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 19th
Sep 2019
00:45
5.37m H
06:51
1.29m L
13:04
5.14m H
19:09
1.49m L
Fri 20th01:21
5.18m H
07:28
1.50m L
13:42
4.98m H
19:51
1.72m L
Sat 21st02:04
4.95m H
08:13
1.76m L
14:29
4.78m H
20:45
1.96m L
Sun 22nd03:00
4.70m H
09:13
2.03m L
15:34
4.59m H
22:00
2.13m L
Mon 23rd04:18
4.51m H
10:35
2.19m L
17:03
4.55m H
23:28
2.07m L
Tue 24th05:54
4.56m H
12:02
2.09m L
18:30
4.75m H
Wed 25th00:48
1.75m L
07:12
4.84m H
13:14
1.77m L
19:36
5.12m H
Thu 26th01:51
1.28m L
08:12
5.21m H
14:10
1.36m L
20:27
5.52m H
Fri 27th02:42
0.82m L
09:00
5.55m H
14:58
0.97m L
21:13
5.88m H
Sat 28th03:28
0.44m L
09:42
5.82m H
15:42
0.65m L
21:56
6.15m H
Sun 29th04:12
0.20m L
10:24
5.99m H
16:24
0.44m L
22:39
6.29m H
Mon 30th04:54
0.13m L
11:06
6.03m H
17:06
0.39m L
23:23
6.28m H
Tue 1st
Oct 2019
05:37
0.24m L
11:49
5.94m H
17:50
0.50m L
Wed 2nd00:08
6.10m H
06:21
0.52m L
12:32
5.75m H
18:36
0.75m L
Thu 3rd00:54
5.78m H
07:06
0.92m L
13:17
5.47m H
19:24
1.12m L
Fri 4th01:42
5.36m H
07:54
1.39m L
14:05
5.15m H
20:18
1.54m L
Sat 5th02:36
4.92m H
08:49
1.86m L
15:02
4.84m H
21:23
1.93m L
Sun 6th03:47
4.53m H
10:00
2.25m L
16:16
4.60m H
22:46
2.17m L
Mon 7th05:22
4.34m H
11:25
2.42m L
17:47
4.57m H
Tue 8th00:13
2.15m L
06:52
4.44m H
12:45
2.32m L
19:03
4.73m H
Wed 9th01:24
1.93m L
07:53
4.66m H
13:45
2.08m L
19:57
4.97m H
Thu 10th02:14
1.66m L
08:36
4.89m H
14:28
1.81m L
20:37
5.19m H
Fri 11th02:51
1.42m L
09:09
5.09m H
15:03
1.56m L
21:10
5.39m H
Sat 12th03:24
1.22m L
09:37
5.26m H
15:34
1.35m L
21:41
5.54m H
Sun 13th03:52
1.07m L
10:04
5.38m H
16:03
1.19m L
22:10
5.63m H
Mon 14th04:20
0.99m L
10:31
5.47m H
16:31
1.10m L
22:41
5.67m H
Tue 15th04:48
0.97m L
11:00
5.51m H
17:01
1.08m L
23:12
5.65m H
Wed 16th05:18
1.02m L
11:30
5.51m H
17:33
1.13m L
23:45
5.57m 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.