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 |
|---|---|---|
| 26-04-2025 23:20 | 3.2 | 0.09 |
| Next HW | Next LW |
|---|---|
| 06:42, 13.87 | 01:08, 0.92 |
| Date | Highest 2025 | Date | Lowest 2025 |
|---|---|---|---|
| 31-03 | 15.17m | 31-03 | 0.03m |
Second Severn Crossing Predicted Tide Table (Chart Datum)
| 27-04-2025 | 28-04-2025 | 29-04-2025 | ||||||
|---|---|---|---|---|---|---|---|---|
| Time (GMT) | Height | Time (GMT) | Height | Time (GMT) | Height | |||
| High | 06:42 19:05 | 13.87m 14.07m | High | 07:28 19:48 | 14.26m 14.26m | High | 08:11 20:30 | 14.14m 13.98m |
| Low | 01:08 13:32 | 0.92m 0.43m | Low | 01:56 14:17 | 0.32m 0.11m | Low | 02:39 14:59 | 0.15m 0.22m |
| 30-04-2025 | 01-05-2025 | 02-05-2025 | ||||||
| Time (GMT) | Height | Time (GMT) | Height | Time (GMT) | Height | |||
| High | 08:54 21:10 | 13.62m 13.35m | High | 09:36 21:51 | 12.83m 12.53m | High | 10:19 22:35 | 11.91m 11.66m |
| Low | 03:19 15:37 | 0.40m 0.70m | Low | 03:57 16:13 | 0.97m 1.41m | Low | 04:33 16:48 | 1.72m 2.20m |
