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 HarmonicsLatest Tide Data (Predicted Tide Table)
| Time (GMT) | Elevation | Residual |
|---|---|---|
| 17-12-2025 07:00 | 3.73 | 0 |
| Next HW | Next LW |
|---|---|
| 15:44, 6.48 | 09:39, 2.10 |
| Date | Highest 2025 | Date | Lowest 2025 |
|---|---|---|---|
| 05-11 | 8.38m | 30-03 | -0.05m |
Port Isaac Predicted Tide Table (Chart Datum)
| 17-12-2025 | 18-12-2025 | 19-12-2025 | ||||||
|---|---|---|---|---|---|---|---|---|
| Time (GMT) | Height | Time (GMT) | Height | Time (GMT) | Height | |||
| High | 03:24 15:44 | 6.44m 6.48m | High | 04:07 16:25 | 6.68m 6.64m | High | 04:45 17:03 | 6.89m 6.77m |
| Low | 09:39 22:03 | 2.10m 1.98m | Low | 10:21 22:41 | 1.90m 1.81m | Low | 11:00 23:17 | 1.73m 1.68m |
| 20-12-2025 | 21-12-2025 | 22-12-2025 | ||||||
| Time (GMT) | Height | Time (GMT) | Height | Time (GMT) | Height | |||
| High | 05:21 17:38 | 7.03m 6.86m | High | 05:56 18:13 | 7.12m 6.89m | High | 06:30 18:47 | 7.13m 6.87m |
| Low | 11:36 23:51 | 1.61m 1.61m | Low | 12:11 | 1.55m | Low | 00:25 12:46 | 1.59m 1.55m |
