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
20-06-2025 20:002.8-0.12
 Next HWNext LW
02:35, 11.36 20:11, 2.91
Date Highest 2025 Date Lowest 2025
27-04 15.33m 31-03 0.03m

Second Severn Crossing Predicted Tide Table (Chart Datum)

20-06-202521-06-202522-06-2025
 Time (GMT)Height Time (GMT)Height Time (GMT)Height
High01:25
13:59
11.22m
11.13m
High02:35
15:09
11.36m
11.38m
High03:45
16:18
11.65m
11.79m
Low07:43
20:11
2.58m
2.91m
Low08:54
21:34
2.60m
2.82m
Low10:16
22:56
2.48m
2.50m
23-06-202524-06-202525-06-2025
 Time (GMT)Height Time (GMT)Height Time (GMT)Height
High04:52
17:22
12.02m
12.26m
High05:54
18:20
12.37m
12.65m
High06:52
19:14
12.61m
12.86m
Low11:30
2.19m
Low00:06
12:35
2.08m
1.88m
Low01:09
13:34
1.73m
1.68m