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 26th
Sep 2016
00:22
1.70m L
06:50
4.78m H
12:51
1.90m L
19:17
5.03m H
Tue 27th01:33
1.48m L
07:55
4.98m H
13:54
1.68m L
20:12
5.26m H
Wed 28th02:27
1.23m L
08:43
5.17m H
14:42
1.44m L
20:56
5.45m H
Thu 29th03:09
1.04m L
09:21
5.33m H
15:21
1.24m L
21:33
5.59m H
Fri 30th03:45
0.92m L
09:54
5.44m H
15:54
1.10m L
22:06
5.67m H
Sat 1st
Oct 2016
04:18
0.87m L
10:26
5.52m H
16:26
1.03m L
22:39
5.68m H
Sun 2nd04:48
0.88m L
10:57
5.55m H
16:57
1.03m L
23:10
5.64m H
Mon 3rd05:19
0.96m L
11:27
5.52m H
17:27
1.10m L
23:41
5.54m H
Tue 4th05:49
1.10m L
11:58
5.45m H
18:00
1.23m L
Wed 5th00:13
5.40m H
06:21
1.29m L
12:31
5.33m H
18:33
1.41m L
Thu 6th00:46
5.21m H
06:54
1.52m L
13:06
5.18m H
19:11
1.63m L
Fri 7th01:23
4.98m H
07:32
1.79m L
13:45
4.98m H
19:54
1.88m L
Sat 8th02:06
4.73m H
08:18
2.07m L
14:34
4.77m H
20:49
2.12m L
Sun 9th03:04
4.48m H
09:19
2.32m L
15:39
4.59m H
22:01
2.25m L
Mon 10th04:26
4.34m H
10:39
2.41m L
17:03
4.57m H
23:23
2.18m L
Tue 11th05:56
4.44m H
12:00
2.26m L
18:20
4.76m H
Wed 12th00:36
1.88m L
07:06
4.73m H
13:05
1.92m L
19:20
5.08m H
Thu 13th01:33
1.47m L
07:57
5.08m H
13:56
1.51m L
20:09
5.44m H
Fri 14th02:20
1.05m L
08:41
5.43m H
14:40
1.10m L
20:51
5.78m H
Sat 15th03:03
0.67m L
09:21
5.73m H
15:21
0.75m L
21:33
6.06m H
Sun 16th03:44
0.40m L
10:00
5.95m H
16:03
0.50m L
22:15
6.25m H
Mon 17th04:26
0.26m L
10:42
6.08m H
16:46
0.38m L
23:00
6.30m H
Tue 18th05:09
0.28m L
11:25
6.08m H
17:31
0.41m L
23:46
6.19m H
Wed 19th05:54
0.47m L
12:11
5.96m H
18:19
0.59m L
Thu 20th00:36
5.95m H
06:42
0.79m L
12:59
5.73m H
19:12
0.88m L
Fri 21st01:28
5.59m H
07:35
1.21m L
13:52
5.44m H
20:12
1.23m L
Sat 22nd02:28
5.19m H
08:36
1.64m L
14:54
5.13m H
21:21
1.56m L
Sun 23rd03:42
4.85m H
09:48
1.99m L
16:12
4.92m H
22:39
1.75m 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.