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
18-04-2026 22:308.37-0.22
 Next HWNext LW
08:27, 13.92 02:56, 0.29
Date Highest 2026 Date Lowest 2026
04-02 14.02m 21-03 0.33m

Second Severn Crossing Predicted Tide Table (Chart Datum)

18-04-202619-04-202620-04-2026
 Time (GMT)Height Time (GMT)Height Time (GMT)Height
High07:46
20:05
14.04m
14.06m
High08:27
20:44
13.92m
13.80m
High09:07
21:24
13.46m
13.23m
Low02:16
14:36
0.41m
0.25m
Low02:56
15:15
0.29m
0.35m
Low03:34
15:52
0.51m
0.77m
21-04-202622-04-202623-04-2026
 Time (GMT)Height Time (GMT)Height Time (GMT)Height
High09:49
22:06
12.75m
12.50m
High10:35
22:52
11.92m
11.70m
High11:27
23:48
11.08m
10.93m
Low04:10
16:28
1.00m
1.39m
Low04:47
17:04
1.64m
2.11m
Low05:27
17:45
2.35m
2.85m