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 |
|---|---|---|
| 06-12-2025 03:10 | 2.52 | 0.61 |
| Next HW | Next LW |
|---|---|
| 07:51, 13.55 | 14:42, 1.21 |
| Date | Highest 2025 | Date | Lowest 2025 |
|---|---|---|---|
| 27-04 | 15.33m | 31-03 | 0.03m |
Second Severn Crossing Predicted Tide Table (Chart Datum)
| 06-12-2025 | 07-12-2025 | 08-12-2025 | ||||||
|---|---|---|---|---|---|---|---|---|
| Time (GMT) | Height | Time (GMT) | Height | Time (GMT) | Height | |||
| High | 07:51 20:19 | 13.55m 13.29m | High | 08:37 21:05 | 13.26m 12.83m | High | 09:22 21:50 | 12.79m 12.26m |
| Low | 02:16 14:42 | 1.08m 1.21m | Low | 03:02 15:29 | 1.30m 1.51m | Low | 03:46 16:13 | 1.72m 1.97m |
| 09-12-2025 | 10-12-2025 | 11-12-2025 | ||||||
| Time (GMT) | Height | Time (GMT) | Height | Time (GMT) | Height | |||
| High | 10:07 22:35 | 12.26m 11.68m | High | 10:52 23:21 | 11.75m 11.15m | High | 11:40 | 11.29m |
| Low | 04:26 16:55 | 2.23m 2.46m | Low | 05:06 17:37 | 2.72m 2.91m | Low | 05:46 18:20 | 3.12m 3.26m |
