High and low water times and heights at Barmouth

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 17th
Jul 2018
06:29
0.62m L
11:13
4.82m H
18:36
0.90m L
23:34
5.05m H
Wed 18th07:14
0.79m L
12:02
4.55m H
19:21
1.10m L
Thu 19th00:24
4.76m H
08:02
1.03m L
12:53
4.24m H
20:12
1.36m L
Fri 20th01:15
4.41m H
08:57
1.30m L
13:48
3.96m H
21:13
1.59m L
Sat 21st02:13
4.08m H
10:02
1.49m L
14:52
3.76m H
22:26
1.71m L
Sun 22nd03:19
3.85m H
11:10
1.56m L
16:03
3.74m H
23:36
1.69m L
Mon 23rd04:33
3.80m H
12:10
1.53m L
17:12
3.88m H
Tue 24th00:34
1.57m L
05:39
3.91m H
13:00
1.45m L
18:09
4.12m H
Wed 25th01:24
1.44m L
06:32
4.09m H
13:41
1.36m L
18:56
4.37m H
Thu 26th02:06
1.31m L
07:16
4.26m H
14:17
1.27m L
19:38
4.57m H
Fri 27th02:44
1.20m L
07:55
4.40m H
14:52
1.18m L
20:15
4.71m H
Sat 28th03:21
1.11m L
08:31
4.49m H
15:28
1.11m L
20:51
4.78m H
Sun 29th03:57
1.04m L
09:05
4.54m H
16:05
1.08m L
21:24
4.80m H
Mon 30th04:32
1.02m L
09:37
4.54m H
16:40
1.08m L
21:57
4.78m H
Tue 31st05:06
1.02m L
10:09
4.50m H
17:15
1.12m L
22:28
4.72m H
Wed 1st
Aug 2018
05:40
1.06m L
10:43
4.42m H
17:51
1.21m L
23:02
4.62m H
Thu 2nd06:15
1.14m L
11:18
4.31m H
18:27
1.33m L
23:39
4.49m H
Fri 3rd06:54
1.26m L
11:58
4.16m H
19:09
1.49m L
Sat 4th00:21
4.31m H
07:39
1.41m L
12:44
3.99m H
20:01
1.67m L
Sun 5th01:10
4.11m H
08:36
1.56m L
13:39
3.84m H
21:12
1.77m L
Mon 6th02:12
3.95m H
09:53
1.62m L
14:48
3.78m H
22:39
1.70m L
Tue 7th03:29
3.92m H
11:13
1.51m L
16:10
3.92m H
23:51
1.47m L
Wed 8th04:52
4.10m H
12:17
1.30m L
17:26
4.25m H
Thu 9th00:54
1.19m L
06:01
4.43m H
13:17
1.10m L
18:28
4.65m H
Fri 10th01:57
0.94m L
06:59
4.76m H
14:18
0.92m L
19:22
5.01m H
Sat 11th03:01
0.71m L
07:51
5.02m H
15:18
0.77m L
20:12
5.28m H
Sun 12th03:57
0.54m L
08:39
5.16m H
16:11
0.67m L
21:00
5.44m H
Mon 13th04:46
0.44m L
09:24
5.20m H
16:57
0.63m L
21:45
5.48m 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.