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 |
|---|---|---|
| 18-11-2025 16:40 | 10.67 | 0.08 |
| Next HW | Next LW |
|---|---|
| 18:09, 12.46 | 00:44, 1.76 |
| Date | Highest 2025 | Date | Lowest 2025 |
|---|---|---|---|
| 27-04 | 15.33m | 31-03 | 0.03m |
Second Severn Crossing Predicted Tide Table (Chart Datum)
| 18-11-2025 | 19-11-2025 | 20-11-2025 | ||||||
|---|---|---|---|---|---|---|---|---|
| Time (GMT) | Height | Time (GMT) | Height | Time (GMT) | Height | |||
| High | 05:52 18:09 | 12.20m 12.46m | High | 06:31 18:47 | 12.60m 12.65m | High | 07:07 19:22 | 12.75m 12.63m |
| Low | 00:02 12:22 | 2.08m 1.85m | Low | 00:44 13:02 | 1.76m 1.59m | Low | 01:22 13:39 | 1.61m 1.53m |
| 21-11-2025 | 22-11-2025 | 23-11-2025 | ||||||
| Time (GMT) | Height | Time (GMT) | Height | Time (GMT) | Height | |||
| High | 07:39 19:55 | 12.68m 12.44m | High | 08:10 20:26 | 12.44m 12.12m | High | 08:41 20:58 | 12.09m 11.72m |
| Low | 01:57 14:13 | 1.63m 1.64m | Low | 02:29 14:45 | 1.79m 1.89m | Low | 02:59 15:16 | 2.06m 2.22m |
