 September 2025)
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 symbols Overcast Overcast Overcast Cloudy Cloudy Overcast Overcast Overcast Cloudy Cloudy Cloudy Cloudy Cloudy Sunny intervals Sunny intervals Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy
Chance of precipitation
<5%
<5%
<5%
<5%
<5%
<5%
10%
10%
10%
10%
10%
20%
20%
20%
20%
20%
20%
20%
30%
30%
40%
40%
40%
50%
Temperature (°C)
18°
18°
17°
17°
17°
17°
17°
16°
16°
17°
17°
18°
19°
19°
19°
19°
19°
19°
19°
18°
18°
17°
17°
16°
Feels like temperature (°C)
17°
17°
17°
17°
16°
16°
16°
16°
16°
16°
17°
18°
18°
19°
19°
19°
19°
19°
18°
18°
17°
17°
17°
16°
Wind direction and speed (mph)
SSW
9
S
8
S
8
S
7
S
6
SSE
6
SSE
6
S
6
SSE
6
SSE
6
SSE
7
SSE
7
S
7
SSW
7
SSW
7
SW
7
SW
8
SW
8
WSW
7
WSW
7
WSW
7
WSW
6
SW
6
WSW
6
Wind gust (mph)
21
19
18
14
13
12
12
13
15
16
16
16
15
15
15
17
16
15
15
14
12
12
12
11
Visibility (description)
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
Humidity
85%
86%
86%
87%
89%
88%
89%
89%
87%
85%
85%
80%
78%
77%
76%
77%
77%
79%
82%
86%
90%
90%
92%
92%
UV - - - - - - 1 1 1 1 2 2 2 3 2 2 1 1 1 1 - - - -
Wind direction and speed (mph)
8
7
7
6
6
6
6
6
6
7
7
7
7
7
7
8
8
8
8
7
7
6
6
6
Height of waves offshore (m)
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.1
1.1
1.1
1.1
1.1
1.1
1.0
1.0
1.0
1.0
0.9
0.9
0.9
0.9
0.9
0.9
Period of waves offshore (s)
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
9
9
9
9
9
Direction of waves offshore
Saturday (20 September 2025)
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 symbols Cloudy Cloudy Cloudy Cloudy Light rain Light rain Light rain Light rain Light rain Light rain Light shower day Cloudy Light shower day Light shower day Light shower day Sunny intervals Sunny intervals Sunny intervals Sunny intervals Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night
Chance of precipitation
40%
40%
50%
50%
60%
60%
60%
50%
60%
50%
60%
50%
50%
50%
50%
50%
50%
40%
40%
40%
40%
40%
40%
40%
Temperature (°C)
16°
16°
16°
15°
15°
15°
15°
15°
14°
15°
15°
15°
16°
16°
16°
17°
16°
16°
16°
15°
14°
14°
14°
13°
Feels like temperature (°C)
16°
16°
15°
15°
15°
14°
14°
14°
13°
13°
14°
14°
14°
14°
14°
14°
14°
14°
14°
13°
13°
12°
12°
12°
Wind direction and speed (mph)
SW
6
SW
6
SW
6
W
6
WSW
6
WSW
7
W
7
W
7
W
8
WNW
8
SW
9
WSW
10
WSW
11
W
12
W
12
W
12
W
13
W
13
W
12
WNW
11
WNW
10
WNW
9
NW
9
WNW
8
Wind gust (mph)
11
11
12
13
13
13
12
14
14
14
16
17
21
23
25
24
22
23
21
19
20
19
17
17
Visibility (description)
VG
VG
VG
VG
VG
G
G
G
VG
VG
VG
VG
E
E
E
E
E
E
E
E
E
E
E
E
Humidity
92%
92%
93%
93%
92%
92%
92%
92%
91%
89%
86%
83%
81%
80%
78%
72%
69%
68%
70%
77%
78%
80%
82%
83%
UV - - - - - - 1 1 1 1 1 1 2 4 3 3 2 1 1 1 - - - -
Wind direction and speed (mph)
6
6
6
6
6
7
7
7
8
8
9
10
11
11
12
12
12
11
11
10
10
9
8
8
Height of waves offshore (m)
0.8
0.8
0.8
0.8
0.8
0.8
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
Period of waves offshore (s)
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
Direction of waves offshore
Sunday (21 September 2025)
Time
00:00
01:00
04:00
07:00
10:00
13:00
16:00
19:00
22:00
Weather symbols Partly cloudy night Partly cloudy night Partly cloudy night Sunny intervals Cloudy Cloudy Sunny intervals Cloudy Cloudy
Chance of precipitation
40%
40%
50%
50%
40%
40%
20%
20%
10%
Temperature (°C)
13°
13°
12°
11°
13°
14°
14°
13°
11°
Feels like temperature (°C)
12°
11°
10°
11°
12°
12°
10°
Wind direction and speed (mph)
WNW
8
NW
8
NNW
8
NNW
9
N
12
N
13
N
13
N
12
NNE
10
Wind gust (mph)
17
17
17
23
25
25
24
21
17
Visibility (description)
E
E
VG
VG
VG
VG
VG
VG
VG
Humidity
83%
85%
85%
86%
76%
65%
63%
66%
72%
UV - - - 1 2 3 1 1 -
Wind direction and speed (mph)
8
8
7
9
11
13
13
12
11
Height of waves offshore (m)
0.6
0.6
0.6
0.7
0.8
0.9
0.5
0.4
0.5
Period of waves offshore (s)
9
9
8
3
4
4
4
3
3
Direction of waves offshore
Monday (22 September 2025)
Time
01:00
04:00
07:00
10:00
13:00
16:00
19:00
22:00
Weather symbols Partly cloudy night Partly cloudy night Sunny intervals Sunny intervals Cloudy Sunny intervals Partly cloudy night Partly cloudy night
Chance of precipitation
20%
10%
10%
10%
10%
10%
10%
<5%
Temperature (°C)
11°
10°
12°
15°
15°
14°
12°
Feels like temperature (°C)
10°
12°
13°
11°
10°
Wind direction and speed (mph)
NNE
10
NNE
10
NNE
10
NE
11
NE
12
NE
12
NE
11
NE
10
Wind gust (mph)
16
16
17
19
18
18
15
14
Visibility (description)
VG
VG
VG
VG
VG
VG
VG
VG
Humidity
75%
77%
78%
66%
56%
52%
60%
68%
UV - - 1 2 4 1 1 -
Wind direction and speed (mph)
11
Height of waves offshore (m)
0.5
Period of waves offshore (s)
3
Direction of waves offshore
Tuesday (23 September 2025)
Time
01:00
04:00
07:00
10:00
13:00
16:00
19:00
22:00
Weather symbols Partly cloudy night Partly cloudy night Sunny intervals Sunny intervals Sunny intervals Sunny intervals Partly cloudy night Partly cloudy night
Chance of precipitation
<5%
10%
10%
10%
10%
10%
10%
10%
Temperature (°C)
11°
10°
13°
15°
16°
14°
13°
Feels like temperature (°C)
10°
13°
13°
12°
11°
Wind direction and speed (mph)
NE
10
NE
9
NE
10
NE
11
NE
12
NE
12
NE
11
NNE
10
Wind gust (mph)
14
13
16
18
18
18
16
15
Visibility (description)
VG
VG
VG
VG
VG
VG
VG
VG
Humidity
75%
77%
81%
71%
61%
56%
65%
74%
UV - - 1 2 4 1 1 -
Wind direction and speed (mph)
Height of waves offshore (m)
Period of waves offshore (s)
Direction of waves offshore

Tide times

Wednesday 17 September

Tide times and heights are from Porthcawl tidal station which is 4.3 miles away. So times may be different at this beach. What does this mean?

Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

Tide times

Wednesday 17 September

Tide times and heights are from Porthcawl tidal station which is 4.3 miles away. So times may be different at this beach. What does this mean?

Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

Tide times

Wednesday 17 September

Tide times and heights are from Porthcawl tidal station which is 4.3 miles away. So times may be different at this beach. What does this mean?

Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

Tide times

Wednesday 17 September

Tide times and heights are from Porthcawl tidal station which is 4.3 miles away. So times may be different at this beach. What does this mean?

Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

Tide times

Thursday 18 September

Tide times and heights are from Porthcawl tidal station which is 4.3 miles away. So times may be different at this beach. What does this mean?

Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

Tide times

Thursday 18 September

Tide times and heights are from Porthcawl tidal station which is 4.3 miles away. So times may be different at this beach. What does this mean?

Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

Tide times

Thursday 18 September

Tide times and heights are from Porthcawl tidal station which is 4.3 miles away. So times may be different at this beach. What does this mean?

Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

Tide times

Thursday 18 September

Tide times and heights are from Porthcawl tidal station which is 4.3 miles away. So times may be different at this beach. What does this mean?

Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

Tide times

Friday 19 September

Tide times and heights are from Porthcawl tidal station which is 4.3 miles away. So times may be different at this beach. What does this mean?

Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

Tide times

Friday 19 September

Tide times and heights are from Porthcawl tidal station which is 4.3 miles away. So times may be different at this beach. What does this mean?

Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

Tide times

Friday 19 September

Tide times and heights are from Porthcawl tidal station which is 4.3 miles away. So times may be different at this beach. What does this mean?

Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

Tide times

Friday 19 September

Tide times and heights are from Porthcawl tidal station which is 4.3 miles away. So times may be different at this beach. What does this mean?

Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

Tide times

Saturday 20 September

Tide times and heights are from Porthcawl tidal station which is 4.3 miles away. So times may be different at this beach. What does this mean?

Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

Tide times

Saturday 20 September

Tide times and heights are from Porthcawl tidal station which is 4.3 miles away. So times may be different at this beach. What does this mean?

Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

Tide times

Saturday 20 September

Tide times and heights are from Porthcawl tidal station which is 4.3 miles away. So times may be different at this beach. What does this mean?

Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

Tide times

Saturday 20 September

Tide times and heights are from Porthcawl tidal station which is 4.3 miles away. So times may be different at this beach. What does this mean?

Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

Tide times

Sunday 21 September

Tide times and heights are from Porthcawl tidal station which is 4.3 miles away. So times may be different at this beach. What does this mean?

Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

Tide times

Sunday 21 September

Tide times and heights are from Porthcawl tidal station which is 4.3 miles away. So times may be different at this beach. What does this mean?

Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

Tide times

Sunday 21 September

Tide times and heights are from Porthcawl tidal station which is 4.3 miles away. So times may be different at this beach. What does this mean?

Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

Tide times

Sunday 21 September

Tide times and heights are from Porthcawl tidal station which is 4.3 miles away. So times may be different at this beach. What does this mean?

Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

Tide times

Monday 22 September

Tide times and heights are from Porthcawl tidal station which is 4.3 miles away. So times may be different at this beach. What does this mean?

Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

Tide times

Monday 22 September

Tide times and heights are from Porthcawl tidal station which is 4.3 miles away. So times may be different at this beach. What does this mean?

Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

Tide times

Monday 22 September

Tide times and heights are from Porthcawl tidal station which is 4.3 miles away. So times may be different at this beach. What does this mean?

Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

Tide times

Monday 22 September

Tide times and heights are from Porthcawl tidal station which is 4.3 miles away. So times may be different at this beach. What does this mean?

Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

Tide times

Tuesday 23 September

Tide times and heights are from Porthcawl tidal station which is 4.3 miles away. So times may be different at this beach. What does this mean?

Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

Tide times

Tuesday 23 September

Tide times and heights are from Porthcawl tidal station which is 4.3 miles away. So times may be different at this beach. What does this mean?

Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

Tide times

Tuesday 23 September

Tide times and heights are from Porthcawl tidal station which is 4.3 miles away. So times may be different at this beach. What does this mean?

Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

Tide times

Tuesday 23 September

Tide times and heights are from Porthcawl tidal station which is 4.3 miles away. So times may be different at this beach. What does this mean?

Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

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Wales weather forecast

Headline:

Remaining changeable with rain tonight.

This Evening and Tonight:

Cloudy this evening then turning increasingly wet and windy overnight with a band of heavy and persistent rain pushing eastwards. Rain most persistent over the mountains, with flooding possible. Mild overnight. Minimum temperature 11 °C.

Wednesday:

Heavy, persistent rain clearing eastwards through the morning, though remaining cloudy with outbreaks of patchy rain and drizzle throughout the day, turning heavy at times over the hills. Breezy. Maximum temperature 18 °C.

Outlook for Thursday to Saturday:

Remaining changeable with showers or longer spells of rain at times, though brighter interludes are possible. Often breezy. A little milder and more humid by the end of the week.

Updated:

UK long range weather forecast

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