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 05:15 AM and sunset is at 09:15 PM.

Days 1–3 Weather Summary

Moderate rain (total 15mm), heaviest on Mon night. Cool air temperatures (max 12°C on Mon night, min 9°C on Sun night). Winds increasing (light winds from the W on Sun night, strong winds from the SW by Tue afternoon).

Days 4–6 Weather Summary

Light rain (total 5mm), mostly falling on Fri night. Cool air temperatures (max 17°C on Thu night, min 12°C on Wed night). Winds decreasing (strong winds from the S on Thu morning, light winds from the WNW by Sat morning).

Days 7–9 Weather Summary

Mostly dry. Warm (max 20°C on Sun night, min 16°C on Sat night). Wind will be generally light.

Days 10–12 Weather Summary

Mostly dry. Very mild (max 18°C on Tue night, min 10°C on Wed night). Winds decreasing (fresh winds from the N on Wed night, calm by Fri morning).

Days 13–16 Weather Summary

Light rain (total 6mm), mostly falling on Tue afternoon. Very mild (max 17°C on Fri night, min 10°C on Mon night). Wind will be generally light.

Monday
18
Tuesday
19
Wednesday
20
Thursday
21
Friday
22
Saturday
23
Sunday
24
Monday
25
Tuesday
26
Wednesday
27
Thursday
28
Friday
29
Saturday
30
Sunday
31
Monday
1
Tue
2
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
AM
PM
night
AM
PM
night
AM
PM
night
AM
Wave Height Map
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High Tide
12:02PM5.69m
00:23AM5.65m
12:54PM5.57m
1:14AM5.57m
1:49PM5.35m
2:07AM5.42m
2:48PM5.08m
3:05AM5.23m
3:51PM4.82m
4:08AM5.03m
5:00PM4.63m
5:18AM4.88m
6:12PM4.55m
6:31AM4.82m
7:19PM4.59m
7:37AM4.84m
8:16PM4.69m
8:33AM4.89m
9:03PM4.81m
9:20AM4.93m
9:44PM4.93m
10:01AM4.96m
10:20PM5.05m
10:38AM4.98m
10:54PM5.16m
11:13AM5.00m
11:28PM5.23m
Low Tide
6:09PM0.66m
6:37AM0.52m
6:58PM0.86m
7:31AM0.65m
7:51PM1.14m
8:28AM0.85m
8:47PM1.43m
9:29AM1.08m
9:48PM1.70m
10:36AM1.28m
10:57PM1.88m
11:47AM1.40m
00:09AM1.92m
12:56PM1.42m
1:17AM1.85m
1:55PM1.38m
2:15AM1.71m
2:46PM1.33m
3:04AM1.57m
3:28PM1.30m
3:46AM1.44m
4:06PM1.27m
4:25AM1.34m
4:42PM1.25m
5:01AM1.27m
5:16PM1.26m
Wave
Height (m)
Direction
Period (s)
0.6
SW
6
0.6
SW
6
1.4
SSW
6
1.7
SSW
7
2.3
SW
7
2.2
SW
8
1.4
SW
9
2
SSW
7
1.4
SW
6
1.5
SSW
6
1.2
SW
6
0.9
SW
7
1
SW
6
0.7
SW
7
0.6
SW
10
0.4
SW
10
0.3
SW
9
0.3
SW
9
0.3
SW
8
0.4
N
3
0.3
SW
8
0.1
SW
10
0.1
SW
10
0.1
SW
12
0.3
SSW
4
0.2
SSW
3
0.2
WSW
4
0.6
NNW
4
0.6
NNW
4
0.9
NNW
4
1
NNW
6
0.8
N
5
0.4
N
4
0.2
SSW
8
0.2
SSW
8
0.1
SW
15
0.1
SW
16
0.1
SW
16
0.1
SW
15
0.2
SSW
15
0.2
SSW
15
0.4
SW
5
0.6
SSW
3
0.6
SSW
4
0.4
WNW
3
0.4
NNW
3
cloud
cloud
rain showers
rain showers
part cloud
rain showers
part cloud
part cloud
rain showers
part cloud
part cloud
part cloud
part cloud
part cloud
light rain
part cloud
clear
clear
clear
clear
clear
part cloud
part cloud
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
light rain
part cloud
part cloud
cloudy
cloudy
rain shwrs
rain shwrs
some clouds
rain shwrs
some clouds
some clouds
rain shwrs
some clouds
some clouds
some clouds
some clouds
some clouds
light rain
some clouds
clear
clear
clear
clear
clear
some clouds
some clouds
clear
clear
some clouds
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
some clouds
some clouds
light rain
some clouds
some clouds
km/h
10
SW
25
S
35
SSE
40
S
50
SSW
35
SW
35
SW
40
SSW
35
S
40
S
30
SSW
20
SSE
25
SSW
20
SSW
15
SSW
10
WSW
10
NNW
10
NE
15
NE
20
NNE
15
NE
5
SSW
10
N
10
SSE
10
SSW
15
SW
15
N
15
N
20
N
30
N
25
NNE
30
NE
15
E
5
E
10
NNE
10
ENE
5
NW
15
N
5
E
15
SSW
15
SSW
20
S
25
S
20
SW
15
NNW
20
N
7
2
2
1
4
1
max °C
10
11
12
12
12
11
12
12
12
15
16
17
15
17
17
16
17
17
18
18
20
20
20
20
18
18
18
16
15
15
14
17
17
14
16
17
15
17
17
15
16
15
14
13
10
11
Moonrise
5:38
6:43
8:06
9:38
11:09
12:34
1:54
3:12
4:28
5:44
7:00
8:16
9:30
10:37
11:33
Moonset
12:25
1:17
1:49
2:10
2:25
2:36
2:46
2:55
3:04
3:15
3:29
3:47
4:13
4:51
5:42
Sunrise
5:15
5:13
5:11
5:09
5:09
5:07
5:05
5:05
5:03
5:03
5:01
5:00
4:58
4:58
4:56
4:56
Sunset
9:15
9:16
9:17
9:20
9:21
9:22
9:23
9:25
9:27
9:28
9:30
9:30
9:31
9:34
9:35
Today's sea temperature in Holyhead is
10.8° C
(Statistics for 18 May 1981-2005 – mean: 10.7 max: 12.2 min: 8.7°C)
Issued (local time): 12 am Monday 18 May 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest