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 — and sunset is at 04:06 PM.

Days 1–4 Weather Summary

Moderate rain (total 14mm), heaviest on Thu afternoon. Cool air temperatures (max 10°C on Thu afternoon, min 5°C on Sat night). Winds decreasing (strong winds from the SSE on Sat morning, calm by Sun morning).

Days 5–7 Weather Summary

Moderate rain (total 14mm), heaviest on Sun afternoon. Low air temperatures (max 9°C on Wed morning, min 6°C on Sun night). Winds decreasing (strong winds from the SSE on Sun night, light winds from the E by Tue morning).

Days 8–10 Weather Summary

Some drizzle, heaviest during Wed afternoon. Mild temperatures (max 8°C on Wed afternoon, min 5°C on Thu night). Wind will be generally light.

Days 11–13 Weather Summary

Some drizzle, heaviest during Sat night. Mild temperatures (max 8°C on Sat afternoon, min 4°C on Sun night). Wind will be generally light.

Thu
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tue
30
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
10:49PM3.20m
11:04AM3.38m
11:29PM3.26m
11:43AM3.47m
00:09AM3.29m
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
Low Tide
4:16PM0.64m
4:30AM0.66m
4:55PM0.52m
5:08AM0.60m
5:33PM0.45m
5:44AM0.56m
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
Wave
height (m) 
direction
period (s) 
1.3
SSE
7
0.8
SSW
4
0.9
SSW
4
0.7
SSE
10
0.8
SSE
5
2.1
SSE
8
1.7
SSE
8
1.1
SE
6
0.6
SE
6
1.3
ENE
5
2.2
SE
7
1.4
SSE
6
1
SSE
5
0.8
SSE
4
0.4
SSE
4
0.6
E
4
0.5
E
4
0.7
ENE
4
1.2
ENE
6
1.1
ENE
5
0.8
ENE
5
0.5
ENE
4
0.4
ENE
4
0.2
ENE
3
0.3
E
3
0.4
ENE
3
0.5
E
4
0.6
E
4
0.7
ENE
4
0.3
NE
4
0.6
ENE
4
0.7
ENE
5
0.8
ENE
5
0.8
ENE
5
0.7
ENE
5
0.8
ENE
5
light rain
part cloud
clear
clear
part cloud
light rain
light rain
rain showers
light rain
mod rain
light rain
cloud
part cloud
part cloud
clear
part cloud
light rain
light rain
light rain
part cloud
part cloud
clear
part cloud
part cloud
cloud
cloud
part cloud
cloud
light rain
part cloud
part cloud
part cloud
cloud
part cloud
clear
clear
light rain
some clouds
clear
clear
some clouds
light rain
light rain
rain shwrs
light rain
mod rain
light rain
cloudy
some clouds
some clouds
clear
some clouds
light rain
light rain
light rain
some clouds
some clouds
clear
some clouds
some clouds
cloudy
cloudy
some clouds
cloudy
light rain
some clouds
some clouds
some clouds
cloudy
some clouds
clear
clear
 km/h
25
S
35
SW
35
WSW
25
SW
25
S
45
SSE
10
S
15
S
5
N
25
E
40
SSE
30
S
20
SSE
20
SE
10
E
15
ENE
15
NNE
15
ENE
30
E
20
E
15
E
10
E
5
ENE
10
E
15
NNE
10
E
15
ENE
20
E
15
ESE
10
ESE
10
E
10
E
20
E
20
E
10
ESE
15
ESE
 mm 
4
3
5
1
1
10
1
1
2
1
1
max°C
10
8
8
8
10
10
8
7
7
8
8
8
8
8
8
8
8
9
8
8
6
6
5
6
6
6
8
8
7
7
7
5
5
6
5
5
Moonrise
8:48
9:42
10:21
10:48
11:07
11:21
11:32
11:42
11:51
12:01
12:14
12:31
Moonset
2:55
3:50
4:58
6:15
7:36
8:56
10:17
11:38
1:01
2:28
4:00
Sunrise
8:36
8:36
8:37
8:37
8:37
8:37
8:37
8:38
8:38
8:38
8:38
8:38
Sunset
4:06
4:07
4:07
4:07
4:07
4:08
4:08
4:09
4:10
4:10
4:12
4:13
Today's sea temperature in Dun Laoghaire is
10.3° C
(Statistics for 18 Dec 1981-2005 – mean: 10.1 max: 11.1 min: 9.0°C)
Issued (local time): 5 pm Thursday 18 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest