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 |
|---|---|---|
| 11-11-2025 08:10 | 6.45 | 0.23 |
| Next HW | Next LW |
|---|---|
| 09:19, 6.61 | 15:57, 2.24 |
| Date | Highest 2025 | Date | Lowest 2025 |
|---|---|---|---|
| 05-11 | 8.38m | 30-03 | -0.05m |
Port Isaac Predicted Tide Table (Chart Datum)
| 11-11-2025 | 12-11-2025 | 13-11-2025 | ||||||
|---|---|---|---|---|---|---|---|---|
| Time (GMT) | Height | Time (GMT) | Height | Time (GMT) | Height | |||
| High | 09:19 21:58 | 6.61m 6.13m | High | 10:28 23:11 | 6.24m 5.84m | High | 11:46 | 6.09m |
| Low | 03:12 15:57 | 2.16m 2.24m | Low | 04:19 17:11 | 2.56m 2.52m | Low | 05:36 18:28 | 2.74m 2.55m |
| 14-11-2025 | 15-11-2025 | 16-11-2025 | ||||||
| Time (GMT) | Height | Time (GMT) | Height | Time (GMT) | Height | |||
| High | 00:30 13:00 | 5.82m 6.18m | High | 01:38 14:02 | 6.04m 6.41m | High | 02:32 14:52 | 6.36m 6.67m |
| Low | 06:52 19:36 | 2.67m 2.39m | Low | 07:55 20:31 | 2.42m 2.14m | Low | 08:47 21:16 | 2.11m 1.88m |
