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
11-02-2025 22:301.49-0.08
 Next HWNext LW
05:21, 7.28 23:19, 1.32
Date Highest 2025 Date Lowest 2025
01-02 7.91m 01-02 0.57m

Port Isaac Predicted Tide Table (Chart Datum)

11-02-202512-02-202513-02-2025
 Time (GMT)Height Time (GMT)Height Time (GMT)Height
High04:39
17:04
6.91m
6.90m
High05:21
17:42
7.28m
7.18m
High05:58
18:17
7.49m
7.32m
Low11:06
23:19
1.37m
1.32m
Low11:46
23:57
1.08m
1.07m
Low12:21
0.94m
14-02-202515-02-202516-02-2025
 Time (GMT)Height Time (GMT)Height Time (GMT)Height
High06:31
18:48
7.57m
7.34m
High07:01
19:17
7.51m
7.25m
High07:30
19:46
7.35m
7.06m
Low00:30
12:52
0.96m
0.93m
Low00:59
13:19
0.97m
1.03m
Low01:26
13:45
1.08m
1.20m