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 05:52 AM and sunset is at 08:45 PM.

Days 1–3 Weather Summary

Mostly dry. Very warm air temperatures (max 34°C on Wed afternoon, min 17°C on Tue night). Winds increasing (calm on Wed night, fresh winds from the W by Thu afternoon).

Days 4–6 Weather Summary

Some drizzle, heaviest during Sun night. Warm air temperatures (max 23°C on Fri morning, min 12°C on Sat night). Winds decreasing (fresh winds from the NW on Sat afternoon, calm by Sun morning).

Days 7–9 Weather Summary

Moderate rain (total 14mm), heaviest on Mon afternoon. Very mild (max 19°C on Mon afternoon, min 15°C on Mon morning). Winds decreasing (fresh winds from the WSW on Mon afternoon, calm by Wed night).

Days 10–12 Weather Summary

Mostly dry. Warm (max 20°C on Thu afternoon, min 13°C on Fri night). Wind will be generally light.

Days 13–16 Weather Summary

Heavy rain (total 21mm), heaviest during Wed afternoon. Warm (max 22°C on Mon afternoon, min 14°C on Tue night). Winds increasing (calm on Sun night, strong winds from the W by Wed night).

Tuesday
11
Wednesday
12
Thursday
13
Friday
14
Saturday
15
Sunday
16
Monday
17
Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wed
26
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
PM
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
High Tide
6:33PM9.03m
7:00AM9.11m
7:22PM9.68m
7:46AM9.59m
8:07PM10.11m
8:29AM9.85m
8:49PM10.26m
9:10AM9.85m
9:28PM10.12m
9:48AM9.61m
10:07PM9.71m
10:26AM9.17m
10:44PM9.09m
11:03AM8.57m
11:22PM8.36m
11:41AM7.90m
00:02AM7.58m
12:23PM7.20m
00:50AM6.85m
1:20PM6.59m
2:00AM6.30m
2:46PM6.24m
3:38AM6.17m
4:21PM6.41m
4:58AM6.53m
5:25PM6.95m
5:50AM7.11m
6:11PM7.61m
Low Tide
12:27PM1.56m
00:59AM1.09m
1:18PM0.96m
1:46AM0.55m
2:02PM0.52m
2:28AM0.21m
2:41PM0.28m
3:06AM0.13m
3:18PM0.29m
3:41AM0.30m
3:53PM0.51m
4:15AM0.67m
4:28PM0.92m
4:49AM1.20m
5:03PM1.47m
5:24AM1.81m
5:41PM2.10m
6:03AM2.46m
6:27PM2.74m
6:54AM3.07m
7:29PM3.29m
8:06AM3.51m
8:57PM3.57m
9:44AM3.57m
10:37PM3.38m
11:10AM3.19m
11:46PM2.85m
12:06PM2.60m
00:32AM2.23m
Wave
Height (m)
Direction
Period (s)
0.3
ENE
2
0.1
W
7
0.2
W
12
0.3
W
8
0.3
W
10
0.3
W
9
0.3
W
9
0.8
W
4
0.5
W
10
0.6
W
6
0.7
W
4
0.5
W
6
0.4
W
6
0.9
W
4
0.5
W
6
0.2
W
7
0.4
WNW
3
0.4
WNW
3
0.3
W
4
0.8
W
4
1.2
W
6
1
W
6
1.3
W
5
0.9
W
4
1
W
6
0.9
W
5
0.5
W
6
0.4
W
6
0.3
W
6
0.2
W
5
0.2
W
7
0.3
W
7
0.4
W
7
0.2
W
9
0.5
W
3
0.4
W
5
0.4
W
6
0.4
WSW
6
0.4
W
8
0.3
W
8
0.5
W
6
0.9
W
6
1.3
W
6
1.5
W
6
1.4
W
6
1
W
8
1.1
W
6
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
part cloud
part cloud
clear
clear
clear
clear
part cloud
light rain
light rain
mod rain
light rain
part cloud
clear
part cloud
part cloud
cloud
cloud
cloud
part cloud
cloud
part cloud
part cloud
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
rain showers
rain showers
clear
clear
rain showers
mod rain
clear
clear
clear
clear
clear
clear
clear
clear
some clouds
clear
some clouds
some clouds
clear
clear
clear
clear
some clouds
light rain
light rain
mod rain
light rain
some clouds
clear
some clouds
some clouds
cloudy
cloudy
cloudy
some clouds
cloudy
some clouds
some clouds
clear
some clouds
some clouds
some clouds
some clouds
some clouds
some clouds
some clouds
some clouds
rain shwrs
rain shwrs
clear
clear
rain shwrs
mod rain
km/h
15
ESE
10
SSE
10
ESE
15
E
20
SSE
0
NNW
10
W
35
W
15
W
20
W
25
W
15
NNW
15
NW
25
WNW
5
NNE
5
SW
25
W
15
WNW
5
S
25
WSW
25
WNW
25
WNW
35
W
20
WNW
25
WNW
25
W
10
NW
10
E
10
E
5
ENE
10
E
20
NW
15
NNW
10
W
25
W
10
SW
15
SE
20
SSE
5
ESE
10
WSW
25
WSW
30
SSW
35
W
40
W
30
WNW
25
WSW
35
SSW
 mm
1
5
8
1
5
1
2
9
max °C
25
28
23
28
34
26
27
25
19
23
23
18
21
23
16
18
18
16
17
19
18
17
18
17
18
18
17
18
20
19
19
18
16
18
18
16
19
20
17
20
22
19
17
18
16
16
18
Moonrise
3:38
5:10
6:40
8:06
9:27
10:46
12:04
1:21
2:36
3:48
4:54
5:48
6:31
7:02
7:25
7:43
Moonset
8:22
8:43
8:58
9:11
9:23
9:36
9:50
10:06
10:28
10:56
11:35
12:27
1:30
2:42
3:57
Sunrise
5:52
5:52
5:54
5:56
5:58
6:00
6:01
6:03
6:03
6:05
6:07
6:09
6:11
6:11
6:13
6:16
Sunset
8:45
8:43
8:40
8:38
8:37
8:35
8:32
8:30
8:29
8:27
8:24
8:22
8:20
8:17
8:15
8:14
Today's sea temperature in Llantwit Major is
20.5° C
(Statistics for 11 Aug 1981-2005 – mean: 16.3 max: 17.7 min: 14.6°C)
Issued (local time): 12 pm Tuesday 11 Aug 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest