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
20-04-2026 18:206.21-0.04
 Next HWNext LW
21:24, 13.23 04:10, 1
Date Highest 2026 Date Lowest 2026
04-02 14.02m 21-03 0.33m

Second Severn Crossing Predicted Tide Table (Chart Datum)

20-04-202621-04-202622-04-2026
 Time (GMT)Height Time (GMT)Height Time (GMT)Height
High09:07
21:24
13.46m
13.23m
High09:49
22:06
12.75m
12.50m
High10:35
22:52
11.92m
11.70m
Low03:34
15:52
0.51m
0.77m
Low04:10
16:28
1.00m
1.39m
Low04:47
17:04
1.64m
2.11m
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