High and low water times and heights at St. Mary's

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
Fri 9th
Jun 2023
02:34
1.14m L
08:30
4.90m H
14:57
1.41m L
20:58
5.13m H
Sat 10th03:33
1.30m L
09:32
4.71m H
16:00
1.55m L
22:01
4.97m H
Sun 11th04:37
1.43m L
10:39
4.60m H
17:07
1.62m L
23:09
4.88m H
Mon 12th05:45
1.48m L
11:48
4.60m H
18:16
1.61m L
Tue 13th00:16
4.87m H
06:51
1.46m L
12:53
4.69m H
19:21
1.52m L
Wed 14th01:19
4.92m H
07:50
1.40m L
13:51
4.83m H
20:18
1.41m L
Thu 15th02:15
5.00m H
08:43
1.33m L
14:43
4.99m H
21:11
1.31m L
Fri 16th03:06
5.07m H
09:30
1.27m L
15:30
5.12m H
21:57
1.24m L
Sat 17th03:51
5.11m H
10:14
1.24m L
16:12
5.22m H
22:41
1.19m L
Sun 18th04:34
5.12m H
10:54
1.24m L
16:53
5.27m H
23:22
1.19m L
Mon 19th05:14
5.10m H
11:33
1.27m L
17:31
5.26m H
Tue 20th00:01
1.22m L
05:52
5.04m H
12:10
1.33m L
18:09
5.21m H
Wed 21st00:39
1.29m L
06:29
4.94m H
12:46
1.42m L
18:45
5.11m H
Thu 22nd01:15
1.39m L
07:06
4.82m H
13:22
1.52m L
19:21
4.99m H
Fri 23rd01:51
1.51m L
07:42
4.68m H
13:59
1.65m L
20:00
4.84m H
Sat 24th02:30
1.64m L
08:23
4.53m H
14:39
1.77m L
20:41
4.69m H
Sun 25th03:12
1.77m L
09:07
4.39m H
15:25
1.90m L
21:28
4.54m H
Mon 26th04:02
1.88m L
10:00
4.28m H
16:19
2.00m L
22:22
4.43m H
Tue 27th04:58
1.95m L
11:00
4.25m H
17:21
2.03m L
23:24
4.40m H
Wed 28th06:01
1.92m L
12:03
4.32m H
18:27
1.96m L
Thu 29th00:27
4.47m H
07:03
1.81m L
13:04
4.50m H
19:29
1.80m L
Fri 30th01:28
4.64m H
08:00
1.63m L
14:00
4.76m H
20:27
1.57m L
Sat 1st
Jul 2023
02:24
4.85m H
08:54
1.42m L
14:53
5.03m H
21:20
1.31m L
Sun 2nd03:17
5.07m H
09:45
1.21m L
15:43
5.30m H
22:12
1.06m L
Mon 3rd04:08
5.26m H
10:34
1.03m L
16:33
5.52m H
23:03
0.85m L
Tue 4th04:59
5.40m H
11:24
0.89m L
17:22
5.68m H
23:53
0.70m L
Wed 5th05:49
5.46m H
12:14
0.82m L
18:12
5.75m H
Thu 6th00:43
0.64m L
06:39
5.44m H
13:03
0.83m L
19:01
5.72m H

Disclaimer

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

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