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
Jan 2015
02:16
5.31m H
08:22
1.11m L
14:37
5.55m H
20:57
1.11m L
Tue 27th03:12
5.01m H
09:21
1.44m L
15:37
5.19m H
21:59
1.47m L
Wed 28th04:20
4.77m H
10:32
1.72m L
16:49
4.89m H
23:11
1.74m L
Thu 29th05:39
4.66m H
11:50
1.85m L
18:12
4.74m H
Fri 30th00:27
1.83m L
06:58
4.73m H
13:07
1.79m L
19:28
4.78m H
Sat 31st01:36
1.75m L
08:03
4.92m H
14:12
1.59m L
20:28
4.91m H
Sun 1st
Feb 2015
02:33
1.58m L
08:52
5.14m H
15:03
1.37m L
21:15
5.07m H
Mon 2nd03:17
1.40m L
09:33
5.33m H
15:45
1.17m L
21:54
5.20m H
Tue 3rd03:54
1.23m L
10:09
5.48m H
16:21
1.03m L
22:28
5.30m H
Wed 4th04:27
1.11m L
10:42
5.57m H
16:54
0.95m L
23:00
5.36m H
Thu 5th04:58
1.04m L
11:13
5.61m H
17:25
0.92m L
23:31
5.37m H
Fri 6th05:29
1.03m L
11:44
5.60m H
17:56
0.96m L
Sat 7th00:02
5.34m H
06:00
1.07m L
12:15
5.53m H
18:27
1.04m L
Sun 8th00:33
5.26m H
06:32
1.18m L
12:47
5.42m H
19:00
1.18m L
Mon 9th01:07
5.15m H
07:06
1.33m L
13:20
5.26m H
19:34
1.36m L
Tue 10th01:42
4.99m H
07:42
1.53m L
13:57
5.07m H
20:12
1.58m L
Wed 11th02:24
4.81m H
08:27
1.76m L
14:40
4.84m H
21:00
1.80m L
Thu 12th03:14
4.62m H
09:22
1.98m L
15:36
4.61m H
22:03
2.00m L
Fri 13th04:22
4.48m H
10:35
2.11m L
16:55
4.46m H
23:21
2.05m L
Sat 14th05:45
4.50m H
11:57
2.04m L
18:23
4.52m H
Sun 15th00:39
1.89m L
07:02
4.72m H
13:10
1.74m L
19:36
4.78m H
Mon 16th01:43
1.57m L
08:03
5.06m H
14:11
1.32m L
20:33
5.12m H
Tue 17th02:36
1.17m L
08:52
5.44m H
15:03
0.87m L
21:21
5.45m H
Wed 18th03:24
0.79m L
09:37
5.81m H
15:49
0.47m L
22:06
5.73m H
Thu 19th04:08
0.47m L
10:21
6.10m H
16:33
0.18m L
22:49
5.91m H
Fri 20th04:51
0.27m L
11:05
6.28m H
17:18
0.05m L
23:33
5.97m H
Sat 21st05:36
0.21m L
11:50
6.30m H
18:03
0.09m L
Sun 22nd00:17
5.89m H
06:21
0.30m L
12:36
6.17m H
18:48
0.30m 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.