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
Fri 31st
Mar 202301:22
6.57m H07:59
3.83m L14:26
6.57m H20:33
3.73m L
Mar 202301:22
6.57m H07:59
3.83m L14:26
6.57m H20:33
3.73m L
Sat 1st
Apr 202303:04
6.97m H09:21
3.31m L15:45
7.16m H21:42
3.12m L
Apr 202303:04
6.97m H09:21
3.31m L15:45
7.16m H21:42
3.12m L
Sun 2nd04:06
7.63m H10:15
2.68m L16:33
7.82m H22:29
2.49m L
7.63m H10:15
2.68m L16:33
7.82m H22:29
2.49m L
Mon 3rd04:48
8.23m H10:54
2.14m L17:10
8.37m H23:06
1.97m L
8.23m H10:54
2.14m L17:10
8.37m H23:06
1.97m L
Tue 4th05:23
8.69m H11:27
1.73m L17:43
8.78m H23:39
1.58m L
8.69m H11:27
1.73m L17:43
8.78m H23:39
1.58m L
Wed 5th05:55
9.02m H11:59
1.44m L18:14
9.08m H
9.02m H11:59
1.44m L18:14
9.08m H
Thu 6th00:10
1.30m L06:27
9.26m H12:29
1.24m L18:45
9.28m H
1.30m L06:27
9.26m H12:29
1.24m L18:45
9.28m H
Fri 7th00:42
1.13m L06:57
9.40m H13:00
1.14m L19:16
9.39m H
1.13m L06:57
9.40m H13:00
1.14m L19:16
9.39m H
Sat 8th01:13
1.07m L07:30
9.44m H13:30
1.16m L19:48
9.37m H
1.07m L07:30
9.44m H13:30
1.16m L19:48
9.37m H
Sun 9th01:44
1.15m L08:03
9.33m H13:59
1.32m L20:20
9.18m H
1.15m L08:03
9.33m H13:59
1.32m L20:20
9.18m H
Mon 10th02:15
1.38m L08:36
9.05m H14:30
1.63m L20:54
8.85m H
1.38m L08:36
9.05m H14:30
1.63m L20:54
8.85m H
Tue 11th02:48
1.75m L09:14
8.62m H15:03
2.07m L21:33
8.38m H
1.75m L09:14
8.62m H15:03
2.07m L21:33
8.38m H
Wed 12th03:29
2.24m L09:58
8.06m H15:48
2.62m L22:24
7.83m H
2.24m L09:58
8.06m H15:48
2.62m L22:24
7.83m H
Thu 13th04:29
2.79m L11:00
7.47m H17:00
3.19m L23:40
7.37m H
2.79m L11:00
7.47m H17:00
3.19m L23:40
7.37m H
Fri 14th06:08
3.14m L12:30
7.10m H18:54
3.39m L
3.14m L12:30
7.10m H18:54
3.39m L
Sat 15th01:24
7.35m H07:51
2.93m L14:16
7.36m H20:36
2.93m L
7.35m H07:51
2.93m L14:16
7.36m H20:36
2.93m L
Sun 16th02:55
7.93m H09:13
2.29m L15:33
8.07m H21:46
2.18m L
7.93m H09:13
2.29m L15:33
8.07m H21:46
2.18m L
Mon 17th03:59
8.69m H10:13
1.59m L16:30
8.77m H22:39
1.51m L
8.69m H10:13
1.59m L16:30
8.77m H22:39
1.51m L
Tue 18th04:50
9.30m H11:01
1.08m L17:15
9.29m H23:23
1.04m L
9.30m H11:01
1.08m L17:15
9.29m H23:23
1.04m L
Wed 19th05:34
9.69m H11:43
0.78m L17:56
9.59m H
9.69m H11:43
0.78m L17:56
9.59m H
Thu 20th00:03
0.79m L06:15
9.86m H12:21
0.68m L18:34
9.72m H
0.79m L06:15
9.86m H12:21
0.68m L18:34
9.72m H
Fri 21st00:40
0.74m L06:54
9.85m H12:58
0.75m L19:11
9.69m H
0.74m L06:54
9.85m H12:58
0.75m L19:11
9.69m H
Sat 22nd01:15
0.87m L07:32
9.66m H13:31
0.99m L19:45
9.49m H
0.87m L07:32
9.66m H13:31
0.99m L19:45
9.49m H
Sun 23rd01:48
1.16m L08:07
9.30m H14:02
1.36m L20:18
9.13m H
1.16m L08:07
9.30m H14:02
1.36m L20:18
9.13m H
Mon 24th02:17
1.59m L08:41
8.81m H14:31
1.83m L20:51
8.66m H
1.59m L08:41
8.81m H14:31
1.83m L20:51
8.66m H
Tue 25th02:46
2.10m L09:14
8.22m H15:00
2.36m L21:24
8.11m H
2.10m L09:14
8.22m H15:00
2.36m L21:24
8.11m H
Wed 26th03:19
2.65m L09:50
7.61m H15:36
2.93m L22:03
7.53m H
2.65m L09:50
7.61m H15:36
2.93m L22:03
7.53m H
Thu 27th04:06
3.22m L10:39
7.02m H16:30
3.49m L23:02
7.00m H
3.22m L10:39
7.02m H16:30
3.49m L23:02
7.00m 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.