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 |
|---|---|---|
| 17-07-2025 05:20 | 2.26 | 0.15 |
| Next HW | Next LW |
|---|---|
| 11:33, 11.77 | 05:47, 1.95 |
| Date | Highest 2025 | Date | Lowest 2025 |
|---|---|---|---|
| 27-04 | 15.33m | 31-03 | 0.03m |
Second Severn Crossing Predicted Tide Table (Chart Datum)
| 17-07-2025 | 18-07-2025 | 19-07-2025 | ||||||
|---|---|---|---|---|---|---|---|---|
| Time (GMT) | Height | Time (GMT) | Height | Time (GMT) | Height | |||
| High | 11:33 23:56 | 11.77m 11.81m | High | 12:23 | 11.51m | High | 00:52 13:23 | 11.48m 11.22m |
| Low | 05:47 18:00 | 1.95m 2.29m | Low | 06:26 18:42 | 2.10m 2.49m | Low | 07:13 19:37 | 2.40m 2.82m |
| 20-07-2025 | 21-07-2025 | 22-07-2025 | ||||||
| Time (GMT) | Height | Time (GMT) | Height | Time (GMT) | Height | |||
| High | 02:00 14:34 | 11.14m 10.99m | High | 03:16 15:52 | 10.95m 11.03m | High | 04:33 17:05 | 11.06m 11.38m |
| Low | 08:14 20:55 | 2.83m 3.16m | Low | 09:41 22:30 | 3.12m 3.16m | Low | 11:08 23:51 | 3.00m 2.79m |
