Swansea Sea Conditions and Tide Table

Swansea 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 07:09 AM and sunset is at 04:19 PM.

Days 1–3 Weather Summary

A dusting of new snow. Icy conditions (max 5°C on Thu morning, min -9°C on Thu night). Wind will be generally light.

Days 4–6 Weather Summary

Moderate rain (total 19mm), heaviest on Sun night. Icy conditions (max 8°C on Mon morning, min -5°C on Sat night). Wind will be generally light.

Days 7–9 Weather Summary

Mostly dry. Freeze-thaw conditions (max 4°C on Thu morning, min -8°C on Fri afternoon). Wind will be generally light.

Days 10–12 Weather Summary

Light rain (total 3mm), mostly falling on Sun night. Freeze-thaw conditions (max 6°C on Sun night, min -10°C on Fri night). Wind will be generally light.

Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
Thursday
1
Friday
2
Saturday
3
Sunday
4
Mon
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
Wave Height Map
High Tide
10:55AM1.11m
11:29PM1.05m
11:43AM1.08m
00:21AM1.09m
12:36PM1.04m
1:16AM1.14m
1:33PM1.02m
2:14AM1.20m
2:33PM1.00m
3:13AM1.27m
3:34PM1.01m
4:12AM1.34m
4:35PM1.03m
5:10AM1.40m
5:34PM1.06m
6:07AM1.44m
6:30PM1.09m
7:01AM1.45m
7:25PM1.12m
7:54AM1.44m
8:18PM1.14m
8:45AM1.39m
Low Tide
4:48PM0.22m
5:01AM0.30m
5:34PM0.21m
6:05AM0.31m
6:24PM0.19m
7:17AM0.29m
7:20PM0.16m
8:30AM0.26m
8:19PM0.14m
9:39AM0.22m
9:19PM0.11m
10:43AM0.17m
10:19PM0.08m
11:43AM0.14m
11:18PM0.05m
12:40PM0.11m
00:16AM0.04m
1:33PM0.10m
1:13AM0.04m
2:25PM0.10m
2:09AM0.07m
3:13PM0.12m
Wave
height (m) 
direction
period (s) 
1
SW
4
0.7
SW
5
0.6
NNW
3
0.3
N
3
0.1
SE
12
0.1
S
7
0.3
NE
2
0.3
NNE
2
0.1
SE
13
0.2
S
8
0.2
S
7
0.7
SW
4
1.2
SSW
6
1.2
SSW
8
1.4
SSW
8
1.3
SW
6
1.3
SW
6
0.9
WSW
4
0.6
W
3
0.4
SW
4
1.1
SW
4
1.3
SSW
6
1.1
SSW
6
1
SSW
7
0.9
SSW
8
0.6
SSW
8
0.3
SSW
7
0.4
NW
2
0.5
NW
3
0.2
WNW
2
0.1
S
10
0.3
SW
2
0.9
SSW
5
0.9
SSW
6
0.9
S
7
part cloud
clear
clear
part cloud
part cloud
light snow
cloud
part cloud
clear
clear
cloud
heavy rain
light rain
rain showers
clear
clear
clear
clear
part cloud
clear
part cloud
cloud
part cloud
cloud
part cloud
clear
clear
part cloud
clear
clear
part cloud
part cloud
light rain
part cloud
cloud
some clouds
clear
clear
some clouds
some clouds
light snow
cloudy
some clouds
clear
clear
cloudy
heavy rain
light rain
rain shwrs
clear
clear
clear
clear
some clouds
clear
some clouds
cloudy
some clouds
cloudy
some clouds
clear
clear
some clouds
clear
clear
some clouds
some clouds
light rain
some clouds
cloudy
 km/h
20
WSW
20
NW
25
NNW
10
N
5
ENE
5
NE
15
NNE
10
N
10
NW
10
NNW
5
WSW
15
SW
20
SW
20
WSW
25
W
25
W
25
W
20
W
20
W
10
WSW
20
SW
20
SW
20
SW
15
SW
20
NW
20
NW
15
NW
20
NW
20
WNW
10
WNW
10
SW
10
SSW
20
SSW
15
WSW
10
W
 mm 
13
5
1
3
max°C
5
4
-6
-5
-5
-5
-1
-3
-4
4
4
7
8
8
1
0
-1
-2
0
0
2
4
4
4
-3
-6
-9
-4
-4
-7
-2
-1
6
6
6
Moonrise
10:38
10:59
11:20
11:43
12:09
12:41
1:22
2:16
3:22
4:39
5:58
7:16
Moonset
10:03
11:12
12:23
1:36
2:54
4:15
5:34
6:46
7:44
8:29
9:04
Sunrise
7:09
7:09
7:09
7:11
7:11
7:11
7:11
7:11
7:11
7:11
7:11
7:11
Sunset
4:19
4:20
4:20
4:21
4:22
4:22
4:22
4:23
4:24
4:25
4:27
4:28
Today's sea temperature in Swansea is
3.4° C
(Statistics for 25 Dec 1981-2005 – mean: 7.4 max: 9.3 min: 5.4°C)
Issued (local time): 12 am Thursday 25 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
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