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)
![UK & Ireland](../sites/ntslf/files/images/ntgnet_rt3.gif)
© National Oceanography Centre, Liverpool
Mon 15th
Jul 202405:00
2.04m L11:04
4.20m H17:27
2.14m L23:30
4.24m H
Jul 202405:00
2.04m L11:04
4.20m H17:27
2.14m L23:30
4.24m H
Tue 16th06:07
2.10m L12:14
4.21m H18:39
2.13m L
2.10m L12:14
4.21m H18:39
2.13m L
Wed 17th00:41
4.25m H07:15
2.03m L13:21
4.36m H19:46
1.99m L
4.25m H07:15
2.03m L13:21
4.36m H19:46
1.99m L
Thu 18th01:47
4.39m H08:16
1.86m L14:18
4.60m H20:46
1.74m L
4.39m H08:16
1.86m L14:18
4.60m H20:46
1.74m L
Fri 19th02:43
4.61m H09:10
1.62m L15:10
4.89m H21:39
1.45m L
4.61m H09:10
1.62m L15:10
4.89m H21:39
1.45m L
Sat 20th03:34
4.87m H10:00
1.37m L15:57
5.19m H22:27
1.17m L
4.87m H10:00
1.37m L15:57
5.19m H22:27
1.17m L
Sun 21st04:21
5.11m H10:45
1.13m L16:43
5.45m H23:12
0.91m L
5.11m H10:45
1.13m L16:43
5.45m H23:12
0.91m L
Mon 22nd05:08
5.31m H11:31
0.93m L17:29
5.65m H23:58
0.71m L
5.31m H11:31
0.93m L17:29
5.65m H23:58
0.71m L
Tue 23rd05:53
5.44m H12:16
0.79m L18:14
5.77m H
5.44m H12:16
0.79m L18:14
5.77m H
Wed 24th00:42
0.60m L06:37
5.48m H13:01
0.74m L18:58
5.78m H
0.60m L06:37
5.48m H13:01
0.74m L18:58
5.78m H
Thu 25th01:27
0.61m L07:21
5.42m H13:45
0.79m L19:43
5.68m H
0.61m L07:21
5.42m H13:45
0.79m L19:43
5.68m H
Fri 26th02:12
0.74m L08:06
5.28m H14:31
0.95m L20:29
5.48m H
0.74m L08:06
5.28m H14:31
0.95m L20:29
5.48m H
Sat 27th02:58
0.97m L08:53
5.07m H15:19
1.19m L21:18
5.20m H
0.97m L08:53
5.07m H15:19
1.19m L21:18
5.20m H
Sun 28th03:47
1.26m L09:44
4.82m H16:12
1.47m L22:13
4.88m H
1.26m L09:44
4.82m H16:12
1.47m L22:13
4.88m H
Mon 29th04:44
1.57m L10:45
4.60m H17:18
1.72m L23:19
4.61m H
1.57m L10:45
4.60m H17:18
1.72m L23:19
4.61m H
Tue 30th05:52
1.80m L11:58
4.47m H18:36
1.85m L
1.80m L11:58
4.47m H18:36
1.85m L
Wed 31st00:38
4.46m H07:10
1.88m L13:18
4.52m H19:56
1.79m L
4.46m H07:10
1.88m L13:18
4.52m H19:56
1.79m L
Thu 1st
Aug 202401:56
4.51m H08:24
1.79m L14:30
4.71m H21:05
1.61m L
Aug 202401:56
4.51m H08:24
1.79m L14:30
4.71m H21:05
1.61m L
Fri 2nd03:01
4.67m H09:25
1.60m L15:26
4.96m H22:00
1.38m L
4.67m H09:25
1.60m L15:26
4.96m H22:00
1.38m L
Sat 3rd03:53
4.87m H10:15
1.40m L16:13
5.18m H22:45
1.19m L
4.87m H10:15
1.40m L16:13
5.18m H22:45
1.19m L
Sun 4th04:36
5.04m H10:57
1.24m L16:53
5.33m H23:24
1.07m L
5.04m H10:57
1.24m L16:53
5.33m H23:24
1.07m L
Mon 5th05:14
5.14m H11:33
1.14m L17:30
5.41m H23:59
1.02m L
5.14m H11:33
1.14m L17:30
5.41m H23:59
1.02m L
Tue 6th05:48
5.19m H12:08
1.10m L18:03
5.42m H
5.19m H12:08
1.10m L18:03
5.42m H
Wed 7th00:32
1.02m L06:21
5.17m H12:39
1.12m L18:35
5.37m H
1.02m L06:21
5.17m H12:39
1.12m L18:35
5.37m H
Thu 8th01:03
1.09m L06:52
5.11m H13:10
1.18m L19:06
5.26m H
1.09m L06:52
5.11m H13:10
1.18m L19:06
5.26m H
Fri 9th01:32
1.21m L07:22
5.00m H13:40
1.31m L19:36
5.11m H
1.21m L07:22
5.00m H13:40
1.31m L19:36
5.11m H
Sat 10th02:02
1.37m L07:52
4.86m H14:11
1.48m L20:06
4.91m H
1.37m L07:52
4.86m H14:11
1.48m L20:06
4.91m H
Sun 11th02:33
1.58m L08:25
4.67m H14:45
1.70m L20:41
4.68m H
1.58m L08:25
4.67m H14:45
1.70m L20:41
4.68m 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.