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

Heavy rain (total 37mm), heaviest during Fri afternoon. Cool air temperatures (max 14°C on Sun morning, min 7°C on Thu night). Winds increasing (light winds from the WNW on Thu night, near gales from the WSW by Sat morning).

Days 5–7 Weather Summary

Heavy rain (total 35mm), heaviest during Tue morning. Cool air temperatures (max 15°C on Tue morning, min 9°C on Wed morning). Winds increasing (light winds from the SSE on Mon night, strong winds from the WNW by Wed morning).

Days 8–10 Weather Summary

Moderate rain (total 10mm), heaviest on Sat morning. Very mild (max 13°C on Fri morning, min 9°C on Wed night). Mainly fresh winds.

Days 11–13 Weather Summary

Light rain (total 7mm), mostly falling on Tue morning. Very mild (max 11°C on Sat night, min 8°C on Mon night). Winds increasing (light winds from the SW on Sun night, near gales from the W by Tue night).

Friday
5
Saturday
6
Sunday
7
Monday
8
Tuesday
9
Wednesday
10
Thursday
11
Friday
12
Saturday
13
Sunday
14
Monday
15
Tue
16
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
High Tide
6:19AM9.91m
6:44PM9.93m
7:06AM10.07m
7:31PM9.88m
7:53AM9.99m
8:19PM9.59m
8:41AM9.69m
9:06PM9.10m
9:29AM9.20m
9:56PM8.51m
10:19AM8.61m
10:48PM7.88m
11:13AM8.00m
11:46PM7.34m
12:14PM7.47m
00:50AM6.98m
1:21PM7.14m
1:59AM6.88m
2:28PM7.06m
3:03AM7.01m
3:28PM7.19m
3:57AM7.29m
4:19PM7.44m
Low Tide
00:01AM0.52m
12:26PM0.37m
00:48AM0.43m
1:15PM0.30m
1:35AM0.52m
2:04PM0.45m
2:23AM0.78m
2:53PM0.79m
3:11AM1.18m
3:45PM1.24m
4:02AM1.64m
4:39PM1.74m
4:56AM2.12m
5:36PM2.20m
5:55AM2.54m
6:37PM2.55m
6:59AM2.81m
7:40PM2.74m
8:05AM2.90m
8:40PM2.76m
9:06AM2.82m
9:35PM2.63m
10:01AM2.61m
Wave
height (m) 
direction
period (s) 
0.9
W
14
0.9
W
14
1.5
SSE
4
1.9
W
9
2.5
W
11
3
W
12
1.6
W
15
1
W
14
1.1
W
10
1.1
W
10
0.9
WSW
9
0.9
W
19
1
W
17
1.2
W
11
1.3
W
11
1.4
WSW
9
1.2
W
9
1.4
W
6
0.7
W
12
0.7
W
8
0.8
WSW
8
0.8
WSW
10
1.2
W
22
1.2
W
19
1.2
W
18
1
W
16
0.9
W
15
0.8
WSW
9
0.8
W
11
0.6
W
11
0.6
W
10
0.5
W
10
0.5
W
10
0.5
W
12
0.7
W
8
1.9
W
6
rain showers
cloud
mod rain
mod rain
light rain
rain showers
part cloud
mod rain
rain showers
part cloud
part cloud
light rain
mod rain
mod rain
mod rain
mod rain
rain showers
clear
part cloud
part cloud
part cloud
light rain
light rain
rain showers
rain showers
light rain
light rain
light rain
rain showers
part cloud
part cloud
part cloud
clear
part cloud
light rain
light rain
rain shwrs
cloudy
mod rain
mod rain
light rain
rain shwrs
some clouds
mod rain
rain shwrs
some clouds
some clouds
light rain
mod rain
mod rain
mod rain
mod rain
rain shwrs
clear
some clouds
some clouds
some clouds
light rain
light rain
rain shwrs
rain shwrs
light rain
light rain
light rain
rain shwrs
some clouds
some clouds
some clouds
clear
some clouds
light rain
light rain
 km/h
15
SW
20
SSE
55
SSE
45
SW
50
WSW
55
WSW
25
WSW
20
SE
30
SW
25
WSW
25
SW
15
SSW
25
SSE
40
SSW
40
SSW
45
SSW
45
WNW
35
W
15
S
25
S
30
SSE
25
SSE
30
S
25
S
20
S
20
S
20
SSE
20
SSW
15
SW
15
WSW
10
WSW
10
WSW
15
WNW
10
WSW
25
S
45
W
 mm 
2
9
8
4
1
10
3
1
9
9
6
7
3
1
2
2
1
3
1
2
1
2
1
max°C
8
9
12
10
11
11
11
14
14
11
12
13
14
15
14
14
11
11
9
12
11
12
13
13
12
12
11
11
11
11
9
10
9
9
11
9
Moonrise
3:59
5:11
6:37
8:06
9:31
10:50
12:06
1:18
2:30
3:41
4:54
Moonset
9:14
10:21
11:07
11:38
11:58
12:13
12:25
12:36
12:47
12:58
1:11
1:27
Sunrise
8:00
8:03
8:03
8:04
8:06
8:07
8:07
8:08
8:10
8:11
8:11
8:12
Sunset
4:06
4:06
4:06
4:05
4:05
4:05
4:05
4:05
4:05
4:05
4:05
4:05
Today's sea temperature in Llantwit Major is
10.6° C
(Statistics for 04 Dec 1981-2005 – mean: 11.8 max: 12.9 min: 10.7°C)
Issued (local time): 11 pm Thursday 04 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest