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 |
|---|---|---|
| 21-05-2025 12:00 | 9.5 | 0.04 |
| Next HW | Next LW |
|---|---|
| 13:22, 10.34 | 19:22, 3.50 |
| Date | Highest 2025 | Date | Lowest 2025 |
|---|---|---|---|
| 27-04 | 15.33m | 31-03 | 0.03m |
Second Severn Crossing Predicted Tide Table (Chart Datum)
| 21-05-2025 | 22-05-2025 | 23-05-2025 | ||||||
|---|---|---|---|---|---|---|---|---|
| Time (GMT) | Height | Time (GMT) | Height | Time (GMT) | Height | |||
| High | 00:43 13:22 | 10.39m 10.34m | High | 01:58 14:36 | 10.58m 10.70m | High | 03:13 15:47 | 11.14m 11.38m |
| Low | 06:57 19:22 | 3.18m 3.50m | Low | 08:13 20:50 | 3.11m 3.34m | Low | 09:40 22:21 | 2.75m 2.79m |
| 24-05-2025 | 25-05-2025 | 26-05-2025 | ||||||
| Time (GMT) | Height | Time (GMT) | Height | Time (GMT) | Height | |||
| High | 04:21 16:51 | 11.94m 12.24m | High | 05:21 17:48 | 12.74m 13.02m | High | 06:16 18:40 | 13.31m 13.51m |
| Low | 10:58 23:34 | 2.15m 2.04m | Low | 12:04 | 1.50m | Low | 00:35 13:01 | 1.36m 1.02m |
