High and low water times and heights at Holyhead

Tidal predictions are available for the next 28 days. For information beyond this period, please consider using the POLTIPS·3 software package, available for purchase from the Marine Data Products Team.

Times in GMT, heights in metres above chart datum. For times in BST, add one hour.
Predictions DO NOT include meteorological effects.
(H - high water, L - low water)

Prediction chart   UK & Ireland
© National Oceanography Centre, Liverpool
Thu 28th
Oct 2021
02:33
4.46m H
08:35
2.43m L
14:56
4.57m H
21:32
2.37m L
Fri 29th03:50
4.26m H
09:51
2.62m L
16:20
4.46m H
22:56
2.34m L
Sat 30th05:24
4.30m H
11:20
2.56m L
17:47
4.58m H
Sun 31st00:13
2.08m L
06:39
4.55m H
12:33
2.27m L
18:52
4.86m H
Mon 1st
Nov 2021
01:11
1.69m L
07:32
4.88m H
13:26
1.87m L
19:41
5.19m H
Tue 2nd01:57
1.28m L
08:15
5.22m H
14:09
1.46m L
20:23
5.52m H
Wed 3rd02:37
0.92m L
08:53
5.53m H
14:50
1.09m L
21:03
5.81m H
Thu 4th03:16
0.64m L
09:30
5.77m H
15:30
0.79m L
21:43
6.02m H
Fri 5th03:56
0.47m L
10:09
5.94m H
16:10
0.61m L
22:26
6.13m H
Sat 6th04:36
0.45m L
10:51
6.01m H
16:54
0.56m L
23:11
6.09m H
Sun 7th05:20
0.59m L
11:34
5.97m H
17:41
0.66m L
23:58
5.90m H
Mon 8th06:06
0.87m L
12:21
5.81m H
18:32
0.88m L
Tue 9th00:51
5.59m H
06:57
1.25m L
13:12
5.57m H
19:29
1.19m L
Wed 10th01:49
5.20m H
07:56
1.67m L
14:10
5.29m H
20:36
1.51m L
Thu 11th03:00
4.84m H
09:06
2.03m L
15:21
5.04m H
21:53
1.73m L
Fri 12th04:28
4.63m H
10:26
2.23m L
16:45
4.93m H
23:15
1.77m L
Sat 13th05:54
4.65m H
11:46
2.19m L
18:04
4.98m H
Sun 14th00:30
1.65m L
07:03
4.81m H
12:54
2.00m L
19:08
5.12m H
Mon 15th01:28
1.49m L
07:55
4.99m H
13:47
1.77m L
19:58
5.26m H
Tue 16th02:15
1.34m L
08:35
5.14m H
14:30
1.56m L
20:39
5.37m H
Wed 17th02:52
1.25m L
09:09
5.28m H
15:07
1.40m L
21:15
5.45m H
Thu 18th03:25
1.20m L
09:40
5.38m H
15:41
1.30m L
21:48
5.49m H
Fri 19th03:56
1.19m L
10:10
5.46m H
16:14
1.26m L
22:21
5.48m H
Sat 20th04:26
1.23m L
10:41
5.49m H
16:46
1.29m L
22:55
5.42m H
Sun 21st04:57
1.32m L
11:12
5.47m H
17:19
1.37m L
23:28
5.32m H
Mon 22nd05:27
1.45m L
11:43
5.41m H
17:54
1.49m L
Tue 23rd00:03
5.18m H
06:01
1.61m L
12:17
5.31m H
18:31
1.64m L
Wed 24th00:40
5.00m H
06:37
1.80m L
12:54
5.16m H
19:13
1.80m L

Disclaimer

While every effort has been made to ensure the accuracy of the information provided, no responsibility can be accepted by the National Oceanographiy Centre for any consequential loss or damage arising from its use.

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