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
09-11-2025 10:404.450.12
 Next HWNext LW
20:01, 7.16 13:58, 1.31
Date Highest 2025 Date Lowest 2025
05-11 8.38m 30-03 -0.05m

Port Isaac Predicted Tide Table (Chart Datum)

09-11-202510-11-202511-11-2025
 Time (GMT)Height Time (GMT)Height Time (GMT)Height
High07:31
20:01
7.56m
7.16m
High08:21
20:55
7.09m
6.61m
High09:19
21:58
6.61m
6.13m
Low01:27
13:58
1.17m
1.31m
Low02:16
14:53
1.66m
1.80m
Low03:12
15:57
2.16m
2.24m
12-11-202513-11-202514-11-2025
 Time (GMT)Height Time (GMT)Height Time (GMT)Height
High10:28
23:11
6.24m
5.84m
High11:46
6.09m
High00:30
13:00
5.82m
6.18m
Low04:19
17:11
2.56m
2.52m
Low05:36
18:28
2.74m
2.55m
Low06:52
19:36
2.67m
2.39m