Belfast Sea Conditions and Tide Table

Belfast 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 10:02 PM.

Days 1–4 Weather Summary

Light rain (total 7mm), mostly falling on Sun afternoon. Warm air temperatures (max 22°C on Sat afternoon, min 11°C on Sun night). Mainly fresh winds.

Days 5–7 Weather Summary

Light rain (total 7mm), mostly falling on Wed night. Cool air temperatures (max 19°C on Fri morning, min 11°C on Wed night). Wind will be generally light.

Days 8–10 Weather Summary

Light rain (total 5mm), mostly falling on Fri afternoon. Warm (max 22°C on Fri afternoon, min 9°C on Sun night). Winds decreasing (fresh winds from the SW on Fri afternoon, light winds from the NNW by Sun night).

Days 11–13 Weather Summary

Light rain (total 8mm), mostly falling on Tue afternoon. Very mild (max 18°C on Mon afternoon, min 8°C on Tue night). Winds decreasing (fresh winds from the SSE on Tue morning, light winds from the WNW by Wed night).

Sat
21
Sunday
22
Monday
23
Tuesday
24
Wednesday
25
Thursday
26
Friday
27
Saturday
28
Sunday
29
Monday
30
Tuesday
1
Wednesday
2
Thu
3
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
AM
Wave Height Map
High Tide
8:21PM3.00m
8:38AM3.24m
9:19PM3.14m
9:41AM3.30m
10:14PM3.30m
10:40AM3.34m
11:06PM3.44m
11:36AM3.36m
11:56PM3.54m
12:28PM3.34m
00:44AM3.60m
1:19PM3.28m
1:32AM3.60m
2:09PM3.20m
2:19AM3.55m
2:57PM3.08m
3:06AM3.46m
3:45PM2.97m
3:53AM3.33m
4:34PM2.86m
4:42AM3.19m
5:25PM2.78m
5:33AM3.05m
Low Tide
2:04PM0.63m
2:25AM0.83m
3:01PM0.57m
3:25AM0.67m
3:55PM0.51m
4:21AM0.51m
4:46PM0.48m
5:15AM0.38m
5:35PM0.47m
6:07AM0.30m
6:22PM0.50m
6:57AM0.28m
7:09PM0.57m
7:47AM0.32m
7:55PM0.66m
8:36AM0.41m
8:41PM0.78m
9:25AM0.54m
9:29PM0.91m
10:16AM0.67m
10:20PM1.04m
11:08AM0.80m
11:14PM1.15m
12:02PM0.91m
Wave
height (m) 
direction
period (s) 
clear
rain showers
rain showers
rain showers
part cloud
part cloud
part cloud
light rain
light rain
cloud
cloud
part cloud
part cloud
rain showers
part cloud
part cloud
rain showers
light rain
rain showers
clear
part cloud
part cloud
light rain
light rain
rain showers
part cloud
part cloud
cloud
part cloud
rain showers
rain showers
clear
rain showers
rain showers
clear
part cloud
clear
rain shwrs
rain shwrs
rain shwrs
some clouds
some clouds
some clouds
light rain
light rain
cloudy
cloudy
some clouds
some clouds
rain shwrs
some clouds
some clouds
rain shwrs
light rain
rain shwrs
clear
some clouds
some clouds
light rain
light rain
rain shwrs
some clouds
some clouds
cloudy
some clouds
rain shwrs
rain shwrs
clear
rain shwrs
rain shwrs
clear
some clouds
 km/h
15
S
15
WSW
25
WSW
25
WSW
25
WSW
30
W
25
W
20
SW
25
WSW
20
W
15
SW
15
WSW
15
SSW
15
SW
15
W
20
WSW
10
S
20
S
30
SW
25
SW
25
W
20
WSW
10
SW
15
SW
10
WNW
5
W
10
WSW
10
S
15
SE
25
SSE
20
S
10
W
15
W
15
NW
10
WSW
20
WSW
 mm 
1
1
3
1
1
5
1
1
1
1
1
2
1
4
1
2
max°C
22
17
16
15
13
16
17
15
14
17
14
18
18
13
15
16
14
19
22
15
17
18
15
14
14
12
16
18
14
18
16
11
15
16
12
16
Moonrise
1:49
2:02
2:23
2:56
3:51
5:08
6:38
8:09
9:37
10:58
12:16
1:31
2:46
Moonset
5:31
7:10
8:46
10:08
11:05
11:39
12:00
12:14
12:23
12:31
12:37
12:43
Sunrise
4:47
4:47
4:47
4:48
4:48
4:48
4:48
4:50
4:50
4:50
4:52
4:52
Sunset
10:02
10:02
10:04
10:04
10:04
10:04
10:02
10:02
10:02
10:02
10:01
10:01
Today's sea temperature in Belfast is 14.3 °C (Statistics for 21 Jun 1981-2005 – mean: 12.7 max: 14.0 min: 11.5°C)
Issued (local time): 6 pm Saturday 21 Jun 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest