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
Fri 27th
May 2016
01:21
5.21m H
07:33
1.29m L
13:48
4.87m H
19:52
1.58m L
Sat 28th02:08
5.07m H
08:25
1.40m L
14:42
4.73m H
20:50
1.73m L
Sun 29th03:04
4.94m H
09:27
1.47m L
15:48
4.64m H
21:57
1.81m L
Mon 30th04:11
4.88m H
10:35
1.46m L
17:02
4.67m H
23:09
1.75m L
Tue 31st05:22
4.94m H
11:43
1.32m L
18:13
4.82m H
Wed 1st
Jun 2016
00:16
1.55m L
06:30
5.10m H
12:47
1.10m L
19:15
5.06m H
Thu 2nd01:17
1.26m L
07:30
5.33m H
13:44
0.87m L
20:09
5.32m H
Fri 3rd02:12
0.96m L
08:25
5.55m H
14:36
0.66m L
20:57
5.56m H
Sat 4th03:03
0.68m L
09:17
5.73m H
15:25
0.52m L
21:45
5.74m H
Sun 5th03:52
0.48m L
10:07
5.83m H
16:13
0.48m L
22:31
5.85m H
Mon 6th04:42
0.39m L
10:57
5.82m H
17:00
0.54m L
23:18
5.87m H
Tue 7th05:30
0.41m L
11:45
5.71m H
17:48
0.69m L
Wed 8th00:05
5.79m H
06:20
0.55m L
12:34
5.50m H
18:35
0.92m L
Thu 9th00:51
5.62m H
07:09
0.77m L
13:24
5.25m H
19:23
1.21m L
Fri 10th01:39
5.39m H
08:00
1.04m L
14:15
4.97m H
20:12
1.51m L
Sat 11th02:30
5.12m H
08:54
1.33m L
15:09
4.71m H
21:07
1.80m L
Sun 12th03:24
4.87m H
09:51
1.58m L
16:08
4.52m H
22:09
2.02m L
Mon 13th04:24
4.67m H
10:54
1.75m L
17:14
4.43m H
23:15
2.13m L
Tue 14th05:31
4.57m H
11:57
1.80m L
18:19
4.47m H
Wed 15th00:21
2.09m L
06:37
4.58m H
12:56
1.74m L
19:17
4.61m H
Thu 16th01:18
1.95m L
07:33
4.69m H
13:46
1.63m L
20:04
4.80m H
Fri 17th02:06
1.75m L
08:21
4.83m H
14:29
1.49m L
20:45
4.99m H
Sat 18th02:48
1.55m L
09:02
4.96m H
15:07
1.35m L
21:21
5.16m H
Sun 19th03:26
1.36m L
09:39
5.08m H
15:42
1.24m L
21:56
5.31m H
Mon 20th04:02
1.20m L
10:15
5.17m H
16:18
1.15m L
22:30
5.43m H
Tue 21st04:38
1.07m L
10:51
5.23m H
16:53
1.09m L
23:06
5.50m H
Wed 22nd05:15
0.99m L
11:28
5.25m H
17:30
1.08m L
23:44
5.53m H
Thu 23rd05:54
0.96m L
12:07
5.23m H
18:08
1.11m 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.