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 |
|---|---|---|
| 16-12-2025 14:50 | 9.39 | 0.23 |
| Next HW | Next LW |
|---|---|
| 16:42, 11.01 | 23:17, 3.03 |
| Date | Highest 2025 | Date | Lowest 2025 |
|---|---|---|---|
| 27-04 | 15.33m | 31-03 | 0.03m |
Second Severn Crossing Predicted Tide Table (Chart Datum)
| 16-12-2025 | 17-12-2025 | 18-12-2025 | ||||||
|---|---|---|---|---|---|---|---|---|
| Time (GMT) | Height | Time (GMT) | Height | Time (GMT) | Height | |||
| High | 04:18 16:42 | 10.72m 11.01m | High | 05:12 17:33 | 11.18m 11.36m | High | 05:59 18:18 | 11.64m 11.69m |
| Low | 10:48 23:17 | 3.18m 3.03m | Low | 11:41 | 2.77m | Low | 00:06 12:29 | 2.64m 2.40m |
| 19-12-2025 | 20-12-2025 | 21-12-2025 | ||||||
| Time (GMT) | Height | Time (GMT) | Height | Time (GMT) | Height | |||
| High | 06:41 19:00 | 12.01m 11.94m | High | 07:19 19:38 | 12.24m 12.08m | High | 07:54 20:14 | 12.32m 12.09m |
| Low | 00:50 13:12 | 2.31m 2.13m | Low | 01:31 13:53 | 2.09m 1.99m | Low | 02:10 14:31 | 2.01m 1.99m |
