Dun Laoghaire Sea Conditions and Tide Table

Dun Laoghaire 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 08:37 AM and sunset is at 04:07 PM.

Days 1–3 Weather Summary

Light rain (total 5mm), mostly falling on Sun night. Cool air temperatures (max 10°C on Sun morning, min 8°C on Sun morning). Wind will be generally light.

Days 4–6 Weather Summary

Mostly dry. Low air temperatures (max 8°C on Wed morning, min 4°C on Fri night). Wind will be generally light.

Days 7–9 Weather Summary

Mostly dry. Mild temperatures (max 9°C on Mon night, min 4°C on Sun night). Winds decreasing (fresh winds from the NE on Sat night, light winds from the N by Sun night).

Days 10–12 Weather Summary

Mostly dry. Very mild (max 10°C on Tue afternoon, min 7°C on Wed afternoon). Wind will be generally light.

Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
Thursday
1
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
12:21PM3.54m
00:48AM3.27m
12:59PM3.58m
1:27AM3.23m
1:37PM3.58m
2:07AM3.16m
2:15PM3.55m
2:48AM3.09m
2:55PM3.48m
3:33AM3.03m
3:37PM3.40m
4:22AM2.99m
4:25PM3.30m
5:17AM2.97m
5:20PM3.22m
6:17AM3.00m
6:25PM3.18m
7:21AM3.07m
7:37PM3.21m
8:26AM3.21m
8:49PM3.32m
9:27AM3.39m
9:56PM3.47m
Low Tide
6:11PM0.41m
6:19AM0.55m
6:49PM0.40m
6:55AM0.57m
7:28PM0.43m
7:33AM0.62m
8:09PM0.47m
8:13AM0.71m
8:52PM0.51m
8:58AM0.83m
9:40PM0.57m
9:49AM0.95m
10:34PM0.62m
10:50AM1.03m
11:36PM0.65m
11:59AM1.04m
00:42AM0.64m
1:11PM0.93m
1:47AM0.58m
2:17PM0.71m
2:47AM0.48m
3:16PM0.45m
3:42AM0.36m
Wave
height (m) 
direction
period (s) 
0.9
SE
5
0.7
ESE
4
1.1
ENE
5
0.8
ENE
5
0.8
E
5
0.4
ESE
4
0.4
ENE
4
0.5
E
4
0.6
NE
4
0.9
NE
4
1.1
ENE
5
1
ENE
5
0.9
ENE
5
1.1
ENE
5
1.2
ENE
6
0.9
ENE
5
0.6
ENE
5
0.7
NE
4
0.9
NE
4
0.9
NE
5
1.2
NE
6
1.2
NE
5
1
NE
5
0.5
NE
4
0.3
NE
3
0.5
NE
4
0.9
ENE
5
0.9
NE
5
0.9
NE
5
1
ENE
5
0.7
NE
4
0.6
ENE
4
0.4
ENE
4
0.6
NE
4
0.4
NE
3
0.6
NE
4
cloud
part cloud
light rain
cloud
cloud
part cloud
part cloud
part cloud
cloud
part cloud
part cloud
part cloud
clear
clear
clear
part cloud
cloud
part cloud
part cloud
part cloud
part cloud
cloud
part cloud
part cloud
part cloud
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
cloudy
some clouds
light rain
cloudy
cloudy
some clouds
some clouds
some clouds
cloudy
some clouds
some clouds
some clouds
clear
clear
clear
some clouds
cloudy
some clouds
some clouds
some clouds
some clouds
cloudy
some clouds
some clouds
some clouds
cloudy
some clouds
some clouds
some clouds
some clouds
some clouds
some clouds
some clouds
some clouds
some clouds
cloudy
 km/h
10
SE
10
E
20
ENE
10
ESE
15
SE
5
ESE
10
NNE
10
NNE
15
N
25
ENE
25
E
25
E
20
E
25
ENE
25
E
20
E
15
ENE
20
NNE
25
NE
25
NE
30
NE
30
NNE
20
NNE
10
NW
10
NNW
15
NNE
20
ENE
20
ENE
20
ENE
20
NE
20
NE
15
NNE
15
NE
15
NE
10
NE
15
NE
 mm 
5
max°C
10
9
10
10
10
10
9
9
9
8
7
7
5
6
5
5
6
6
7
7
7
6
5
5
5
8
9
9
10
9
8
8
8
7
7
8
Moonrise
10:21
10:48
11:07
11:21
11:32
11:42
11:51
12:01
12:14
12:31
12:56
1:35
Moonset
4:58
6:15
7:36
8:56
10:17
11:38
1:01
2:28
4:00
5:35
7:08
Sunrise
8:37
8:37
8:37
8:37
8:37
8:38
8:38
8:38
8:38
8:38
8:38
8:38
Sunset
4:07
4:07
4:08
4:08
4:09
4:10
4:10
4:12
4:13
4:14
4:15
4:16
Today's sea temperature in Dun Laoghaire is
10.4° C
(Statistics for 21 Dec 1981-2005 – mean: 10.0 max: 11.1 min: 9.0°C)
Issued (local time): 5 am Sunday 21 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest