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
16-05-2025 04:504.91-0.04
 Next HWNext LW
07:11, 6.70 13:21, 1.70
Date Highest 2025 Date Lowest 2025
31-03 8.34m 30-03 -0.05m

Port Isaac Predicted Tide Table (Chart Datum)

16-05-202517-05-202518-05-2025
 Time (GMT)Height Time (GMT)Height Time (GMT)Height
High07:11
19:29
6.70m
6.78m
High07:48
20:08
6.47m
6.54m
High08:30
20:55
6.21m
6.29m
Low01:08
13:21
1.52m
1.70m
Low01:44
13:57
1.74m
1.94m
Low02:26
14:40
1.98m
2.20m
19-05-202520-05-202521-05-2025
 Time (GMT)Height Time (GMT)Height Time (GMT)Height
High09:21
21:52
5.96m
6.09m
High10:23
23:00
5.80m
6.02m
High11:36
5.82m
Low03:16
15:34
2.20m
2.43m
Low04:17
16:42
2.34m
2.56m
Low05:28
18:01
2.33m
2.48m