High and low water times and heights at Portsmouth

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
Tue 25th
Sep 2018
04:30
0.90m L
11:26
4.69m H
16:47
0.97m L
23:34
4.66m H
Wed 26th05:03
0.80m L
11:57
4.72m H
17:19
0.88m L
Thu 27th00:07
4.70m H
05:36
0.77m L
12:30
4.74m H
17:52
0.85m L
Fri 28th00:42
4.70m H
06:09
0.79m L
13:06
4.73m H
18:27
0.88m L
Sat 29th01:20
4.66m H
06:43
0.88m L
13:43
4.69m H
19:03
0.97m L
Sun 30th02:00
4.57m H
07:21
1.04m L
14:24
4.58m H
19:42
1.14m L
Mon 1st
Oct 2018
02:47
4.42m H
08:03
1.29m L
15:12
4.41m H
20:30
1.39m L
Tue 2nd03:42
4.24m H
08:57
1.62m L
16:10
4.20m H
21:34
1.68m L
Wed 3rd04:54
4.07m H
10:16
1.91m L
17:31
4.04m H
23:12
1.82m L
Thu 4th06:41
4.05m H
12:03
1.93m L
19:14
4.06m H
Fri 5th00:42
1.69m L
08:03
4.25m H
13:21
1.72m L
20:26
4.29m H
Sat 6th01:50
1.40m L
09:02
4.54m H
14:21
1.38m L
21:17
4.55m H
Sun 7th02:45
1.05m L
09:46
4.78m H
15:10
1.03m L
22:00
4.77m H
Mon 8th03:31
0.74m L
10:27
4.94m H
15:54
0.76m L
22:40
4.89m H
Tue 9th04:14
0.55m L
11:06
4.99m H
16:35
0.62m L
23:21
4.92m H
Wed 10th04:54
0.49m L
11:45
4.97m H
17:14
0.60m L
Thu 11th00:00
4.88m H
05:32
0.56m L
12:24
4.91m H
17:51
0.68m L
Fri 12th00:40
4.79m H
06:09
0.72m L
13:02
4.81m H
18:28
0.84m L
Sat 13th01:19
4.66m H
06:46
0.96m L
13:39
4.67m H
19:05
1.05m L
Sun 14th02:00
4.49m H
07:24
1.25m L
14:18
4.47m H
19:43
1.33m L
Mon 15th02:45
4.27m H
08:03
1.59m L
15:00
4.22m H
20:24
1.65m L
Tue 16th03:41
4.03m H
08:48
1.97m L
15:52
3.93m H
21:15
1.99m L
Wed 17th05:06
3.83m H
10:02
2.30m L
17:17
3.69m H
23:07
2.22m L
Thu 18th06:15
3.76m H
12:21
2.32m L
18:34
3.62m H
Fri 19th00:43
2.14m L
07:26
3.84m H
13:18
2.14m L
19:48
3.74m H
Sat 20th01:34
1.93m L
08:30
4.06m H
14:02
1.89m L
20:45
3.98m H
Sun 21st02:15
1.68m L
09:15
4.30m H
14:37
1.62m L
21:27
4.24m H
Mon 22nd02:51
1.42m L
09:52
4.51m H
15:10
1.36m L
22:02
4.45m 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.