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 23rd
Apr 202102:48
7.66m H09:07
2.56m L15:29
7.91m H21:33
2.34m L
Apr 202102:48
7.66m H09:07
2.56m L15:29
7.91m H21:33
2.34m L
Sat 24th03:49
8.42m H10:03
1.83m L16:22
8.67m H22:24
1.62m L
8.42m H10:03
1.83m L16:22
8.67m H22:24
1.62m L
Sun 25th04:39
9.12m H10:51
1.21m L17:08
9.30m H23:10
1.04m L
9.12m H10:51
1.21m L17:08
9.30m H23:10
1.04m L
Mon 26th05:25
9.66m H11:36
0.77m L17:51
9.76m H23:54
0.63m L
9.66m H11:36
0.77m L17:51
9.76m H23:54
0.63m L
Tue 27th06:09
10.02m H12:18
0.51m L18:33
10.04m H
10.02m H12:18
0.51m L18:33
10.04m H
Wed 28th00:37
0.42m L06:53
10.16m H13:01
0.47m L19:16
10.10m H
0.42m L06:53
10.16m H13:01
0.47m L19:16
10.10m H
Thu 29th01:21
0.43m L07:37
10.07m H13:43
0.65m L19:59
9.94m H
0.43m L07:37
10.07m H13:43
0.65m L19:59
9.94m H
Fri 30th02:03
0.69m L08:21
9.73m H14:24
1.06m L20:42
9.54m H
0.69m L08:21
9.73m H14:24
1.06m L20:42
9.54m H
Sat 1st
May 202102:46
1.16m L09:05
9.15m H15:05
1.66m L21:26
8.95m H
May 202102:46
1.16m L09:05
9.15m H15:05
1.66m L21:26
8.95m H
Sun 2nd03:31
1.79m L09:52
8.45m H15:49
2.32m L22:17
8.30m H
1.79m L09:52
8.45m H15:49
2.32m L22:17
8.30m H
Mon 3rd04:26
2.44m L10:48
7.75m H16:49
2.94m L23:22
7.71m H
2.44m L10:48
7.75m H16:49
2.94m L23:22
7.71m H
Tue 4th05:42
2.94m L12:03
7.24m H18:18
3.33m L
2.94m L12:03
7.24m H18:18
3.33m L
Wed 5th00:48
7.44m H07:11
3.07m L13:35
7.17m H19:53
3.23m L
7.44m H07:11
3.07m L13:35
7.17m H19:53
3.23m L
Thu 6th02:13
7.62m H08:31
2.80m L14:53
7.53m H21:06
2.80m L
7.62m H08:31
2.80m L14:53
7.53m H21:06
2.80m L
Fri 7th03:19
8.04m H09:31
2.38m L15:50
8.01m H21:58
2.34m L
8.04m H09:31
2.38m L15:50
8.01m H21:58
2.34m L
Sat 8th04:10
8.46m H10:16
2.01m L16:35
8.41m H22:38
1.99m L
8.46m H10:16
2.01m L16:35
8.41m H22:38
1.99m L
Sun 9th04:52
8.74m H10:54
1.75m L17:12
8.69m H23:12
1.75m L
8.74m H10:54
1.75m L17:12
8.69m H23:12
1.75m L
Mon 10th05:28
8.91m H11:26
1.58m L17:45
8.88m H23:44
1.61m L
8.91m H11:26
1.58m L17:45
8.88m H23:44
1.61m L
Tue 11th06:01
9.01m H11:58
1.48m L18:15
9.01m H
9.01m H11:58
1.48m L18:15
9.01m H
Wed 12th00:15
1.53m L06:33
9.05m H12:30
1.45m L18:47
9.07m H
1.53m L06:33
9.05m H12:30
1.45m L18:47
9.07m H
Thu 13th00:45
1.53m L07:06
9.02m H13:01
1.50m L19:18
9.04m H
1.53m L07:06
9.02m H13:01
1.50m L19:18
9.04m H
Fri 14th01:16
1.62m L07:37
8.89m H13:31
1.66m L19:48
8.90m H
1.62m L07:37
8.89m H13:31
1.66m L19:48
8.90m H
Sat 15th01:45
1.81m L08:09
8.66m H14:00
1.90m L20:18
8.67m H
1.81m L08:09
8.66m H14:00
1.90m L20:18
8.67m H
Sun 16th02:15
2.08m L08:40
8.34m H14:30
2.20m L20:51
8.35m H
2.08m L08:40
8.34m H14:30
2.20m L20:51
8.35m H
Mon 17th02:47
2.39m L09:15
7.98m H15:03
2.54m L21:28
8.00m H
2.39m L09:15
7.98m H15:03
2.54m L21:28
8.00m H
Tue 18th03:27
2.73m L09:59
7.60m H15:49
2.90m L22:18
7.66m H
2.73m L09:59
7.60m H15:49
2.90m L22:18
7.66m H
Wed 19th04:26
3.03m L10:57
7.29m H16:57
3.19m L23:24
7.43m H
3.03m L10:57
7.29m H16:57
3.19m L23:24
7.43m H
Thu 20th05:48
3.13m L12:12
7.19m H18:24
3.20m L
3.13m L12:12
7.19m H18:24
3.20m L
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.