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
Tue 28th
Mar 2017
04:43
5.88m H
11:09
0.44m L
17:03
5.83m H
23:29
0.43m L
Wed 29th05:24
6.04m H
11:50
0.31m L
17:44
5.94m H
Thu 30th00:10
0.35m L
06:05
6.06m H
12:30
0.33m L
18:24
5.91m H
Fri 31st00:52
0.41m L
06:46
5.93m H
13:12
0.49m L
19:06
5.76m H
Sat 1st
Apr 2017
01:35
0.61m L
07:30
5.67m H
13:56
0.79m L
19:50
5.49m H
Sun 2nd02:21
0.92m L
08:17
5.31m H
14:43
1.16m L
20:40
5.15m H
Mon 3rd03:15
1.28m L
09:12
4.91m H
15:40
1.54m L
21:41
4.80m H
Tue 4th04:22
1.61m L
10:22
4.56m H
16:54
1.83m L
23:00
4.57m H
Wed 5th05:47
1.77m L
11:50
4.42m H
18:24
1.88m L
Thu 6th00:30
4.58m H
07:14
1.66m L
13:15
4.55m H
19:45
1.68m L
Fri 7th01:46
4.82m H
08:24
1.39m L
14:20
4.84m H
20:47
1.38m L
Sat 8th02:44
5.11m H
09:17
1.12m L
15:10
5.12m H
21:35
1.12m L
Sun 9th03:30
5.36m H
10:00
0.92m L
15:52
5.35m H
22:15
0.94m L
Mon 10th04:10
5.52m H
10:38
0.80m L
16:30
5.49m H
22:52
0.83m L
Tue 11th04:46
5.59m H
11:12
0.76m L
17:03
5.56m H
23:26
0.80m L
Wed 12th05:20
5.59m H
11:45
0.79m L
17:36
5.56m H
23:58
0.83m L
Thu 13th05:51
5.53m H
12:15
0.88m L
18:07
5.49m H
Fri 14th00:30
0.93m L
06:22
5.40m H
12:45
1.03m L
18:38
5.37m H
Sat 15th01:00
1.09m L
06:52
5.22m H
13:15
1.24m L
19:09
5.19m H
Sun 16th01:31
1.29m L
07:23
5.00m H
13:45
1.47m L
19:41
4.96m H
Mon 17th02:05
1.53m L
07:57
4.74m H
14:20
1.73m L
20:18
4.71m H
Tue 18th02:45
1.79m L
08:38
4.46m H
15:03
1.99m L
21:07
4.45m H
Wed 19th03:38
2.03m L
09:35
4.20m H
16:06
2.20m L
22:16
4.25m H
Thu 20th04:54
2.15m L
10:59
4.07m H
17:35
2.25m L
23:45
4.26m H
Fri 21st06:20
2.05m L
12:28
4.21m H
18:57
2.04m L
Sat 22nd01:00
4.50m H
07:30
1.75m L
13:34
4.53m H
20:00
1.69m L
Sun 23rd01:57
4.86m H
08:27
1.37m L
14:26
4.93m H
20:51
1.29m L
Mon 24th02:47
5.26m H
09:15
0.98m L
15:12
5.32m H
21:37
0.92m 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.