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 03:56 PM.

Days 1–4 Weather Summary

Moderate rain (total 10mm), heaviest on Tue night. Cool air temperatures (max 10°C on Wed morning, min 4°C on Tue afternoon). Winds increasing (light winds from the SSW on Tue night, fresh winds from the SW by Thu night).

Days 5–7 Weather Summary

Heavy rain (total 32mm), heaviest during Sat afternoon. Cool air temperatures (max 10°C on Fri night, min 5°C on Sat night). Mainly fresh winds.

Days 8–10 Weather Summary

Some drizzle, heaviest during Mon afternoon. Mild temperatures (max 9°C on Mon afternoon, min 4°C on Wed night). Winds decreasing (fresh winds from the E on Mon afternoon, light winds from the ENE by Wed night).

Days 11–13 Weather Summary

Mostly dry. Mild temperatures (max 6°C on Thu night, min 4°C on Sat night). Wind will be generally light.

Tue
16
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sun
28
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
8:35PM3.07m
9:10AM3.11m
9:24PM3.09m
9:53AM3.20m
10:10PM3.11m
10:33AM3.28m
10:53PM3.12m
11:11AM3.33m
11:34PM3.12m
11:48AM3.36m
00:14AM3.10m
12:24PM3.37m
00:53AM3.07m
1:00PM3.37m
1:33AM3.02m
1:37PM3.36m
2:14AM2.97m
2:17PM3.34m
2:58AM2.93m
3:01PM3.31m
3:47AM2.90m
3:52PM3.28m
4:40AM2.89m
Low Tide
2:24PM1.16m
2:47AM0.95m
3:11PM1.07m
3:28AM0.92m
3:55PM0.98m
4:08AM0.90m
4:36PM0.90m
4:46AM0.89m
5:16PM0.84m
5:24AM0.90m
5:55PM0.80m
6:00AM0.94m
6:34PM0.78m
6:38AM0.98m
7:13PM0.77m
7:16AM1.04m
7:55PM0.78m
7:56AM1.10m
8:39PM0.80m
8:41AM1.15m
9:28PM0.83m
9:33AM1.19m
10:23PM0.86m
10:32AM1.20m
Wave
height (m) 
direction
period (s) 
clear
rain showers
light rain
rain showers
part cloud
light rain
rain showers
part cloud
part cloud
cloud
cloud
mod rain
heavy rain
mod rain
rain showers
clear
part cloud
light rain
rain showers
part cloud
cloud
cloud
part cloud
part cloud
part cloud
clear
part cloud
cloud
cloud
cloud
cloud
cloud
part cloud
part cloud
part cloud
part cloud
clear
rain shwrs
light rain
rain shwrs
some clouds
light rain
rain shwrs
some clouds
some clouds
cloudy
cloudy
mod rain
heavy rain
mod rain
rain shwrs
clear
some clouds
light rain
rain shwrs
some clouds
cloudy
cloudy
some clouds
some clouds
some clouds
clear
some clouds
cloudy
cloudy
cloudy
cloudy
cloudy
some clouds
some clouds
some clouds
some clouds
 km/h
10
SW
15
S
30
SSW
15
SSW
25
SW
10
SSE
25
SSE
35
SW
35
SW
25
SW
20
S
30
SSE
10
SSW
5
NW
35
ESE
20
SSE
15
E
30
ENE
35
E
25
E
30
ENE
25
ENE
25
ENE
15
ENE
10
ENE
15
ENE
20
ENE
25
ENE
30
E
25
ENE
25
ENE
25
E
20
ENE
15
NE
15
NNE
20
NE
 mm 
3
2
1
1
3
7
11
9
4
1
1
max°C
5
8
10
9
7
9
9
7
7
7
10
10
8
8
8
6
9
9
9
9
8
7
7
6
6
5
4
5
6
6
5
5
5
6
5
5
Moonrise
6:37
7:53
9:00
9:53
10:31
10:56
11:13
11:25
11:34
11:42
11:50
11:58
Moonset
1:37
2:02
2:41
3:36
4:46
6:06
7:28
8:51
10:13
11:36
1:01
Sunrise
8:41
8:41
8:41
8:42
8:44
8:44
8:45
8:45
8:45
8:45
8:45
8:45
Sunset
3:56
3:56
3:57
3:57
3:57
3:59
3:59
4:00
4:00
4:00
4:01
4:02
Today's sea temperature in Belfast is
9.9° C
(Statistics for 16 Dec 1981-2005 – mean: 9.9 max: 11.2 min: 8.7°C)
Issued (local time): 5 pm Tuesday 16 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest