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
10-10-2026 23:205.210.04
 Next HWNext LW
07:29, 13.86 01:52, 0.66
Date Highest 2026 Date Lowest 2026
29-09 14.09m 21-03 0.33m

Second Severn Crossing Predicted Tide Table (Chart Datum)

11-10-202612-10-202613-10-2026
 Time (GMT)Height Time (GMT)Height Time (GMT)Height
High07:29
19:44
13.86m
13.90m
High08:03
20:17
13.72m
13.55m
High08:34
20:47
13.28m
12.98m
Low01:52
14:08
0.66m
0.69m
Low02:27
14:41
0.81m
0.94m
Low02:57
15:10
1.18m
1.39m
14-10-202615-10-202616-10-2026
 Time (GMT)Height Time (GMT)Height Time (GMT)Height
High09:03
21:16
12.67m
12.31m
High09:30
21:44
12.00m
11.60m
High09:58
22:14
11.31m
10.87m
Low03:23
15:35
1.66m
1.90m
Low03:46
15:57
2.13m
2.38m
Low04:07
16:21
2.57m
2.85m