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
10-09-2026 16:006.910.43
 Next HWNext LW
18:53, 13.51 01:44, 0.83
Date Highest 2026 Date Lowest 2026
04-02 14.02m 21-03 0.33m

Second Severn Crossing Predicted Tide Table (Chart Datum)

10-09-202611-09-202612-09-2026
 Time (GMT)Height Time (GMT)Height Time (GMT)Height
High06:35
18:53
12.79m
13.51m
High07:19
19:34
13.58m
14.04m
High07:57
20:11
13.93m
14.11m
Low00:55
13:15
1.57m
1.32m
Low01:44
14:00
0.83m
0.73m
Low02:25
14:39
0.49m
0.56m
13-09-202614-09-202615-09-2026
 Time (GMT)Height Time (GMT)Height Time (GMT)Height
High08:31
20:44
13.84m
13.82m
High09:03
21:15
13.44m
13.28m
High09:32
21:45
12.85m
12.61m
Low03:00
15:12
0.56m
0.75m
Low03:31
15:41
0.92m
1.17m
Low03:56
16:06
1.42m
1.67m