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 Applications 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 27th
Nov 2014
01:05
5.39m H
07:09
1.28m L
13:25
5.59m H
19:42
1.14m L
Fri 28th02:00
5.18m H
08:05
1.51m L
14:21
5.40m H
20:42
1.31m L
Sat 29th03:03
4.98m H
09:09
1.72m L
15:25
5.23m H
21:50
1.44m L
Sun 30th04:16
4.86m H
10:21
1.83m L
16:37
5.14m H
23:03
1.47m L
Mon 1st
Dec 2014
05:33
4.87m H
11:35
1.78m L
17:51
5.17m H
Tue 2nd00:12
1.39m L
06:43
5.01m H
12:42
1.62m L
18:57
5.28m H
Wed 3rd01:15
1.26m L
07:41
5.20m H
13:42
1.40m L
19:55
5.42m H
Thu 4th02:09
1.12m L
08:30
5.39m H
14:34
1.18m L
20:45
5.54m H
Fri 5th02:57
1.01m L
09:14
5.56m H
15:21
1.01m L
21:32
5.61m H
Sat 6th03:39
0.95m L
09:55
5.68m H
16:05
0.90m L
22:15
5.62m H
Sun 7th04:19
0.95m L
10:35
5.73m H
16:46
0.89m L
22:57
5.57m H
Mon 8th04:58
1.02m L
11:14
5.71m H
17:27
0.95m L
23:37
5.46m H
Tue 9th05:36
1.14m L
11:52
5.62m H
18:06
1.08m L
Wed 10th00:16
5.30m H
06:13
1.31m L
12:29
5.49m H
18:46
1.25m L
Thu 11th00:54
5.13m H
06:51
1.52m L
13:06
5.32m H
19:26
1.45m L
Fri 12th01:33
4.93m H
07:31
1.76m L
13:45
5.13m H
20:09
1.66m L
Sat 13th02:17
4.74m H
08:15
2.00m L
14:29
4.94m H
20:58
1.87m L
Sun 14th03:08
4.57m H
09:07
2.22m L
15:22
4.75m H
21:54
2.02m L
Mon 15th04:09
4.46m H
10:09
2.36m L
16:27
4.64m H
22:57
2.08m L
Tue 16th05:18
4.46m H
11:18
2.36m L
17:37
4.64m H
Wed 17th00:03
2.02m L
06:25
4.60m H
12:24
2.21m L
18:42
4.75m H
Thu 18th01:00
1.85m L
07:22
4.83m H
13:21
1.96m L
19:39
4.94m H
Fri 19th01:51
1.62m L
08:10
5.09m H
14:11
1.66m L
20:27
5.15m H
Sat 20th02:35
1.37m L
08:52
5.36m H
14:55
1.35m L
21:11
5.35m H
Sun 21st03:17
1.14m L
09:32
5.60m H
15:38
1.07m L
21:53
5.53m H
Mon 22nd03:58
0.94m L
10:12
5.80m H
16:21
0.83m L
22:36
5.67m H
Tue 23rd04:39
0.81m L
10:54
5.95m H
17:05
0.67m L
23:20
5.73m H
Wed 24th05:23
0.76m L
11:38
6.01m H
17:51
0.60m L

Disclaimer

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