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 |
|---|---|---|
| 17-11-2025 21:40 | 1.73 | 0.04 |
| Next HW | Next LW |
|---|---|
| 03:56, 6.95 | 21:56, 1.67 |
| Date | Highest 2025 | Date | Lowest 2025 |
|---|---|---|---|
| 05-11 | 8.38m | 30-03 | -0.05m |
Port Isaac Predicted Tide Table (Chart Datum)
| 17-11-2025 | 18-11-2025 | 19-11-2025 | ||||||
|---|---|---|---|---|---|---|---|---|
| Time (GMT) | Height | Time (GMT) | Height | Time (GMT) | Height | |||
| High | 03:17 15:34 | 6.68m 6.90m | High | 03:56 16:12 | 6.95m 7.06m | High | 04:31 16:47 | 7.14m 7.14m |
| Low | 09:31 21:56 | 1.83m 1.67m | Low | 10:09 22:31 | 1.62m 1.52m | Low | 10:45 23:03 | 1.49m 1.45m |
| 20-11-2025 | 21-11-2025 | 22-11-2025 | ||||||
| Time (GMT) | Height | Time (GMT) | Height | Time (GMT) | Height | |||
| High | 05:05 17:20 | 7.24m 7.15m | High | 05:37 17:52 | 7.26m 7.08m | High | 06:08 18:23 | 7.19m 6.96m |
| Low | 11:18 23:34 | 1.44m 1.46m | Low | 11:50 | 1.47m | Low | 00:04 12:21 | 1.54m 1.57m |
