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 |
|---|---|---|
| 07-12-2025 10:10 | 10.95 | 0.03 |
| Next HW | Next LW |
|---|---|
| 21:05, 12.83 | 15:29, 1.51 |
| Date | Highest 2025 | Date | Lowest 2025 |
|---|---|---|---|
| 27-04 | 15.33m | 31-03 | 0.03m |
Second Severn Crossing Predicted Tide Table (Chart Datum)
| 07-12-2025 | 08-12-2025 | 09-12-2025 | ||||||
|---|---|---|---|---|---|---|---|---|
| Time (GMT) | Height | Time (GMT) | Height | Time (GMT) | Height | |||
| High | 08:37 21:05 | 13.26m 12.83m | High | 09:22 21:50 | 12.79m 12.26m | High | 10:07 22:35 | 12.26m 11.68m |
| Low | 03:02 15:29 | 1.30m 1.51m | Low | 03:46 16:13 | 1.72m 1.97m | Low | 04:26 16:55 | 2.23m 2.46m |
| 10-12-2025 | 11-12-2025 | 12-12-2025 | ||||||
| Time (GMT) | Height | Time (GMT) | Height | Time (GMT) | Height | |||
| High | 10:52 23:21 | 11.75m 11.15m | High | 11:40 | 11.29m | High | 00:11 12:33 | 10.72m 10.91m |
| Low | 05:06 17:37 | 2.72m 2.91m | Low | 05:46 18:20 | 3.12m 3.26m | Low | 06:30 19:10 | 3.44m 3.53m |
