Cardiff Sea Conditions and Tide Table

Cardiff 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 04:54 AM and sunset is at 09:31 PM.

Days 1–3 Weather Summary

Some drizzle, heaviest during Sat afternoon. Warm air temperatures (max 26°C on Thu afternoon, min 16°C on Wed night). Wind will be generally light.

Days 4–6 Weather Summary

Light rain (total 2mm), mostly falling on Sun night. Cool air temperatures (max 18°C on Sun morning, min 12°C on Mon night). Mainly fresh winds.

Days 7–9 Weather Summary

Light rain (total 8mm), mostly falling on Thu night. Warm (max 21°C on Wed afternoon, min 14°C on Tue night). Winds increasing (light winds from the WSW on Wed morning, strong winds from the W by Fri afternoon).

Days 10–12 Weather Summary

Some drizzle, heaviest during Fri night. Very mild (max 19°C on Mon afternoon, min 12°C on Sun night). Winds decreasing (fresh winds from the W on Fri night, light winds from the WNW by Sat night).

Thursday
19
Friday
20
Saturday
21
Sunday
22
Monday
23
Tuesday
24
Wednesday
25
Thursday
26
Friday
27
Saturday
28
Sunday
29
Mon
30
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
2:05PM9.54m
2:35AM9.81m
3:12PM9.60m
3:41AM9.91m
4:16PM9.89m
4:44AM10.19m
5:15PM10.34m
5:41AM10.58m
6:09PM10.85m
6:34AM10.99m
7:00PM11.33m
7:23AM11.34m
7:47PM11.71m
8:10AM11.56m
8:33PM11.93m
8:56AM11.62m
9:18PM11.96m
9:41AM11.51m
10:03PM11.80m
10:26AM11.23m
10:47PM11.47m
11:12AM10.83m
Low Tide
7:52AM3.11m
8:16PM3.31m
8:52AM3.16m
9:19PM3.31m
9:54AM3.05m
10:23PM3.13m
10:57AM2.80m
11:27PM2.79m
11:57AM2.43m
00:27AM2.36m
12:52PM2.05m
1:21AM1.94m
1:43PM1.72m
2:12AM1.60m
2:31PM1.51m
2:59AM1.41m
3:17PM1.46m
3:45AM1.39m
4:02PM1.56m
4:30AM1.55m
4:46PM1.82m
5:14AM1.86m
5:30PM2.19m
Wave
height (m) 
direction
period (s) 
0.1
NE
2.0
0
W
2.0
0
W
2.0
0.1
E
2.0
0.3
SE
2.0
0
E
1.0
0
E
2.0
0.2
WSW
2.0
0.2
WSW
2.0
0.4
SW
3.0
0.5
WSW
3.0
0.4
SW
3.0
0.5
W
3.0
0.6
WSW
3.0
0.3
WSW
3.0
0.3
WSW
2.0
0.4
WSW
3.0
0.1
SW
2.0
0.1
SW
2.0
0.1
SW
2.0
0.1
SW
2.0
0.4
SW
3.0
0.5
WSW
3.0
0.7
SW
4.0
0.9
SW
4.0
1
WSW
4.0
0.7
WSW
4.0
0.6
WSW
3.0
0.7
WSW
4.0
0.3
WSW
3.0
0.1
W
2.0
0.4
SW
3.0
0.2
WSW
2.0
0.1
W
3.0
0.1
SW
3.0
clear
part cloud
cloud
cloud
clear
clear
cloud
rain showers
clear
part cloud
part cloud
rain showers
part cloud
clear
clear
clear
clear
part cloud
cloud
part cloud
part cloud
part cloud
part cloud
light rain
rain showers
clear
rain showers
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
some clouds
cloudy
cloudy
clear
clear
cloudy
rain shwrs
clear
some clouds
some clouds
rain shwrs
some clouds
clear
clear
clear
clear
some clouds
cloudy
some clouds
some clouds
some clouds
some clouds
light rain
rain shwrs
clear
rain shwrs
clear
clear
some clouds
some clouds
clear
clear
clear
clear
 km/h
15
ENE
10
SE
10
ENE
15
E
20
SE
10
NE
5
ESE
20
WNW
15
W
25
W
30
W
20
SW
25
W
30
W
15
WNW
20
W
25
W
10
WSW
10
SW
10
WSW
10
WSW
25
WSW
30
WSW
35
SSW
35
WSW
45
W
30
W
30
W
30
W
15
W
15
W
25
W
15
WNW
10
NW
15
NW
 mm 
1
2
4
4
1
max°C
23
26
23
23
26
22
22
19
16
18
18
16
15
16
15
16
16
15
20
21
17
20
21
18
17
16
14
15
16
14
16
17
14
17
19
Moonrise
1:20
1:32
1:47
2:05
2:32
3:10
4:07
5:21
6:47
8:12
9:34
10:52
Moonset
2:10
3:36
5:06
6:39
8:09
9:28
10:27
11:07
11:33
11:52
12:06
Sunrise
4:54
4:54
4:54
4:54
4:54
4:56
4:56
4:56
4:56
4:56
4:58
4:58
Sunset
9:31
9:31
9:32
9:32
9:32
9:32
9:32
9:32
9:32
9:32
9:32
9:32
Today's sea temperature in Cardiff is 17.5 °C (Statistics for 19 Jun 1981-2005 – mean: 13.4 max: 14.4 min: 12.0°C)
Issued (local time): 12 am Thursday 19 Jun 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest