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 05:24 AM and sunset is at 09:00 PM.

Days 1–3 Weather Summary

Mostly dry. Cool air temperatures (max 17°C on Wed night, min 8°C on Thu night). Wind will be generally light.

Days 4–6 Weather Summary

Light rain (total 8mm), mostly falling on Mon night. Cool air temperatures (max 18°C on Tue afternoon, min 11°C on Sun night). Wind will be generally light.

Days 7–9 Weather Summary

Some drizzle, heaviest during Fri afternoon. Very mild (max 18°C on Wed morning, min 10°C on Wed night). Wind will be generally light.

Days 10–12 Weather Summary

Moderate rain (total 14mm), heaviest on Sat night. Very mild (max 15°C on Sun morning, min 10°C on Sun night). Winds increasing (calm on Fri night, fresh winds from the WSW by Mon afternoon).

Thursday
15
Friday
16
Saturday
17
Sunday
18
Monday
19
Tuesday
20
Wednesday
21
Thursday
22
Friday
23
Saturday
24
Sunday
25
Mon
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
Wave Height Map
High Tide
8:39AM8.69m
8:55PM8.73m
9:14AM8.48m
9:31PM8.50m
9:52AM8.20m
10:12PM8.22m
10:36AM7.88m
10:59PM7.92m
11:28AM7.58m
11:56PM7.66m
12:31PM7.38m
1:03AM7.56m
1:43PM7.39m
2:16AM7.70m
2:55PM7.66m
3:26AM8.07m
4:00PM8.14m
4:27AM8.58m
4:57PM8.69m
5:22AM9.09m
5:49PM9.21m
6:13AM9.49m
6:37PM9.59m
Low Tide
2:37PM1.70m
2:57AM1.76m
3:12PM1.93m
3:33AM2.01m
3:50PM2.23m
4:15AM2.31m
4:34PM2.56m
5:05AM2.63m
5:29PM2.87m
6:07AM2.87m
6:38PM3.05m
7:23AM2.92m
7:55PM2.98m
8:39AM2.68m
9:08PM2.63m
9:44AM2.24m
10:10PM2.12m
10:41AM1.72m
11:05PM1.58m
11:32AM1.24m
11:55PM1.11m
12:20PM0.90m
Wave
height (m) 
direction
period (s) 
0.2
ESE
4
0.1
SW
12
0.2
WSW
12
0.2
WSW
11
0.3
WSW
11
0.3
WSW
11
0.4
WSW
11
0.3
WSW
10
0.4
WSW
11
0.4
WSW
10
0.4
WSW
10
0.4
WSW
10
0.5
WSW
9
0.3
WSW
9
0.3
WSW
8
0.3
WSW
12
0.4
WSW
11
0.4
WSW
10
0.4
WSW
10
0.4
WSW
10
0.4
WSW
9
0.5
WSW
8
0.4
WSW
9
0.4
WSW
8
0.4
WSW
9
0.4
WSW
9
0.4
WSW
9
0.4
WSW
8
0.6
WSW
7
0.7
WSW
5
0.9
WSW
6
0.8
WSW
6
0.7
WSW
6
1
WSW
6
1.2
WSW
6
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
thunderstorm
light rain
rain showers
rain showers
clear
clear
part cloud
cloud
cloud
cloud
part cloud
part cloud
rain showers
part cloud
cloud
cloud
mod rain
rain showers
cloud
part cloud
rain showers
rain showers
some clouds
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
risk tstorm
light rain
rain shwrs
rain shwrs
clear
clear
some clouds
cloudy
cloudy
cloudy
some clouds
some clouds
rain shwrs
some clouds
cloudy
cloudy
mod rain
rain shwrs
cloudy
some clouds
rain shwrs
rain shwrs
 km/h
5
ENE
5
NNE
10
E
5
E
0
ENE
10
NNE
5
E
0
W
10
NE
5
ENE
5
SE
10
ENE
20
ESE
10
E
10
ENE
10
NW
20
NNW
10
N
15
NNW
20
NW
10
NE
20
SE
15
SE
5
NE
10
ESE
10
W
10
NW
10
W
25
WSW
15
SW
15
W
15
WNW
15
W
20
W
30
WSW
 mm 
3
3
1
1
1
8
3
1
1
max°C
14
17
15
15
17
16
15
17
16
15
17
15
16
17
15
17
18
15
18
18
14
14
15
14
14
15
13
14
14
13
15
13
12
13
13
Moonrise
12:42
1:26
1:58
2:21
2:38
2:52
3:04
3:16
3:29
3:46
4:07
Moonset
6:17
7:10
8:17
9:34
10:55
12:18
1:41
3:06
4:32
6:03
7:39
9:14
Sunrise
5:24
5:22
5:20
5:18
5:18
5:16
5:15
5:13
5:13
5:11
5:11
5:09
Sunset
9:00
9:01
9:02
9:05
9:06
9:07
9:08
9:09
9:12
9:13
9:14
9:15
Today's sea temperature in Swansea is 13.9 °C (Statistics for 15 May 1981-2005 – mean: 11.1 max: 12.7 min: 9.7°C)
Issued (local time): 12 am Thursday 15 May 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
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