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
Thu 27th
Apr 2017
05:00
6.05m H
11:27
0.31m L
17:21
6.02m H
23:50
0.31m L
Fri 28th05:45
6.06m H
12:10
0.34m L
18:06
6.00m H
Sat 29th00:35
0.37m L
06:30
5.92m H
12:55
0.51m L
18:50
5.84m H
Sun 30th01:22
0.57m L
07:16
5.65m H
13:42
0.80m L
19:37
5.57m H
Mon 1st
May 2017
02:11
0.87m L
08:06
5.29m H
14:32
1.16m L
20:29
5.24m H
Tue 2nd03:06
1.22m L
09:02
4.91m H
15:29
1.52m L
21:30
4.92m H
Wed 3rd04:12
1.53m L
10:09
4.60m H
16:39
1.78m L
22:42
4.69m H
Thu 4th05:29
1.70m L
11:28
4.46m H
18:00
1.85m L
Fri 5th00:03
4.64m H
06:48
1.66m L
12:47
4.54m H
19:17
1.73m L
Sat 6th01:17
4.77m H
07:55
1.49m L
13:51
4.75m H
20:18
1.52m L
Sun 7th02:15
4.97m H
08:48
1.29m L
14:42
4.99m H
21:07
1.31m L
Mon 8th03:02
5.16m H
09:32
1.14m L
15:24
5.18m H
21:48
1.16m L
Tue 9th03:42
5.28m H
10:09
1.05m L
16:02
5.33m H
22:25
1.06m L
Wed 10th04:19
5.36m H
10:44
1.00m L
16:37
5.41m H
22:59
1.01m L
Thu 11th04:53
5.38m H
11:16
0.99m L
17:10
5.45m H
23:32
1.00m L
Fri 12th05:25
5.36m H
11:48
1.04m L
17:42
5.43m H
Sat 13th00:04
1.05m L
05:57
5.28m H
12:19
1.13m L
18:13
5.35m H
Sun 14th00:36
1.14m L
06:27
5.16m H
12:51
1.26m L
18:45
5.23m H
Mon 15th01:09
1.28m L
07:00
5.00m H
13:23
1.44m L
19:19
5.06m H
Tue 16th01:44
1.45m L
07:35
4.80m H
13:58
1.63m L
19:57
4.87m H
Wed 17th02:24
1.64m L
08:15
4.59m H
14:41
1.83m L
20:42
4.66m H
Thu 18th03:13
1.82m L
09:07
4.39m H
15:36
2.00m L
21:42
4.50m H
Fri 19th04:16
1.93m L
10:15
4.28m H
16:48
2.06m L
22:54
4.46m H
Sat 20th05:30
1.89m L
11:35
4.34m H
18:06
1.95m L
Sun 21st00:09
4.60m H
06:42
1.68m L
12:45
4.58m H
19:15
1.68m L
Mon 22nd01:13
4.88m H
07:44
1.37m L
13:45
4.92m H
20:13
1.34m L
Tue 23rd02:09
5.21m H
08:39
1.04m L
14:38
5.28m H
21:06
0.99m L
Wed 24th03:01
5.54m H
09:29
0.75m L
15:27
5.61m H
21:55
0.69m L

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.