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 — and sunset is at —.

Days 1–4 Weather Summary

Mostly dry. Cool air temperatures (max 15°C on Wed afternoon, min 7°C on Wed night). Wind will be generally light.

Days 5–7 Weather Summary

Mostly dry. Cool air temperatures (max 12°C on Sat afternoon, min 8°C on Fri night). Wind will be generally light.

Days 8–10 Weather Summary

Mostly dry. Very mild (max 11°C on Tue morning, min 8°C on Wed night). Winds increasing (calm on Mon night, fresh winds from the WSW by Tue afternoon).

Days 11–13 Weather Summary

Light rain (total 5mm), mostly falling on Sun night. Very mild (max 10°C on Sat afternoon, min 5°C on Fri night). Winds decreasing (fresh winds from the WNW on Thu night, light winds from the N by Fri night).

Wednesday
18
Thursday
19
Friday
20
Saturday
21
Sunday
22
Monday
23
Tuesday
24
Wednesday
25
Thursday
26
Friday
27
Saturday
28
Sunday
29
Monday
30
Tuesday
31
Wednesday
1
Thu
2
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
night
AM
Wave Height Map
High Tide
6:11AM9.30m
6:30PM9.40m
6:47AM9.92m
7:07PM9.92m
7:24AM10.31m
7:43PM10.19m
8:02AM10.41m
8:21PM10.18m
8:41AM10.19m
9:01PM9.87m
9:22AM9.68m
9:43PM9.30m
10:07AM8.92m
10:31PM8.53m
11:00AM8.02m
11:30PM7.70m
12:09PM7.19m
00:50AM7.08m
1:43PM6.78m
2:27AM7.04m
3:14PM7.03m
3:47AM7.55m
4:21PM7.66m
4:45AM8.25m
5:11PM8.33m
5:30AM8.88m
5:52PM8.90m
Low Tide
00:08AM1.12m
12:29PM0.69m
00:41AM0.55m
1:00PM0.21m
1:13AM0.16m
1:32PM-0.04m
1:45AM-0.02m
2:05PM-0.05m
2:20AM0.05m
2:39PM0.21m
2:56AM0.38m
3:17PM0.72m
3:37AM0.95m
3:59PM1.42m
4:25AM1.69m
4:52PM2.21m
5:30AM2.47m
6:07PM2.93m
7:10AM3.00m
8:04PM3.19m
9:11AM2.86m
9:48PM2.80m
10:29AM2.27m
10:51PM2.16m
11:20AM1.65m
11:35PM1.56m
11:58AM1.13m
Wave
height (m) 
direction
period (s) 
0.7
W
12
0.7
W
12
0.8
W
11
0.5
W
14
0.6
W
8
0.4
W
9
0.3
W
9
0.3
W
6
0.2
W
8
0.2
W
11
0.2
W
12
0.1
W
12
0.1
W
11
0.1
W
14
0.3
W
6
0.3
W
8
0.6
W
4
0.8
W
4
0.4
W
6
0.3
W
6
0.7
W
3
0.7
W
6
0.5
W
7
0.5
W
8
0.5
W
10
0.7
W
7
0.7
W
4
1.2
W
5
1.5
W
6
1
W
7
0.5
W
6
0.4
W
7
0.4
WSW
5
0.3
WSW
5
0.8
W
4
1.2
W
5
1.2
W
11
1.2
W
6
1.2
W
6
0.9
W
7
1.1
W
6
1.3
WNW
5
1.2
WNW
5
1.3
WNW
6
1.3
WNW
6
0.8
WNW
5
0.7
N
4
clear
clear
clear
clear
clear
part cloud
part cloud
clear
clear
part cloud
part cloud
cloud
part cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
part cloud
part cloud
part cloud
cloud
cloud
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
rain showers
rain showers
rain showers
light rain
part cloud
part cloud
part cloud
rain showers
part cloud
part cloud
rain showers
clear
part cloud
clear
clear
clear
clear
clear
some clouds
some clouds
clear
clear
some clouds
some clouds
cloudy
some clouds
cloudy
cloudy
cloudy
cloudy
cloudy
cloudy
cloudy
cloudy
cloudy
some clouds
some clouds
some clouds
cloudy
cloudy
clear
some clouds
some clouds
some clouds
some clouds
some clouds
some clouds
rain shwrs
rain shwrs
rain shwrs
light rain
some clouds
some clouds
some clouds
rain shwrs
some clouds
some clouds
rain shwrs
clear
some clouds
 km/h
10
E
20
E
25
ESE
15
ENE
20
E
20
E
10
ENE
15
ENE
10
E
10
ENE
10
E
5
SSW
5
NW
5
W
15
W
15
WSW
20
WSW
25
WSW
5
WSW
5
S
30
WSW
15
W
10
W
15
W
15
WSW
15
W
30
WNW
30
WNW
35
NW
25
NW
5
N
20
ESE
25
SSE
10
SSW
30
W
30
W
20
WNW
30
NW
30
NW
25
NW
30
NW
35
NW
30
NW
40
NNW
35
NNW
20
NNW
35
N
 mm 
2
1
2
1
1
1
max°C
9
14
15
11
10
13
11
10
12
11
11
12
11
11
10
9
10
9
9
11
11
10
11
11
9
11
10
8
8
9
8
8
10
7
8
8
6
8
8
6
8
8
5
8
8
6
7
Moonrise
6:05
6:17
6:30
6:45
7:04
7:32
8:12
9:09
10:23
11:47
1:13
3:36
4:56
6:13
7:28
Moonset
5:59
7:23
8:49
10:19
11:50
1:17
2:31
3:26
4:04
4:29
5:48
6:02
6:14
6:25
6:36
Sunrise
6:20
6:18
6:16
6:13
6:11
6:09
6:07
6:05
6:03
6:00
5:58
6:56
5:54
5:50
5:48
5:47
Sunset
6:22
6:24
6:25
6:28
6:30
6:30
6:32
6:35
6:37
6:37
6:39
7:42
6:43
6:45
6:46
Today's sea temperature in Llantwit Major is
8.9° C
(Statistics for 17 Mar 1981-2005 – mean: 9.0 max: 10.2 min: 7.3°C)
Issued (local time): 11 pm Tuesday 17 Mar 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest