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 27th
Feb 2017
04:36
0.73m L
10:48
5.82m H
16:58
0.54m L
23:10
5.62m H
Tue 28th05:12
0.58m L
11:26
5.94m H
17:35
0.44m L
23:48
5.68m H
Wed 1st
Mar 2017
05:51
0.53m L
12:05
5.95m H
18:14
0.45m L
Thu 2nd00:27
5.64m H
06:30
0.60m L
12:45
5.87m H
18:55
0.58m L
Fri 3rd01:09
5.50m H
07:15
0.78m L
13:30
5.67m H
19:41
0.83m L
Sat 4th01:54
5.28m H
08:04
1.04m L
14:20
5.38m H
20:33
1.16m L
Sun 5th02:48
5.00m H
09:03
1.36m L
15:20
5.04m H
21:38
1.52m L
Mon 6th03:56
4.74m H
10:18
1.62m L
16:38
4.76m H
22:57
1.77m L
Tue 7th05:24
4.63m H
11:44
1.68m L
18:11
4.69m H
Wed 8th00:22
1.78m L
06:51
4.76m H
13:06
1.50m L
19:31
4.85m H
Thu 9th01:36
1.58m L
07:59
5.04m H
14:12
1.20m L
20:32
5.09m H
Fri 10th02:34
1.29m L
08:51
5.32m H
15:05
0.90m L
21:19
5.30m H
Sat 11th03:21
1.03m L
09:34
5.56m H
15:48
0.67m L
21:59
5.46m H
Sun 12th04:00
0.82m L
10:13
5.71m H
16:27
0.55m L
22:36
5.55m H
Mon 13th04:36
0.70m L
10:51
5.78m H
17:03
0.54m L
23:11
5.57m H
Tue 14th05:11
0.68m L
11:26
5.74m H
17:36
0.62m L
23:45
5.52m H
Wed 15th05:45
0.75m L
12:00
5.63m H
18:10
0.78m L
Thu 16th00:18
5.41m H
06:19
0.91m L
12:34
5.45m H
18:43
1.00m L
Fri 17th00:51
5.25m H
06:54
1.13m L
13:07
5.23m H
19:18
1.27m L
Sat 18th01:25
5.06m H
07:30
1.40m L
13:42
4.97m H
19:55
1.58m L
Sun 19th02:03
4.83m H
08:12
1.70m L
14:24
4.68m H
20:39
1.91m L
Mon 20th02:49
4.58m H
09:03
2.00m L
15:18
4.38m H
21:37
2.22m L
Tue 21st03:52
4.36m H
10:12
2.22m L
16:36
4.17m H
22:56
2.38m L
Wed 22nd05:16
4.28m H
11:38
2.24m L
18:11
4.19m H
Thu 23rd00:21
2.28m L
06:39
4.42m H
12:57
2.01m L
19:27
4.43m H
Fri 24th01:27
1.99m L
07:42
4.71m H
13:54
1.64m L
20:18
4.74m H
Sat 25th02:16
1.61m L
08:28
5.03m H
14:38
1.25m L
20:57
5.05m H
Sun 26th02:57
1.23m L
09:07
5.35m H
15:17
0.88m L
21:33
5.33m H

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.