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
05-03-2026 11:207.83-0.14
 Next HWNext LW
20:49, 13.54 15:18, 0.79
Date Highest 2026 Date Lowest 2026
04-02 14.02m 05-03 0.52m

Second Severn Crossing Predicted Tide Table (Chart Datum)

05-03-202606-03-202607-03-2026
 Time (GMT)Height Time (GMT)Height Time (GMT)Height
High08:31
20:49
13.74m
13.54m
High09:02
21:18
13.48m
13.18m
High09:31
21:46
13.04m
12.66m
Low02:58
15:18
0.63m
0.79m
Low03:28
15:45
0.80m
1.08m
Low03:54
16:08
1.12m
1.45m
08-03-202609-03-202610-03-2026
 Time (GMT)Height Time (GMT)Height Time (GMT)Height
High09:58
22:13
12.48m
12.06m
High10:26
22:40
11.83m
11.39m
High10:56
23:12
11.10m
10.66m
Low04:16
16:28
1.48m
1.81m
Low04:37
16:49
1.85m
2.17m
Low05:01
17:15
2.29m
2.62m