National Network of Regional Coastal Monitoring Programmes

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Note that these are real-time data and are not quality-controlled. Long-range graphs are plotted from a randomised subsample of half-hourly data.

Port Isaac

Tide Levels and Harmonics

 


Latest Tide Data (Predicted Tide Table)

Time (GMT)ElevationResidual
20-06-2025 07:202.40
 Next HWNext LW
12:07, 6.25 18:31, 2.06
Date Highest 2025 Date Lowest 2025
31-03 8.34m 30-03 -0.05m

Port Isaac Predicted Tide Table (Chart Datum)

20-06-202521-06-202522-06-2025
 Time (GMT)Height Time (GMT)Height Time (GMT)Height
High12:07
6.25m
High00:41
13:15
6.54m
6.41m
High01:48
14:21
6.70m
6.67m
Low05:59
18:31
1.92m
2.06m
Low07:06
19:40
1.83m
1.88m
Low08:13
20:46
1.66m
1.62m
23-06-202524-06-202525-06-2025
 Time (GMT)Height Time (GMT)Height Time (GMT)Height
High02:52
15:22
6.91m
6.98m
High03:53
16:19
7.13m
7.26m
High04:49
17:12
7.29m
7.46m
Low09:16
21:48
1.45m
1.35m
Low10:15
22:45
1.25m
1.12m
Low11:09
23:39
1.11m
0.98m