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 28th
Oct 2021
00:03
3.71m H
07:03
2.16m L
12:24
3.82m H
20:00
2.17m L
Fri 29th01:00
3.42m H
08:15
2.34m L
13:27
3.62m H
21:52
2.11m L
Sat 30th02:29
3.30m H
10:13
2.25m L
15:04
3.65m H
23:03
1.83m L
Sun 31st04:26
3.57m H
11:17
1.95m L
16:33
3.98m H
23:54
1.52m L
Mon 1st
Nov 2021
05:16
4.00m H
12:08
1.63m L
17:26
4.42m H
Tue 2nd00:44
1.25m L
05:58
4.45m H
12:57
1.35m L
18:12
4.85m H
Wed 3rd01:35
1.04m L
06:41
4.85m H
13:49
1.13m L
18:56
5.21m H
Thu 4th02:27
0.89m L
07:23
5.17m H
14:41
0.96m L
19:39
5.45m H
Fri 5th03:14
0.81m L
08:04
5.36m H
15:28
0.86m L
20:23
5.56m H
Sat 6th03:57
0.81m L
08:46
5.43m H
16:11
0.83m L
21:06
5.52m H
Sun 7th04:36
0.88m L
09:29
5.39m H
16:51
0.88m L
21:50
5.34m H
Mon 8th05:12
1.04m L
10:13
5.23m H
17:33
1.01m L
22:36
5.02m H
Tue 9th05:51
1.27m L
11:01
4.97m H
18:21
1.22m L
23:27
4.60m H
Wed 10th06:40
1.57m L
11:54
4.63m H
19:22
1.48m L
Thu 11th00:25
4.14m H
07:46
1.88m L
12:58
4.30m H
20:45
1.65m L
Fri 12th01:38
3.78m H
09:20
2.01m L
14:15
4.12m H
22:12
1.61m L
Sat 13th03:04
3.68m H
10:41
1.91m L
15:33
4.14m H
23:20
1.46m L
Sun 14th04:21
3.84m H
11:42
1.72m L
16:41
4.33m H
Mon 15th00:16
1.31m L
05:18
4.11m H
12:35
1.53m L
17:36
4.58m H
Tue 16th01:05
1.21m L
06:06
4.41m H
13:21
1.39m L
18:24
4.79m H
Wed 17th01:45
1.16m L
06:47
4.65m H
14:00
1.29m L
19:05
4.92m H
Thu 18th02:18
1.16m L
07:24
4.81m H
14:33
1.24m L
19:42
4.96m H
Fri 19th02:45
1.16m L
08:00
4.89m H
15:03
1.21m L
20:17
4.93m H
Sat 20th03:12
1.16m L
08:32
4.91m H
15:33
1.20m L
20:48
4.85m H
Sun 21st03:41
1.18m L
09:02
4.88m H
16:06
1.23m L
21:19
4.74m H
Mon 22nd04:13
1.25m L
09:33
4.80m H
16:39
1.32m L
21:51
4.58m H
Tue 23rd04:46
1.38m L
10:04
4.67m H
17:15
1.46m L
22:24
4.38m H
Wed 24th05:21
1.56m L
10:38
4.51m H
17:54
1.63m L
23:01
4.15m H

Disclaimer

While every effort has been made to ensure the accuracy of the information provided, no responsibility can be accepted by the National Oceanographiy Centre for any consequential loss or damage arising from its use.