Holyhead Sea Conditions and Tide Table

Holyhead 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 —.

Days 1–4 Weather Summary

Light rain (total 6mm), mostly falling on Sat night. Cool air temperatures (max 10°C on Fri morning, min 8°C on Sat night). Winds decreasing (near gales from the SW on Thu night, light winds from the ESE by Sat night).

Days 5–7 Weather Summary

Light rain (total 3mm), mostly falling on Tue afternoon. Low air temperatures (max 9°C on Sun night, min 6°C on Wed afternoon). Winds increasing (light winds from the ESE on Mon night, fresh winds from the E by Wed morning).

Days 8–10 Weather Summary

Mostly dry. Mild temperatures (max 9°C on Fri morning, min 5°C on Wed night). Winds increasing (light winds from the NNE on Fri morning, strong winds from the NE by Fri night).

Days 11–13 Weather Summary

Light rain (total 2mm), mostly falling on Sat night. Mild temperatures (max 5°C on Sat night, min 2°C on Sun night). Winds decreasing (fresh winds from the ENE on Sat night, light winds from the ESE by Mon morning).

Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tue
30
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
PM
Wave Height Map
High Tide
9:33PM5.02m
9:50AM5.27m
10:08PM5.09m
10:24AM5.38m
10:44PM5.12m
10:58AM5.44m
11:19PM5.10m
11:34AM5.46m
11:56PM5.06m
12:09PM5.43m
00:33AM4.99m
12:47PM5.37m
1:13AM4.91m
1:27PM5.29m
1:58AM4.83m
2:13PM5.20m
2:48AM4.75m
3:05PM5.11m
3:46AM4.69m
4:04PM5.03m
4:51AM4.67m
5:11PM5.00m
6:00AM4.75m
Low Tide
3:36AM1.56m
3:57PM1.55m
4:10AM1.51m
4:32PM1.45m
4:45AM1.48m
5:08PM1.39m
5:19AM1.49m
5:44PM1.37m
5:55AM1.53m
6:21PM1.37m
6:33AM1.59m
7:01PM1.40m
7:13AM1.67m
7:45PM1.43m
7:59AM1.76m
8:33PM1.48m
8:51AM1.85m
9:29PM1.54m
9:51AM1.92m
10:31PM1.58m
10:57AM1.93m
11:38PM1.56m
12:08PM1.83m
Wave
height (m) 
direction
period (s) 
2.1
SW
6
2.5
SW
7
2.1
SW
6
1.7
SSW
6
2.2
SSW
7
2.4
SSW
8
1.8
SSW
8
1.1
SW
10
0.9
SSW
9
0.7
SW
8
0.9
SSW
5
0.6
SSW
7
0.4
SW
8
0.5
SSW
5
0.4
SSW
7
0.6
SSW
7
0.9
ENE
4
0.8
ENE
4
0.7
NE
4
0.6
NE
3
0.5
NE
3
0.4
ENE
3
0.4
NNE
3
0.8
N
4
1.1
NNE
5
1.1
NE
5
0.9
ENE
4
1
NE
4
0.6
ENE
4
0.5
NE
3
0.3
ENE
3
0.2
ESE
3
0.2
S
6
0.3
SE
3
0.4
ENE
3
0.6
NE
3
rain showers
part cloud
clear
part cloud
part cloud
cloud
rain showers
light rain
light rain
cloud
cloud
cloud
part cloud
light rain
light rain
part cloud
cloud
cloud
part cloud
part cloud
part cloud
part cloud
cloud
cloud
part cloud
part cloud
part cloud
light rain
part cloud
part cloud
part cloud
cloud
cloud
part cloud
part cloud
cloud
rain shwrs
some clouds
clear
some clouds
some clouds
cloudy
rain shwrs
light rain
light rain
cloudy
cloudy
cloudy
some clouds
light rain
light rain
some clouds
cloudy
cloudy
some clouds
some clouds
some clouds
some clouds
cloudy
cloudy
some clouds
some clouds
some clouds
light rain
some clouds
some clouds
some clouds
cloudy
cloudy
some clouds
some clouds
cloudy
 km/h
50
SW
45
WSW
40
SW
35
SSW
45
SSE
45
SSE
35
SSE
25
E
25
ESE
15
SSE
20
SSE
10
SSE
5
ESE
25
ENE
20
ENE
25
E
35
E
35
ENE
30
E
30
ENE
25
ENE
20
ENE
20
NNE
30
NNE
35
ENE
35
ENE
35
E
35
ENE
25
E
25
E
20
E
15
ESE
15
E
15
ESE
20
E
25
ENE
 mm 
1
2
1
2
1
2
1
max°C
9
10
10
10
10
10
9
8
9
9
8
8
8
7
7
8
7
6
6
5
5
6
9
8
8
5
5
5
3
3
3
3
3
4
4
4
Moonrise
8:42
9:36
10:15
10:42
11:01
11:15
11:27
11:36
11:45
11:55
12:08
12:25
Moonset
2:48
3:43
4:51
6:08
7:29
8:49
10:10
11:31
12:54
2:21
3:53
Sunrise
8:30
8:30
8:30
8:30
8:32
8:32
8:32
8:33
8:33
8:33
8:33
8:33
Sunset
4:00
4:00
4:00
4:01
4:01
4:02
4:04
4:04
4:05
4:06
4:07
4:07
Today's sea temperature in Holyhead is
10.6° C
(Statistics for 18 Dec 1981-2005 – mean: 10.0 max: 11.0 min: 8.9°C)
Issued (local time): 11 pm Thursday 18 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest