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
Mon 25th
Jul 2016
01:32
5.61m H
07:47
0.86m L
14:02
5.19m H
20:07
1.19m L
Tue 26th02:21
5.44m H
08:39
1.04m L
14:56
5.02m H
21:03
1.39m L
Wed 27th03:18
5.23m H
09:39
1.26m L
15:59
4.86m H
22:10
1.57m L
Thu 28th04:24
5.04m H
10:47
1.43m L
17:12
4.79m H
23:24
1.63m L
Fri 29th05:42
4.94m H
12:00
1.50m L
18:30
4.86m H
Sat 30th00:39
1.54m L
06:58
4.98m H
13:10
1.43m L
19:38
5.05m H
Sun 31st01:48
1.32m L
08:06
5.12m H
14:12
1.27m L
20:35
5.29m H
Mon 1st
Aug 2016
02:47
1.06m L
09:01
5.29m H
15:06
1.10m L
21:24
5.52m H
Tue 2nd03:37
0.83m L
09:49
5.42m H
15:51
0.95m L
22:07
5.68m H
Wed 3rd04:22
0.68m L
10:33
5.50m H
16:33
0.86m L
22:48
5.77m H
Thu 4th05:03
0.62m L
11:14
5.50m H
17:12
0.85m L
23:28
5.76m H
Fri 5th05:43
0.67m L
11:52
5.44m H
17:50
0.92m L
Sat 6th00:06
5.67m H
06:21
0.80m L
12:30
5.32m H
18:27
1.07m L
Sun 7th00:42
5.51m H
06:57
0.99m L
13:06
5.16m H
19:03
1.28m L
Mon 8th01:18
5.31m H
07:35
1.23m L
13:42
4.98m H
19:42
1.52m L
Tue 9th01:55
5.08m H
08:14
1.50m L
14:22
4.79m H
20:24
1.79m L
Wed 10th02:37
4.83m H
08:59
1.78m L
15:09
4.60m H
21:15
2.06m L
Thu 11th03:28
4.58m H
09:54
2.03m L
16:09
4.44m H
22:18
2.25m L
Fri 12th04:36
4.39m H
11:01
2.18m L
17:22
4.40m H
23:35
2.30m L
Sat 13th05:55
4.34m H
12:15
2.17m L
18:37
4.51m H
Sun 14th00:49
2.14m L
07:12
4.47m H
13:20
1.99m L
19:39
4.75m H
Mon 15th01:49
1.86m L
08:10
4.70m H
14:12
1.72m L
20:28
5.03m H
Tue 16th02:37
1.52m L
08:55
4.95m H
14:55
1.42m L
21:09
5.31m H
Wed 17th03:18
1.18m L
09:34
5.20m H
15:34
1.13m L
21:47
5.57m H
Thu 18th03:57
0.88m L
10:11
5.42m H
16:12
0.88m L
22:24
5.79m H
Fri 19th04:36
0.63m L
10:49
5.59m H
16:50
0.69m L
23:03
5.95m H
Sat 20th05:15
0.47m L
11:28
5.68m H
17:30
0.61m L
23:44
6.02m H
Sun 21st05:55
0.43m L
12:09
5.68m H
18:12
0.64m 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.