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
Thu 9th
Apr 2020
04:09
0.45m L
08:57
5.54m H
16:38
0.39m L
21:18
5.35m H
Fri 10th04:48
0.43m L
09:39
5.49m H
17:14
0.50m L
22:00
5.26m H
Sat 11th05:24
0.50m L
10:20
5.29m H
17:47
0.70m L
22:41
5.05m H
Sun 12th06:00
0.70m L
11:03
4.93m H
18:22
1.00m L
23:24
4.72m H
Mon 13th06:40
1.01m L
11:48
4.45m H
19:03
1.39m L
Tue 14th00:12
4.31m H
07:31
1.39m L
12:39
3.93m H
20:00
1.79m L
Wed 15th01:09
3.89m H
08:51
1.71m L
13:45
3.48m H
21:45
2.02m L
Thu 16th02:25
3.61m H
10:37
1.73m L
15:20
3.29m H
23:12
1.93m L
Fri 17th03:57
3.62m H
11:48
1.55m L
16:48
3.46m H
Sat 18th00:12
1.72m L
05:08
3.87m H
12:42
1.35m L
17:42
3.78m H
Sun 19th01:00
1.50m L
06:00
4.18m H
13:26
1.19m L
18:25
4.10m H
Mon 20th01:39
1.31m L
06:43
4.46m H
14:02
1.07m L
19:03
4.38m H
Tue 21st02:13
1.15m L
07:21
4.66m H
14:33
0.98m L
19:39
4.57m H
Wed 22nd02:45
1.02m L
07:57
4.77m H
15:03
0.91m L
20:11
4.68m H
Thu 23rd03:17
0.91m L
08:28
4.81m H
15:33
0.87m L
20:42
4.74m H
Fri 24th03:49
0.86m L
08:58
4.80m H
16:03
0.86m L
21:10
4.75m H
Sat 25th04:21
0.86m L
09:27
4.74m H
16:34
0.90m L
21:39
4.71m H
Sun 26th04:54
0.93m L
09:57
4.64m H
17:06
1.01m L
22:10
4.62m H
Mon 27th05:27
1.06m L
10:30
4.47m H
17:37
1.19m L
22:45
4.47m H
Tue 28th06:02
1.24m L
11:09
4.24m H
18:12
1.41m L
23:24
4.25m H
Wed 29th06:43
1.45m L
11:54
3.96m H
18:57
1.66m L
Thu 30th00:14
4.00m H
07:42
1.63m L
12:51
3.68m H
20:05
1.86m L
Fri 1st
May 2020
01:18
3.79m H
09:10
1.66m L
14:10
3.51m H
21:42
1.85m L
Sat 2nd02:41
3.76m H
10:34
1.47m L
15:43
3.66m H
22:59
1.61m L
Sun 3rd04:06
4.00m H
11:39
1.19m L
16:57
4.03m H
Mon 4th00:00
1.32m L
05:15
4.40m H
12:41
0.94m L
17:54
4.45m H
Tue 5th01:01
1.06m L
06:12
4.80m H
13:45
0.74m L
18:44
4.81m H
Wed 6th02:03
0.83m L
07:03
5.11m H
14:41
0.59m L
19:30
5.07m 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.