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 23rd
Feb 2018
03:33
1.57m L
09:33
4.82m H
16:03
1.65m L
22:04
4.63m H
Sat 24th04:40
1.78m L
10:44
4.58m H
17:19
1.82m L
23:24
4.51m H
Sun 25th06:07
1.83m L
12:12
4.52m H
18:46
1.78m L
Mon 26th00:54
4.62m H
07:33
1.62m L
13:36
4.72m H
20:06
1.52m L
Tue 27th02:11
4.96m H
08:45
1.25m L
14:45
5.06m H
21:11
1.16m L
Wed 28th03:12
5.36m H
09:45
0.85m L
15:41
5.42m H
22:05
0.80m L
Thu 1st
Mar 2018
04:04
5.72m H
10:35
0.53m L
16:30
5.69m H
22:53
0.54m L
Fri 2nd04:50
5.97m H
11:20
0.34m L
17:13
5.86m H
23:36
0.39m L
Sat 3rd05:33
6.07m H
12:03
0.29m L
17:54
5.89m H
Sun 4th00:18
0.38m L
06:13
6.03m H
12:42
0.39m L
18:33
5.79m H
Mon 5th00:57
0.51m L
06:51
5.85m H
13:21
0.61m L
19:10
5.58m H
Tue 6th01:35
0.76m L
07:28
5.56m H
13:57
0.94m L
19:46
5.30m H
Wed 7th02:11
1.09m L
08:04
5.21m H
14:32
1.31m L
20:24
4.98m H
Thu 8th02:48
1.45m L
08:42
4.83m H
15:10
1.68m L
21:06
4.64m H
Fri 9th03:30
1.82m L
09:28
4.45m H
15:57
2.03m L
22:00
4.33m H
Sat 10th04:27
2.13m L
10:33
4.13m H
17:07
2.28m L
23:20
4.13m H
Sun 11th05:53
2.29m L
12:06
4.01m H
18:41
2.31m L
Mon 12th00:51
4.18m H
07:23
2.18m L
13:32
4.16m H
19:59
2.10m L
Tue 13th02:00
4.43m H
08:30
1.90m L
14:31
4.44m H
20:54
1.79m L
Wed 14th02:51
4.75m H
09:18
1.58m L
15:15
4.75m H
21:36
1.48m L
Thu 15th03:31
5.05m H
09:57
1.28m L
15:51
5.02m H
22:13
1.21m L
Fri 16th04:07
5.31m H
10:32
1.02m L
16:25
5.26m H
22:47
0.98m L
Sat 17th04:41
5.52m H
11:05
0.82m L
16:57
5.45m H
23:21
0.81m L
Sun 18th05:14
5.67m H
11:38
0.68m L
17:30
5.58m H
23:54
0.69m L
Mon 19th05:48
5.76m H
12:12
0.62m L
18:05
5.63m H
Tue 20th00:29
0.67m L
06:23
5.75m H
12:48
0.66m L
18:39
5.60m H
Wed 21st01:05
0.74m L
07:00
5.64m H
13:24
0.79m L
19:16
5.47m H
Thu 22nd01:43
0.91m L
07:38
5.43m H
14:03
1.02m L
19:56
5.25m 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.