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
13-09-2026 16:503.46-0.04
 Next HWNext LW
20:44, 13.82 03:31, 0.92
Date Highest 2026 Date Lowest 2026
04-02 14.02m 21-03 0.33m

Second Severn Crossing Predicted Tide Table (Chart Datum)

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
16-09-202617-09-202618-09-2026
 Time (GMT)Height Time (GMT)Height Time (GMT)Height
High10:00
22:13
12.16m
11.86m
High10:29
22:44
11.42m
11.04m
High11:01
23:20
10.63m
10.18m
Low04:18
16:27
1.92m
2.17m
Low04:38
16:50
2.39m
2.67m
Low05:02
17:18
2.88m
3.25m