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
16-04-2026 11:203.420.17
 Next HWNext LW
18:43, 13.35 13:09, 1.13
Date Highest 2026 Date Lowest 2026
04-02 14.02m 21-03 0.33m

Second Severn Crossing Predicted Tide Table (Chart Datum)

16-04-202617-04-202618-04-2026
 Time (GMT)Height Time (GMT)Height Time (GMT)Height
High06:20
18:43
12.98m
13.35m
High07:04
19:24
13.72m
13.93m
High07:46
20:05
14.04m
14.06m
Low00:45
13:09
1.71m
1.13m
Low01:33
13:54
0.90m
0.51m
Low02:16
14:36
0.41m
0.25m
19-04-202620-04-202621-04-2026
 Time (GMT)Height Time (GMT)Height Time (GMT)Height
High08:27
20:44
13.92m
13.80m
High09:07
21:24
13.46m
13.23m
High09:49
22:06
12.75m
12.50m
Low02:56
15:15
0.29m
0.35m
Low03:34
15:52
0.51m
0.77m
Low04:10
16:28
1.00m
1.39m