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.
Second Severn Crossing
Tide Levels and HarmonicsLatest Tide Data (Predicted Tide Table)
| Time (GMT) | Elevation | Residual |
|---|---|---|
| 18-08-2026 19:50 | 6.99 | -0.03 |
| Next HW | Next LW |
|---|---|
| 22:50, 11.99 | 05:17, 2.33 |
| Date | Highest 2026 | Date | Lowest 2026 |
|---|---|---|---|
| 04-02 | 14.02m | 21-03 | 0.33m |
Second Severn Crossing Predicted Tide Table (Chart Datum)
| 18-08-2026 | 19-08-2026 | 20-08-2026 | ||||||
|---|---|---|---|---|---|---|---|---|
| Time (GMT) | Height | Time (GMT) | Height | Time (GMT) | Height | |||
| High | 10:36 22:50 | 12.16m 11.99m | High | 11:09 23:24 | 11.47m 11.22m | High | 11:46 | 10.72m |
| Low | 04:55 17:03 | 1.86m 2.11m | Low | 05:17 17:27 | 2.33m 2.59m | Low | 05:41 17:57 | 2.82m 3.16m |
| 21-08-2026 | 22-08-2026 | 23-08-2026 | ||||||
| Time (GMT) | Height | Time (GMT) | Height | Time (GMT) | Height | |||
| High | 00:05 12:33 | 10.38m 9.95m | High | 01:01 13:45 | 9.55m 9.33m | High | 02:29 15:25 | 9.04m 9.28m |
| Low | 06:12 18:37 | 3.44m 3.87m | Low | 06:57 19:39 | 4.16m 4.55m | Low | 08:14 22:01 | 4.77m 4.63m |
