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)

Prediction chart   UK & Ireland
© National Oceanography Centre, Liverpool
Wed 15th
Aug 2018
02:45
0.84m L
08:58
9.58m H
14:57
1.04m L
21:16
9.60m H
Thu 16th03:24
1.28m L
09:39
9.12m H
15:35
1.53m L
21:57
9.05m H
Fri 17th03:58
1.84m L
10:19
8.55m H
16:12
2.10m L
22:39
8.42m H
Sat 18th04:36
2.43m L
11:03
7.96m H
16:57
2.69m L
23:27
7.80m H
Sun 19th05:27
2.98m L
12:00
7.45m H
18:03
3.19m L
Mon 20th00:30
7.30m H
06:44
3.37m L
13:14
7.17m H
19:27
3.41m L
Tue 21st01:51
7.11m H
08:09
3.40m L
14:37
7.28m H
20:46
3.23m L
Wed 22nd03:12
7.32m H
09:22
3.08m L
15:45
7.72m H
21:49
2.82m L
Thu 23rd04:12
7.77m H
10:17
2.63m L
16:37
8.23m H
22:38
2.36m L
Fri 24th04:59
8.22m H
11:00
2.21m L
17:19
8.66m H
23:18
1.98m L
Sat 25th05:38
8.58m H
11:36
1.88m L
17:55
8.97m H
23:53
1.70m L
Sun 26th06:12
8.84m H
12:09
1.65m L
18:28
9.17m H
Mon 27th00:26
1.50m L
06:44
9.02m H
12:41
1.49m L
19:00
9.30m H
Tue 28th00:59
1.36m L
07:16
9.14m H
13:12
1.40m L
19:33
9.36m H
Wed 29th01:31
1.31m L
07:48
9.17m H
13:44
1.41m L
20:06
9.31m H
Thu 30th02:03
1.37m L
08:20
9.09m H
14:15
1.53m L
20:38
9.16m H
Fri 31st02:35
1.55m L
08:52
8.90m H
14:45
1.77m L
21:12
8.88m H
Sat 1st
Sep 2018
03:06
1.83m L
09:27
8.59m H
15:18
2.10m L
21:50
8.51m H
Sun 2nd03:42
2.20m L
10:06
8.22m H
15:57
2.49m L
22:35
8.09m H
Mon 3rd04:29
2.61m L
10:59
7.82m H
16:56
2.91m L
23:36
7.68m H
Tue 4th05:41
2.99m L
12:10
7.52m H
18:29
3.17m L
Wed 5th01:00
7.49m H
07:17
3.08m L
13:42
7.58m H
20:09
2.95m L
Thu 6th02:35
7.75m H
08:49
2.69m L
15:12
8.12m H
21:33
2.33m L
Fri 7th03:52
8.40m H
10:01
2.02m L
16:18
8.86m H
22:36
1.61m L
Sat 8th04:51
9.09m H
10:57
1.37m L
17:12
9.53m H
23:27
1.03m L
Sun 9th05:41
9.63m H
11:46
0.88m L
18:00
9.99m H
Mon 10th00:15
0.66m L
06:27
9.95m H
12:30
0.59m L
18:45
10.23m H
Tue 11th00:58
0.51m L
07:10
10.07m H
13:12
0.53m L
19:27
10.24m H

Disclaimer

While every effort has been made to ensure the accuracy of the information provided, no responsibility can be accepted by the Natural Environment Research Council for any consequential loss or damage arising from its use.