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 Harmonics

 


Latest Tide Data (Predicted Tide Table)

Time (GMT)ElevationResidual
23-04-2026 03:303.84-0.58
 Next HWNext LW
11:27, 11.08 05:27, 2.35
Date Highest 2026 Date Lowest 2026
04-02 14.02m 21-03 0.33m

Second Severn Crossing Predicted Tide Table (Chart Datum)

23-04-202624-04-202625-04-2026
 Time (GMT)Height Time (GMT)Height Time (GMT)Height
High11:27
23:48
11.08m
10.93m
High12:31
10.39m
High00:59
13:49
10.38m
10.08m
Low05:27
17:45
2.35m
2.85m
Low06:17
18:42
3.06m
3.53m
Low07:38
20:17
3.56m
3.82m
26-04-202627-04-202628-04-2026
 Time (GMT)Height Time (GMT)Height Time (GMT)Height
High02:22
15:07
10.32m
10.31m
High03:39
16:16
10.78m
10.96m
High04:43
17:13
11.53m
11.80m
Low09:12
21:45
3.43m
3.39m
Low10:24
22:51
2.87m
2.65m
Low11:23
23:47
2.21m
1.90m