Llantwit Major Sea Conditions and Tide Table

Llantwit Major Sea Conditions table showing wave height, swell direction and period.

High and low tide times are also provided on the table along with the moon phase and forecast weather. Sunrise today is at 05:15 AM and sunset is at 09:06 PM.

Days 1–3 Weather Summary

Light rain (total 2mm), mostly falling on Fri night. Warm air temperatures (max 21°C on Fri afternoon, min 12°C on Wed night). Wind will be generally light.

Days 4–6 Weather Summary

Mostly dry. Warm air temperatures (max 23°C on Mon afternoon, min 16°C on Sat night). Wind will be generally light.

Days 7–9 Weather Summary

Mostly dry. Very mild (max 19°C on Thu afternoon, min 9°C on Tue night). Wind will be generally light.

Days 10–12 Weather Summary

Mostly dry. Very mild (max 17°C on Fri night, min 7°C on Sat night). Winds decreasing (fresh winds from the ENE on Sat morning, calm by Sun night).

Days 13–16 Weather Summary

Mostly dry. Very mild (max 18°C on Tue afternoon, min 9°C on Thu night). Wind will be generally light.

Thursday
21
Friday
22
Saturday
23
Sunday
24
Monday
25
Tuesday
26
Wednesday
27
Thursday
28
Friday
29
Saturday
30
Sunday
31
Monday
1
Tuesday
2
Wednesday
3
Thursday
4
Fri
5
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
Wave Height Map
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High Tide
10:49AM8.76m
11:14PM8.78m
11:45AM8.10m
00:13AM8.18m
12:49PM7.54m
1:20AM7.71m
2:00PM7.21m
2:33AM7.48m
3:12PM7.19m
3:41AM7.50m
4:15PM7.40m
4:39AM7.69m
5:07PM7.72m
5:28AM7.93m
5:51PM8.04m
6:11AM8.17m
6:31PM8.32m
6:50AM8.37m
7:08PM8.54m
7:27AM8.51m
7:44PM8.67m
8:02AM8.55m
8:19PM8.70m
8:38AM8.50m
8:55PM8.64m
9:14AM8.36m
9:31PM8.50m
Low Tide
4:53PM1.53m
5:32AM1.61m
5:55PM2.04m
6:39AM2.08m
7:04PM2.44m
7:52AM2.37m
8:17PM2.63m
9:02AM2.46m
9:27PM2.62m
10:04AM2.38m
10:27PM2.46m
10:56AM2.22m
11:17PM2.23m
11:39AM2.03m
11:59PM1.99m
12:17PM1.84m
00:37AM1.76m
12:53PM1.68m
1:13AM1.58m
1:28PM1.57m
1:48AM1.49m
2:03PM1.54m
2:25AM1.48m
2:39PM1.58m
3:01AM1.58m
3:15PM1.70m
Wave
Height (m)
Direction
Period (s)
0.5
W
11
0.5
W
11
0.4
WSW
10
0.5
W
11
0.4
WSW
11
0.4
WSW
10
0.4
WSW
10
0.4
WSW
10
0.3
W
10
0.3
W
10
0.2
W
9
0.3
W
10
0.3
W
9
0.3
W
9
0.3
W
9
0.4
W
7
0.4
W
8
0.5
W
7
0.4
W
7
0.2
W
11
0.1
W
10
0.1
W
10
0.1
W
10
0.1
W
6
0.1
W
5
0.2
W
4
0.2
W
6
0.8
ENE
4
0.3
NE
4
0.4
NE
3
0.4
W
8
0.2
W
10
0.3
W
12
0.2
W
12
0.6
W
6
0.3
W
8
0.3
W
10
0.5
W
3
0.4
W
6
0.3
W
8
0.6
W
4
0.5
W
7
0.3
W
8
0.3
W
10
0.3
W
10
0.3
W
7
cloud
part cloud
clear
part cloud
part cloud
rain showers
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
part cloud
part cloud
clear
clear
part cloud
clear
cloud
clear
clear
part cloud
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
cloud
part cloud
clear
clear
cloudy
some clouds
clear
some clouds
some clouds
rain shwrs
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
some clouds
clear
clear
clear
clear
some clouds
some clouds
clear
clear
some clouds
clear
cloudy
clear
clear
some clouds
clear
clear
clear
some clouds
some clouds
some clouds
some clouds
clear
clear
clear
cloudy
some clouds
clear
clear
km/h
10
SW
20
SSE
15
E
10
SSE
10
WSW
10
W
10
WNW
15
W
5
W
5
SE
5
SSW
5
WNW
5
WSW
15
W
0
NW
15
E
20
ENE
20
ENE
20
E
10
E
5
E
0
WSW
15
W
5
E
5
S
20
W
5
E
30
ENE
15
ENE
20
NE
20
ENE
5
NE
5
NE
10
WNW
20
W
5
NW
10
W
20
WNW
10
NW
15
WNW
25
WNW
15
NW
10
ENE
5
N
15
ENE
10
ENE
2
max °C
17
19
15
20
21
18
19
19
18
21
22
22
22
23
22
19
19
17
15
18
17
18
19
18
18
19
17
13
15
12
13
15
14
15
16
14
17
18
15
17
17
14
14
17
16
16
Moonrise
9:43
11:10
12:33
1:51
3:06
4:20
5:33
6:47
8:01
9:12
10:17
11:12
11:54
12:26
12:49
Moonset
1:35
1:59
2:16
2:29
2:41
2:52
3:04
3:17
3:33
3:54
4:23
5:02
5:53
6:55
8:06
9:20
Sunrise
5:15
5:13
5:11
5:11
5:09
5:09
5:07
5:07
5:05
5:05
5:03
5:03
5:01
5:01
5:01
5:00
Sunset
9:06
9:07
9:08
9:09
9:12
9:13
9:14
9:15
9:16
9:17
9:19
9:20
9:21
9:22
9:22
Today's sea temperature in Llantwit Major is
12.6° C
(Statistics for 21 May 1981-2005 – mean: 11.6 max: 12.9 min: 10.1°C)
Issued (local time): 12 am Thursday 21 May 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest