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
Sat 27th
Jul 202402:58
0.97m L08:53
5.07m H15:19
1.19m L21:18
5.20m H
Jul 202402:58
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
Mon 12th03:08
1.82m L09:03
4.46m H15:26
1.95m L21:23
4.42m H
1.82m L09:03
4.46m H15:26
1.95m L21:23
4.42m H
Tue 13th03:54
2.06m L09:54
4.26m H16:23
2.18m L22:21
4.18m H
2.06m L09:54
4.26m H16:23
2.18m L22:21
4.18m H
Wed 14th05:00
2.25m L11:08
4.12m H17:45
2.29m L23:46
4.06m H
2.25m L11:08
4.12m H17:45
2.29m L23:46
4.06m H
Thu 15th06:29
2.26m L12:39
4.20m H19:13
2.16m L
2.26m L12:39
4.20m H19:13
2.16m L
Fri 16th01:17
4.20m H07:49
2.05m L13:54
4.49m H20:25
1.83m L
4.20m H07:49
2.05m L13:54
4.49m H20:25
1.83m L
Sat 17th02:26
4.51m H08:51
1.70m L14:52
4.89m H21:22
1.41m L
4.51m H08:51
1.70m L14:52
4.89m H21:22
1.41m L
Sun 18th03:20
4.89m H09:44
1.32m L15:42
5.30m H22:11
1.00m L
4.89m H09:44
1.32m L15:42
5.30m H22:11
1.00m L
Mon 19th04:08
5.26m H10:30
0.96m L16:27
5.67m H22:56
0.65m L
5.26m H10:30
0.96m L16:27
5.67m H22:56
0.65m L
Tue 20th04:52
5.55m H11:15
0.67m L17:12
5.94m H23:40
0.41m L
5.55m H11:15
0.67m L17:12
5.94m H23:40
0.41m L
Wed 21st05:35
5.74m H11:58
0.49m L17:54
6.08m H
5.74m H11:58
0.49m L17:54
6.08m H
Thu 22nd00:23
0.31m L06:17
5.80m H12:41
0.44m L18:37
6.07m H
0.31m L06:17
5.80m H12:41
0.44m L18:37
6.07m H
Fri 23rd01:05
0.37m L06:58
5.72m H13:23
0.55m L19:19
5.89m H
0.37m L06:58
5.72m H13:23
0.55m L19:19
5.89m 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.