Cold Knap, Barry (Beach) (Vale of Glamorgan) weather
Find a forecast
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.
- Head to a lifeguarded beach; check the RNLI lifeguarded beach tool
- Follow RNLI Float to Live advice if you find yourself struggling in the water
- Know what to do if you get caught in a rip current (RNLI)
- Check the tide times to avoid getting cut off by the tide coming in
- Call 999 and ask for the coastguard in an emergency
- Learn more about staying safe at the beach
Highest possible:
Lowest possible:
Today
(19 September 2024)
| Time |
16:00
|
17:00
|
18:00
|
19:00
|
20:00
|
21:00
|
22:00
|
23:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols |
|
|
|
|
|
|
|
|
| Chance of precipitation |
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
| Temperature |
22°
71°
|
21°
70°
|
20°
68°
|
19°
66°
|
18°
64°
|
17°
63°
|
16°
61°
|
16°
60°
|
| Feels like temperature (°C) |
19°
66°
|
19°
65°
|
18°
64°
|
16°
61°
|
15°
59°
|
15°
58°
|
14°
57°
|
13°
56°
|
| Wind direction and speed |
NE
15
24
13
7
4
|
NE
14
22
12
6
4
|
NNE
14
23
12
6
4
|
NNE
14
23
12
6
4
|
NE
15
24
13
7
4
|
NE
15
24
13
7
4
|
NE
15
24
13
7
4
|
NE
15
24
13
7
4
|
| Wind gust (mph) |
27
44
23
12
6
|
27
44
23
12
6
|
28
45
24
12
6
|
29
46
25
13
6
|
29
47
25
13
6
|
29
47
25
13
6
|
29
47
25
13
6
|
28
45
24
12
6
|
| Visibility |
G
15
|
G
15
|
G
15
|
G
14
|
G
14
|
G
13
|
G
12
|
G
11
|
| Humidity |
66%
|
69%
|
73%
|
74%
|
76%
|
82%
|
85%
|
85%
|
| UV |
2
|
1
|
1
|
1
|
-
|
-
|
-
|
-
|
| Wind direction and speed |
15
24
13
7
4
|
15
24
13
7
4
|
15
24
13
7
4
|
13
21
11
6
4
|
12
20
10
5
3
|
13
21
11
6
4
|
13
21
11
6
4
|
15
25
13
7
4
|
| Height of waves offshore (m) |
0.5
|
0.5
|
0.4
|
0.4
|
0.4
|
0.4
|
0.4
|
0.4
|
| Period of waves offshore (s) |
5
|
5
|
7
|
7
|
7
|
7
|
7
|
7
|
| Direction of waves offshore |
|
|
|
|
|
|
|
|
Friday
(20 September 2024)
| 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 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Chance of precipitation |
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
10%
|
40%
|
60%
|
70%
|
70%
|
50%
|
30%
|
20%
|
20%
|
<5%
|
<5%
|
| Temperature (°C) |
15°
60°
|
15°
59°
|
15°
59°
|
15°
59°
|
15°
59°
|
15°
58°
|
14°
58°
|
14°
57°
|
14°
57°
|
15°
58°
|
15°
60°
|
17°
62°
|
18°
64°
|
19°
66°
|
20°
68°
|
20°
68°
|
20°
68°
|
19°
66°
|
18°
65°
|
17°
63°
|
16°
62°
|
16°
61°
|
16°
61°
|
16°
60°
|
| Feels like temperature (°C) |
13°
55°
|
13°
55°
|
13°
55°
|
13°
55°
|
13°
55°
|
12°
54°
|
12°
54°
|
12°
53°
|
12°
53°
|
12°
54°
|
13°
55°
|
14°
57°
|
15°
59°
|
16°
62°
|
18°
64°
|
18°
65°
|
18°
64°
|
18°
64°
|
17°
62°
|
16°
61°
|
15°
60°
|
15°
59°
|
15°
58°
|
14°
58°
|
| Wind direction and speed (mph) |
NE
15
25
13
7
4
|
NE
15
24
13
7
4
|
ENE
14
22
12
6
4
|
NE
13
22
11
6
4
|
NE
13
21
11
6
4
|
NE
13
21
11
6
4
|
NE
13
21
11
6
4
|
NE
13
21
11
6
4
|
NE
14
22
12
6
4
|
NE
14
22
12
6
4
|
NE
14
23
12
6
4
|
NE
14
23
12
6
4
|
NE
14
23
12
6
4
|
ENE
14
22
12
6
4
|
NE
12
20
10
5
3
|
NE
11
18
10
5
3
|
NE
11
17
10
5
3
|
NE
10
16
9
4
3
|
NE
9
14
8
4
3
|
NNE
8
13
7
4
3
|
NNE
8
13
7
4
3
|
NE
9
15
8
4
3
|
NE
10
17
9
5
3
|
NE
11
17
10
5
3
|
| Wind gust (mph) |
28
45
24
12
6
|
27
44
23
12
6
|
26
42
23
12
6
|
26
43
23
12
6
|
27
43
23
12
6
|
27
44
23
12
6
|
28
44
24
12
6
|
28
45
24
13
6
|
29
46
25
13
6
|
29
46
25
13
6
|
28
45
24
13
6
|
28
45
24
13
6
|
28
45
24
13
6
|
27
44
23
12
6
|
26
42
23
12
6
|
26
42
23
12
6
|
26
42
23
12
6
|
24
39
21
11
5
|
21
33
18
9
5
|
20
32
17
9
5
|
21
33
18
9
5
|
23
37
20
10
5
|
24
39
21
11
5
|
24
38
21
11
5
|
| Visibility (description) |
G
11
|
G
10
|
G
10
|
G
10
|
G
11
|
G
11
|
G
12
|
G
13
|
G
14
|
G
16
|
G
17
|
G
17
|
G
18
|
G
19
|
VG
20
|
VG
21
|
VG
21
|
VG
23
|
VG
27
|
VG
27
|
VG
24
|
VG
21
|
G
17
|
G
15
|
| Humidity |
86%
|
85%
|
85%
|
85%
|
85%
|
86%
|
85%
|
85%
|
85%
|
85%
|
79%
|
77%
|
75%
|
74%
|
70%
|
67%
|
68%
|
74%
|
75%
|
82%
|
84%
|
85%
|
85%
|
86%
|
| UV |
-
|
-
|
-
|
-
|
-
|
-
|
1
|
1
|
1
|
1
|
2
|
2
|
3
|
3
|
3
|
3
|
2
|
1
|
1
|
1
|
-
|
-
|
-
|
-
|
| Wind direction and speed |
17
27
15
8
4
|
17
28
15
8
4
|
15
24
13
7
4
|
15
24
13
7
4
|
15
24
13
7
4
|
15
24
13
7
4
|
15
25
13
7
4
|
16
25
14
7
4
|
16
26
14
7
4
|
16
26
14
7
4
|
16
26
14
7
4
|
15
24
13
7
4
|
16
25
14
7
4
|
14
22
12
6
4
|
12
20
10
6
3
|
11
18
10
5
3
|
12
19
10
5
3
|
12
19
10
5
3
|
11
17
10
5
3
|
11
18
10
5
3
|
11
18
10
5
3
|
11
18
10
5
3
|
12
19
10
5
3
|
12
19
10
5
3
|
| Height of waves offshore (m) |
0.5
|
0.5
|
0.5
|
0.5
|
0.5
|
0.5
|
0.5
|
0.5
|
0.5
|
0.5
|
0.5
|
0.5
|
0.5
|
0.4
|
0.4
|
0.3
|
0.3
|
0.3
|
0.3
|
0.2
|
0.2
|
0.3
|
0.3
|
0.3
|
| Period of waves offshore (s) |
7
|
5
|
5
|
5
|
5
|
5
|
7
|
7
|
7
|
5
|
5
|
5
|
5
|
7
|
6
|
10
|
10
|
10
|
10
|
9
|
9
|
9
|
9
|
9
|
| Direction of waves offshore |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Saturday
(21 September 2024)
| Time |
00:00
|
01:00
|
04:00
|
07:00
|
10:00
|
13:00
|
16:00
|
19:00
|
22:00
|
|---|---|---|---|---|---|---|---|---|---|
| Weather symbols |
|
|
|
|
|
|
|
|
|
| Chance of precipitation |
<5%
|
20%
|
40%
|
50%
|
60%
|
80%
|
80%
|
60%
|
60%
|
| Temperature (°C) |
15°
60°
|
15°
59°
|
15°
59°
|
15°
59°
|
16°
61°
|
18°
65°
|
19°
67°
|
18°
64°
|
17°
62°
|
| Feels like temperature (°C) |
14°
57°
|
13°
56°
|
13°
55°
|
13°
56°
|
14°
58°
|
17°
62°
|
18°
65°
|
17°
63°
|
16°
61°
|
| Wind direction and speed (mph) |
NE
11
17
10
5
3
|
NE
11
18
10
5
3
|
NE
13
21
11
6
4
|
NE
12
20
10
6
3
|
ENE
13
21
11
6
4
|
ENE
12
19
10
5
3
|
ENE
9
15
8
4
3
|
ENE
7
11
6
3
2
|
ENE
8
12
7
3
3
|
| Wind gust (mph) |
24
39
21
11
5
|
27
44
23
12
6
|
28
44
24
12
6
|
28
46
24
13
6
|
28
44
24
12
6
|
24
39
21
11
5
|
19
31
17
9
5
|
18
29
16
8
4
|
20
32
17
9
5
|
| Visibility (description) |
G
14
|
G
13
|
G
12
|
G
11
|
G
14
|
G
17
|
G
19
|
G
18
|
G
16
|
| Humidity |
87%
|
90%
|
92%
|
92%
|
87%
|
81%
|
80%
|
88%
|
88%
|
| UV |
-
|
-
|
-
|
1
|
2
|
4
|
2
|
1
|
-
|
| Wind direction and speed |
12
19
10
5
3
|
12
19
10
5
3
|
14
22
12
6
4
|
13
21
11
6
4
|
13
21
11
6
4
|
11
17
10
5
3
|
8
13
7
3
3
|
7
12
6
3
2
|
9
14
8
4
3
|
| Height of waves offshore (m) |
0.3
|
0.3
|
0.4
|
0.4
|
0.4
|
0.3
|
0.3
|
0.2
|
0.3
|
| Period of waves offshore (s) |
6
|
4
|
3
|
3
|
3
|
3
|
3
|
5
|
2
|
| Direction of waves offshore |
|
|
|
|
|
|
|
|
|
Sunday
(22 September 2024)
| Time |
01:00
|
04:00
|
07:00
|
10:00
|
13:00
|
16:00
|
19:00
|
22:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols |
|
|
|
|
|
|
|
|
| Chance of precipitation |
60%
|
70%
|
70%
|
60%
|
80%
|
80%
|
80%
|
70%
|
| Temperature (°C) |
16°
61°
|
16°
60°
|
15°
60°
|
16°
61°
|
18°
64°
|
18°
65°
|
17°
63°
|
16°
61°
|
| Feels like temperature (°C) |
15°
59°
|
14°
58°
|
14°
57°
|
14°
58°
|
16°
61°
|
17°
63°
|
16°
61°
|
15°
59°
|
| Wind direction and speed (mph) |
NE
9
14
8
4
3
|
NE
10
16
9
5
3
|
NE
11
18
10
5
3
|
NE
12
19
10
5
3
|
NE
12
19
10
5
3
|
NE
10
17
9
5
3
|
NE
10
15
9
4
3
|
NE
8
13
7
4
3
|
| Wind gust (mph) |
22
36
19
10
5
|
25
40
22
11
6
|
26
42
23
12
6
|
28
44
24
12
6
|
25
40
22
11
6
|
25
40
22
11
6
|
22
35
19
10
5
|
17
28
15
8
4
|
| Visibility (description) |
G
13
|
G
10
|
G
10
|
G
12
|
G
15
|
G
16
|
G
15
|
G
14
|
| Humidity |
92%
|
93%
|
93%
|
92%
|
86%
|
85%
|
91%
|
93%
|
| UV |
-
|
-
|
1
|
1
|
3
|
1
|
1
|
-
|
| Wind direction and speed |
10
16
9
4
3
|
11
17
10
5
3
|
11
18
10
5
3
|
13
21
11
6
4
|
11
18
10
5
3
|
8
14
7
4
3
|
7
11
6
3
2
|
6
10
5
3
2
|
| Height of waves offshore (m) |
0.3
|
0.3
|
0.4
|
0.3
|
0.3
|
0.4
|
0.4
|
0.3
|
| Period of waves offshore (s) |
2
|
3
|
3
|
4
|
9
|
3
|
3
|
4
|
| Direction of waves offshore |
|
|
|
|
|
|
|
|
Monday
(23 September 2024)
| Time |
01:00
|
04:00
|
07:00
|
10:00
|
13:00
|
16:00
|
19:00
|
22:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols |
|
|
|
|
|
|
|
|
| Chance of precipitation |
70%
|
60%
|
60%
|
50%
|
50%
|
30%
|
10%
|
10%
|
| Temperature (°C) |
15°
60°
|
15°
59°
|
14°
58°
|
15°
59°
|
17°
63°
|
18°
64°
|
16°
60°
|
14°
57°
|
| Feels like temperature (°C) |
14°
58°
|
14°
56°
|
13°
56°
|
14°
57°
|
16°
61°
|
17°
63°
|
15°
59°
|
13°
56°
|
| Wind direction and speed (mph) |
NNE
9
14
8
4
3
|
NNE
10
15
9
4
3
|
NNE
8
13
7
4
3
|
NNE
8
14
7
4
3
|
NE
8
13
7
3
3
|
N
7
11
6
3
2
|
NNW
6
10
5
3
2
|
NNW
5
8
4
2
2
|
| Wind gust (mph) |
22
36
19
10
5
|
24
39
21
11
5
|
20
32
17
9
5
|
19
31
17
9
5
|
19
31
17
9
5
|
18
28
16
8
4
|
16
25
14
7
4
|
13
22
11
6
4
|
| Visibility (description) |
G
13
|
G
12
|
G
11
|
G
15
|
G
18
|
G
19
|
G
17
|
G
15
|
| Humidity |
94%
|
93%
|
93%
|
88%
|
79%
|
75%
|
85%
|
88%
|
| UV |
-
|
-
|
1
|
2
|
4
|
2
|
1
|
-
|
| Wind direction and speed |
7
10
6
3
2
|
6
10
5
3
2
|
6
9
5
3
2
|
6
10
5
3
2
|
9
14
8
4
3
|
8
13
7
4
3
|
6
10
5
3
2
|
6
9
5
3
2
|
| Height of waves offshore (m) |
0.3
|
0.3
|
0.3
|
0.3
|
0.2
|
0.1
|
0.1
|
0.1
|
| Period of waves offshore (s) |
7
|
6
|
3
|
4
|
8
|
8
|
8
|
8
|
| Direction of waves offshore |
|
|
|
|
|
|
|
|
Tuesday
(24 September 2024)
| Time |
01:00
|
04:00
|
07:00
|
10:00
|
13:00
|
16:00
|
19:00
|
22:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols |
|
|
|
|
|
|
|
|
| Chance of precipitation |
10%
|
10%
|
10%
|
20%
|
30%
|
40%
|
50%
|
60%
|
| Temperature (°C) |
13°
55°
|
12°
54°
|
12°
53°
|
14°
58°
|
16°
61°
|
16°
62°
|
15°
59°
|
14°
58°
|
| Feels like temperature (°C) |
12°
54°
|
12°
53°
|
11°
52°
|
14°
57°
|
15°
59°
|
15°
59°
|
13°
56°
|
13°
55°
|
| Wind direction and speed (mph) |
NNW
4
7
3
2
2
|
NNW
5
8
4
2
2
|
N
4
7
3
2
2
|
SSW
6
10
5
3
2
|
S
9
15
8
4
3
|
SSW
10
16
9
5
3
|
SSW
11
17
10
5
3
|
SSE
10
17
9
5
3
|
| Wind gust (mph) |
11
18
10
5
3
|
11
18
10
5
3
|
12
20
10
5
3
|
18
29
16
8
4
|
22
35
19
10
5
|
23
37
20
10
5
|
25
40
22
11
6
|
27
44
23
12
6
|
| Visibility (description) |
G
14
|
G
12
|
G
10
|
G
17
|
G
19
|
G
19
|
G
18
|
G
14
|
| Humidity |
91%
|
94%
|
94%
|
86%
|
77%
|
74%
|
83%
|
90%
|
| UV |
-
|
-
|
1
|
2
|
3
|
1
|
1
|
-
|
| Wind direction and speed |
6
9
5
3
2
|
5
9
4
2
2
|
7
12
6
3
2
|
8
13
7
4
3
|
9
15
8
4
3
|
8
13
7
3
3
|
8
13
7
4
3
|
10
16
9
4
3
|
| Height of waves offshore (m) |
0.2
|
0.2
|
0.2
|
0.1
|
0.1
|
0.1
|
0.1
|
0.4
|
| Period of waves offshore (s) |
6
|
8
|
8
|
8
|
8
|
8
|
8
|
3
|
| Direction of waves offshore |
|
|
|
|
|
|
|
|
Wednesday
(25 September 2024)
| Time |
01:00
|
04:00
|
07:00
|
10:00
|
13:00
|
16:00
|
19:00
|
22:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols |
|
|
|
|
|
|
|
|
| Chance of precipitation |
60%
|
60%
|
70%
|
80%
|
70%
|
50%
|
50%
|
50%
|
| Temperature (°C) |
14°
57°
|
14°
57°
|
14°
57°
|
15°
59°
|
16°
61°
|
16°
61°
|
15°
58°
|
14°
57°
|
| Feels like temperature (°C) |
12°
54°
|
12°
54°
|
12°
53°
|
13°
55°
|
14°
56°
|
13°
56°
|
12°
54°
|
12°
53°
|
| Wind direction and speed (mph) |
SSE
11
18
10
5
3
|
S
11
18
10
5
3
|
SSW
11
18
10
5
3
|
SSW
13
21
11
6
4
|
SSW
15
23
13
6
4
|
SW
15
24
13
7
4
|
SW
13
21
11
6
4
|
SW
12
20
10
6
3
|
| Wind gust (mph) |
27
43
23
12
6
|
26
43
23
12
6
|
27
43
23
12
6
|
31
49
27
14
6
|
31
50
27
14
6
|
28
45
24
12
6
|
30
48
26
13
6
|
30
47
26
13
6
|
| Visibility (description) |
G
16
|
G
13
|
G
12
|
G
16
|
G
17
|
VG
20
|
VG
20
|
G
18
|
| Humidity |
91%
|
92%
|
92%
|
87%
|
84%
|
78%
|
82%
|
88%
|
| UV |
-
|
-
|
1
|
2
|
3
|
1
|
1
|
-
|
| Wind direction and speed |
11
17
10
5
3
|
– | – | – | – | – | – | – |
| Height of waves offshore (m) |
0.5
|
– | – | – | – | – | – | – |
| Period of waves offshore (s) |
3
|
– | – | – | – | – | – | – |
| Direction of waves offshore |
|
–
|
–
|
–
|
–
|
–
|
–
|
–
|
Thursday
(26 September 2024)
| Time |
01:00
|
04:00
|
07:00
|
10:00
|
13:00
|
16:00
|
19:00
|
22:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols |
|
|
|
|
|
|
|
|
| Chance of precipitation |
50%
|
50%
|
50%
|
60%
|