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 08:19 AM and sunset is at 04:08 PM.

Days 1–3 Weather Summary

Mostly dry. Low air temperatures (max 9°C on Tue morning, min 2°C on Wed afternoon). Winds increasing (light winds from the E on Tue morning, strong winds from the ENE by Thu morning).

Days 4–6 Weather Summary

Mostly dry. Low air temperatures (max 6°C on Fri night, min 2°C on Fri morning). Winds decreasing (fresh winds from the ENE on Fri night, calm by Sun night).

Days 7–9 Weather Summary

Light rain (total 2mm), mostly falling on Wed afternoon. Mild temperatures (max 6°C on Wed morning, min 2°C on Mon morning). Wind will be generally light.

Days 10–12 Weather Summary

Light rain (total 9mm), mostly falling on Sat night. Mild temperatures (max 9°C on Sat night, min 1°C on Thu night). Winds increasing (calm on Fri afternoon, fresh winds from the NNW by Sat night).

Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
Thursday
1
Friday
2
Saturday
3
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
Wave Height Map
High Tide
8:07AM8.87m
8:27PM8.64m
8:44AM8.80m
9:06PM8.52m
9:25AM8.66m
9:48PM8.34m
10:10AM8.48m
10:36PM8.14m
11:00AM8.27m
11:30PM7.94m
11:58AM8.08m
00:33AM7.82m
1:05PM7.99m
1:43AM7.86m
2:17PM8.07m
2:53AM8.11m
3:26PM8.34m
3:59AM8.46m
4:30PM8.66m
4:58AM8.96m
5:26PM9.07m
5:51AM9.41m
6:17PM9.40m
Low Tide
2:10PM1.83m
2:25AM1.95m
2:48PM1.93m
3:04AM2.08m
3:30PM2.09m
3:48AM2.26m
4:16PM2.29m
4:37AM2.48m
5:11PM2.50m
5:35AM2.67m
6:13PM2.65m
6:43AM2.77m
7:23PM2.67m
7:56AM2.69m
8:34PM2.50m
9:06AM2.40m
9:39PM2.18m
10:10AM2.04m
10:38PM1.85m
11:08AM1.58m
11:32PM1.47m
12:00PM1.19m
00:21AM1.18m
Wave
height (m) 
direction
period (s) 
0.7
WSW
10
0.6
WSW
11
0.9
ESE
5
0.9
ESE
5
1
ESE
5
1
E
4
1.1
E
4
1.2
E
5
1.1
E
4
0.8
E
4
0.8
E
4
0.8
E
4
0.9
ESE
5
0.5
WSW
10
0.5
WSW
14
0.4
WSW
12
0.4
WSW
11
0.3
WSW
15
0.2
WSW
14
0.2
WSW
13
0.2
WSW
12
0.4
SW
18
0.4
SW
16
0.4
WSW
15
0.4
SW
14
0.5
WSW
13
0.3
WSW
12
0.7
W
4
0.6
W
5
0.3
W
6
0.4
ESE
4
0.1
W
10
0.3
W
3
0.5
W
4
0.7
W
4
1.3
WSW
6
cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
rain showers
part cloud
rain showers
part cloud
part cloud
part cloud
part cloud
cloud
cloud
light rain
mod rain
cloudy
some clouds
some clouds
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
some clouds
rain shwrs
some clouds
rain shwrs
some clouds
some clouds
some clouds
some clouds
cloudy
cloudy
light rain
mod rain
 km/h
20
E
20
ENE
25
ENE
25
ENE
25
ENE
35
ENE
40
ENE
40
ENE
35
ENE
25
ENE
25
ENE
30
ENE
20
ENE
15
ENE
15
ENE
10
NE
10
ENE
10
NNE
5
NNE
5
NNW
5
ENE
15
NE
15
NNE
15
NNW
10
NNW
20
NW
10
N
30
NW
15
NNW
15
NNE
15
NE
5
NW
10
WNW
25
NW
20
WNW
30
W
 mm 
2
1
1
7
max°C
9
7
5
3
3
3
4
4
2
4
4
6
6
6
5
3
3
2
3
4
4
4
3
4
6
6
5
8
8
6
2
2
7
7
8
9
Moonrise
10:51
11:07
11:20
11:32
11:43
11:55
12:10
12:30
12:58
1:40
2:42
4:03
Moonset
7:33
8:51
10:09
11:28
12:49
2:13
3:42
5:15
6:45
8:02
8:58
Sunrise
8:19
8:19
8:21
8:21
8:21
8:21
8:21
8:21
8:21
8:21
8:21
8:21
Sunset
4:08
4:08
4:09
4:10
4:10
4:12
4:13
4:14
4:15
4:15
4:16
4:19
Today's sea temperature in Swansea is
9.5° C
(Statistics for 23 Dec 1981-2005 – mean: 10.7 max: 11.8 min: 9.7°C)
Issued (local time): 5 am Tuesday 23 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest