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
Tue 6th
Dec 2016
02:15
4.83m H
08:20
1.92m L
14:36
5.08m H
20:57
1.72m L
Wed 7th03:15
4.71m H
09:22
2.04m L
15:38
4.98m H
22:02
1.74m L
Thu 8th04:27
4.68m H
10:33
2.05m L
16:48
4.98m H
23:12
1.64m L
Fri 9th05:42
4.80m H
11:45
1.90m L
17:59
5.11m H
Sat 10th00:18
1.44m L
06:47
5.03m H
12:48
1.62m L
19:02
5.34m H
Sun 11th01:17
1.17m L
07:43
5.32m H
13:45
1.29m L
19:59
5.59m H
Mon 12th02:11
0.92m L
08:33
5.59m H
14:37
0.97m L
20:51
5.81m H
Tue 13th03:00
0.71m L
09:21
5.83m H
15:27
0.71m L
21:42
5.96m H
Wed 14th03:48
0.60m L
10:07
6.00m H
16:17
0.54m L
22:31
6.02m H
Thu 15th04:36
0.58m L
10:54
6.08m H
17:06
0.48m L
23:21
5.96m H
Fri 16th05:24
0.68m L
11:41
6.05m H
17:56
0.55m L
Sat 17th00:10
5.79m H
06:11
0.87m L
12:29
5.92m H
18:46
0.73m L
Sun 18th01:00
5.54m H
07:00
1.14m L
13:17
5.70m H
19:38
0.99m L
Mon 19th01:51
5.25m H
07:50
1.45m L
14:07
5.43m H
20:31
1.30m L
Tue 20th02:45
4.95m H
08:43
1.77m L
15:01
5.14m H
21:28
1.59m L
Wed 21st03:45
4.71m H
09:43
2.05m L
16:02
4.89m H
22:31
1.81m L
Thu 22nd04:51
4.56m H
10:51
2.22m L
17:10
4.73m H
23:37
1.92m L
Fri 23rd06:00
4.55m H
12:00
2.25m L
18:20
4.69m H
Sat 24th00:39
1.90m L
07:03
4.67m H
13:03
2.14m L
19:21
4.77m H
Sun 25th01:34
1.80m L
07:54
4.85m H
13:56
1.95m L
20:12
4.91m H
Mon 26th02:20
1.66m L
08:36
5.06m H
14:40
1.74m L
20:54
5.05m H
Tue 27th03:00
1.51m L
09:13
5.25m H
15:18
1.54m L
21:31
5.17m H
Wed 28th03:35
1.38m L
09:48
5.41m H
15:54
1.37m L
22:06
5.27m H
Thu 29th04:08
1.28m L
10:21
5.53m H
16:28
1.24m L
22:40
5.33m H
Fri 30th04:42
1.22m L
10:54
5.62m H
17:03
1.15m L
23:15
5.35m H
Sat 31st05:15
1.19m L
11:29
5.65m H
17:39
1.11m L
23:50
5.34m H
Sun 1st
Jan 2017
05:51
1.20m L
12:06
5.64m H
18:16
1.12m L
Mon 2nd00:28
5.28m H
06:29
1.27m L
12:45
5.57m H
18:56
1.17m 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.