High and low water times and heights at Barmouth
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 2nd
Jun 202301:26
1.28m L06:31
4.50m H13:55
1.11m L18:57
4.57m H
Jun 202301:26
1.28m L06:31
4.50m H13:55
1.11m L18:57
4.57m H
Sat 3rd02:14
1.11m L07:15
4.71m H14:40
1.01m L19:39
4.79m H
1.11m L07:15
4.71m H14:40
1.01m L19:39
4.79m H
Sun 4th03:01
0.98m L07:59
4.84m H15:24
0.97m L20:23
4.93m H
0.98m L07:59
4.84m H15:24
0.97m L20:23
4.93m H
Mon 5th03:46
0.91m L08:43
4.89m H16:06
0.98m L21:06
4.98m H
0.91m L08:43
4.89m H16:06
0.98m L21:06
4.98m H
Tue 6th04:30
0.89m L09:29
4.84m H16:46
1.04m L21:52
4.96m H
0.89m L09:29
4.84m H16:46
1.04m L21:52
4.96m H
Wed 7th05:15
0.92m L10:16
4.70m H17:28
1.14m L22:41
4.86m H
0.92m L10:16
4.70m H17:28
1.14m L22:41
4.86m H
Thu 8th06:03
0.98m L11:07
4.49m H18:15
1.28m L23:33
4.70m H
0.98m L11:07
4.49m H18:15
1.28m L23:33
4.70m H
Fri 9th06:57
1.07m L12:02
4.24m H19:12
1.42m L
1.07m L12:02
4.24m H19:12
1.42m L
Sat 10th00:30
4.53m H07:59
1.16m L13:04
4.01m H20:18
1.53m L
4.53m H07:59
1.16m L13:04
4.01m H20:18
1.53m L
Sun 11th01:33
4.37m H09:04
1.22m L14:10
3.87m H21:27
1.56m L
4.37m H09:04
1.22m L14:10
3.87m H21:27
1.56m L
Mon 12th02:39
4.29m H10:08
1.24m L15:18
3.86m H22:33
1.52m L
4.29m H10:08
1.24m L15:18
3.86m H22:33
1.52m L
Tue 13th03:45
4.28m H11:11
1.23m L16:24
3.97m H23:37
1.43m L
4.28m H11:11
1.23m L16:24
3.97m H23:37
1.43m L
Wed 14th04:49
4.34m H12:11
1.21m L17:24
4.15m H
4.34m H12:11
1.21m L17:24
4.15m H
Thu 15th00:38
1.32m L05:48
4.44m H13:06
1.18m L18:17
4.35m H
1.32m L05:48
4.44m H13:06
1.18m L18:17
4.35m H
Fri 16th01:34
1.21m L06:41
4.52m H13:54
1.18m L19:03
4.52m H
1.21m L06:41
4.52m H13:54
1.18m L19:03
4.52m H
Sat 17th02:23
1.15m L07:27
4.56m H14:33
1.18m L19:46
4.63m H
1.15m L07:27
4.56m H14:33
1.18m L19:46
4.63m H
Sun 18th03:05
1.12m L08:09
4.55m H15:08
1.20m L20:26
4.69m H
1.12m L08:09
4.55m H15:08
1.20m L20:26
4.69m H
Mon 19th03:42
1.13m L08:47
4.51m H15:41
1.22m L21:03
4.69m H
1.13m L08:47
4.51m H15:41
1.22m L21:03
4.69m H
Tue 20th04:18
1.16m L09:24
4.43m H16:15
1.26m L21:39
4.64m H
1.16m L09:24
4.43m H16:15
1.26m L21:39
4.64m H
Wed 21st04:54
1.22m L10:00
4.32m H16:50
1.34m L22:15
4.54m H
1.22m L10:00
4.32m H16:50
1.34m L22:15
4.54m H
Thu 22nd05:30
1.30m L10:36
4.18m H17:26
1.45m L22:52
4.41m H
1.30m L10:36
4.18m H17:26
1.45m L22:52
4.41m H
Fri 23rd06:07
1.40m L11:15
4.01m H18:03
1.58m L23:30
4.26m H
1.40m L11:15
4.01m H18:03
1.58m L23:30
4.26m H
Sat 24th06:45
1.50m L11:55
3.83m H18:43
1.70m L
1.50m L11:55
3.83m H18:43
1.70m L
Sun 25th00:11
4.10m H07:28
1.60m L12:40
3.66m H19:30
1.82m L
4.10m H07:28
1.60m L12:40
3.66m H19:30
1.82m L
Mon 26th00:56
3.95m H08:18
1.67m L13:31
3.54m H20:25
1.90m L
3.95m H08:18
1.67m L13:31
3.54m H20:25
1.90m L
Tue 27th01:48
3.84m H09:19
1.72m L14:31
3.51m H21:35
1.92m L
3.84m H09:19
1.72m L14:31
3.51m H21:35
1.92m L
Wed 28th02:48
3.80m H10:31
1.69m L15:37
3.60m H22:54
1.83m L
3.80m H10:31
1.69m L15:37
3.60m H22:54
1.83m L
Thu 29th03:53
3.87m H11:36
1.57m L16:39
3.82m H23:59
1.65m L
3.87m H11:36
1.57m L16:39
3.82m H23:59
1.65m L
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.