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 |
|---|---|---|
| 23-03-2025 03:20 | 5.74 | -0.62 |
| Next HW | Next LW |
|---|---|
| 12:39, 9.48 | 06:22, 3.58 |
| Date | Highest 2025 | Date | Lowest 2025 |
|---|---|---|---|
| 02-03 | 14.2m | 02-03 | 0.05m |
Second Severn Crossing Predicted Tide Table (Chart Datum)
| 23-03-2025 | 24-03-2025 | 25-03-2025 | ||||||
|---|---|---|---|---|---|---|---|---|
| Time (GMT) | Height | Time (GMT) | Height | Time (GMT) | Height | |||
| High | 12:39 | 9.48m | High | 01:21 14:14 | 9.29m 9.20m | High | 03:05 15:49 | 9.44m 9.72m |
| Low | 06:22 18:44 | 3.58m 3.97m | Low | 07:27 20:04 | 4.13m 4.46m | Low | 09:19 22:24 | 4.20m 4.14m |
| 26-03-2025 | 27-03-2025 | 28-03-2025 | ||||||
| Time (GMT) | Height | Time (GMT) | Height | Time (GMT) | Height | |||
| High | 04:29 17:03 | 10.38m 10.85m | High | 05:33 18:01 | 11.68m 12.18m | High | 06:25 18:49 | 12.97m 13.35m |
| Low | 11:12 23:50 | 3.37m 3.04m | Low | 12:21 | 2.22m | Low | 00:50 13:15 | 1.86m 1.12m |
