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
15-02-2025 16:301.69-0.46
 Next HWNext LW
21:20, 12.69 03:53, 1.56
Date Highest 2025 Date Lowest 2025
01-02 13.75m 01-02 0.58m

Second Severn Crossing Predicted Tide Table (Chart Datum)

15-02-202516-02-202517-02-2025
 Time (GMT)Height Time (GMT)Height Time (GMT)Height
High09:02
21:20
12.94m
12.69m
High09:30
21:46
12.70m
12.36m
High09:56
22:12
12.35m
11.94m
Low03:27
15:45
1.42m
1.60m
Low03:53
16:09
1.56m
1.80m
Low04:16
16:30
1.76m
2.00m
18-02-202519-02-202520-02-2025
 Time (GMT)Height Time (GMT)Height Time (GMT)Height
High10:23
22:38
11.92m
11.47m
High10:51
23:08
11.41m
10.93m
High11:26
23:46
10.80m
10.32m
Low04:37
16:52
1.97m
2.21m
Low05:02
17:17
2.24m
2.50m
Low05:31
17:48
2.64m
2.92m