High and low water times and heights at Mumbles
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)

© National Oceanography Centre, Liverpool
Sat 23rd
Jan 202101:16
6.95m H07:35
3.60m L13:58
7.11m H20:12
3.40m L
Jan 202101:16
6.95m H07:35
3.60m L13:58
7.11m H20:12
3.40m L
Sun 24th02:34
7.09m H08:52
3.40m L15:12
7.34m H21:21
3.11m L
7.09m H08:52
3.40m L15:12
7.34m H21:21
3.11m L
Mon 25th03:43
7.51m H09:54
2.99m L16:12
7.76m H22:18
2.68m L
7.51m H09:54
2.99m L16:12
7.76m H22:18
2.68m L
Tue 26th04:36
8.03m H10:45
2.53m L17:02
8.22m H23:04
2.24m L
8.03m H10:45
2.53m L17:02
8.22m H23:04
2.24m L
Wed 27th05:21
8.51m H11:28
2.11m L17:45
8.63m H23:45
1.86m L
8.51m H11:28
2.11m L17:45
8.63m H23:45
1.86m L
Thu 28th06:01
8.91m H12:08
1.75m L18:24
8.95m H
8.91m H12:08
1.75m L18:24
8.95m H
Fri 29th00:23
1.54m L06:39
9.23m H12:45
1.46m L19:02
9.21m H
1.54m L06:39
9.23m H12:45
1.46m L19:02
9.21m H
Sat 30th01:01
1.28m L07:17
9.47m H13:24
1.23m L19:41
9.37m H
1.28m L07:17
9.47m H13:24
1.23m L19:41
9.37m H
Sun 31st01:40
1.12m L07:56
9.61m H14:03
1.11m L20:20
9.42m H
1.12m L07:56
9.61m H14:03
1.11m L20:20
9.42m H
Mon 1st
Feb 202102:20
1.08m L08:36
9.61m H14:44
1.14m L21:00
9.31m H
Feb 202102:20
1.08m L08:36
9.61m H14:44
1.14m L21:00
9.31m H
Tue 2nd03:00
1.21m L09:18
9.45m H15:24
1.34m L21:42
9.03m H
1.21m L09:18
9.45m H15:24
1.34m L21:42
9.03m H
Wed 3rd03:40
1.49m L10:01
9.13m H16:05
1.69m L22:26
8.63m H
1.49m L10:01
9.13m H16:05
1.69m L22:26
8.63m H
Thu 4th04:24
1.88m L10:48
8.68m H16:51
2.13m L23:16
8.17m H
1.88m L10:48
8.68m H16:51
2.13m L23:16
8.17m H
Fri 5th05:16
2.34m L11:42
8.19m H17:50
2.60m L
2.34m L11:42
8.19m H17:50
2.60m L
Sat 6th00:18
7.75m H06:27
2.75m L12:52
7.76m H19:09
2.94m L
7.75m H06:27
2.75m L12:52
7.76m H19:09
2.94m L
Sun 7th01:37
7.55m H07:54
2.90m L14:19
7.63m H20:41
2.92m L
7.55m H07:54
2.90m L14:19
7.63m H20:41
2.92m L
Mon 8th03:05
7.75m H09:20
2.67m L15:42
7.90m H22:00
2.54m L
7.75m H09:20
2.67m L15:42
7.90m H22:00
2.54m L
Tue 9th04:17
8.25m H10:30
2.20m L16:48
8.37m H23:01
2.05m L
8.25m H10:30
2.20m L16:48
8.37m H23:01
2.05m L
Wed 10th05:14
8.79m H11:25
1.74m L17:41
8.80m H23:49
1.64m L
8.79m H11:25
1.74m L17:41
8.80m H23:49
1.64m L
Thu 11th06:02
9.21m H12:12
1.40m L18:26
9.10m H
9.21m H12:12
1.40m L18:26
9.10m H
Fri 12th00:31
1.37m L06:45
9.46m H12:51
1.22m L19:06
9.25m H
1.37m L06:45
9.46m H12:51
1.22m L19:06
9.25m H
Sat 13th01:08
1.24m L07:24
9.56m H13:27
1.16m L19:42
9.27m H
1.24m L07:24
9.56m H13:27
1.16m L19:42
9.27m H
Sun 14th01:41
1.24m L07:59
9.50m H14:00
1.23m L20:15
9.17m H
1.24m L07:59
9.50m H14:00
1.23m L20:15
9.17m H
Mon 15th02:11
1.35m L08:33
9.33m H14:29
1.40m L20:45
8.96m H
1.35m L08:33
9.33m H14:29
1.40m L20:45
8.96m H
Tue 16th02:39
1.57m L09:03
9.04m H14:57
1.66m L21:15
8.65m H
1.57m L09:03
9.04m H14:57
1.66m L21:15
8.65m H
Wed 17th03:06
1.88m L09:34
8.65m H15:27
2.02m L21:44
8.26m H
1.88m L09:34
8.65m H15:27
2.02m L21:44
8.26m H
Thu 18th03:35
2.28m L10:05
8.18m H15:57
2.46m L22:15
7.80m H
2.28m L10:05
8.18m H15:57
2.46m L22:15
7.80m H
Fri 19th04:07
2.77m L10:41
7.66m H16:35
2.97m L22:56
7.31m H
2.77m L10:41
7.66m H16:35
2.97m L22:56
7.31m H
Disclaimer
While every effort has been made to ensure the accuracy of the information provided, no responsibility can be accepted by the National Oceanographiy Centre for any consequential loss or damage arising from its use.