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 |
|---|---|---|
| 09-12-2025 16:20 | 3.34 | 0.63 |
| Next HW | Next LW |
|---|---|
| 22:35, 11.68 | 16:55, 2.46 |
| Date | Highest 2025 | Date | Lowest 2025 |
|---|---|---|---|
| 27-04 | 15.33m | 31-03 | 0.03m |
Second Severn Crossing Predicted Tide Table (Chart Datum)
| 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 |
| 12-12-2025 | 13-12-2025 | 14-12-2025 | ||||||
| Time (GMT) | Height | Time (GMT) | Height | Time (GMT) | Height | |||
| High | 00:11 12:33 | 10.72m 10.91m | High | 01:07 13:33 | 10.40m 10.64m | High | 02:09 14:39 | 10.27m 10.56m |
| Low | 06:30 19:10 | 3.44m 3.53m | Low | 07:26 20:10 | 3.67m 3.67m | Low | 08:36 21:17 | 3.72m 3.64m |
