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
20-01-2026 13:203.55-0.02
 Next HWNext LW
20:37, 12.57 15:02, 1.68
Date Highest 2026 Date Lowest 2026
06-01 13.49m 06-01 0.83m

Second Severn Crossing Predicted Tide Table (Chart Datum)

20-01-202621-01-202622-01-2026
 Time (GMT)Height Time (GMT)Height Time (GMT)Height
High08:17
20:37
12.71m
12.57m
High08:52
21:11
12.77m
12.58m
High09:26
21:45
12.69m
12.45m
Low02:39
15:02
1.80m
1.68m
Low03:17
15:39
1.73m
1.67m
Low03:52
16:14
1.80m
1.75m
23-01-202624-01-202625-01-2026
 Time (GMT)Height Time (GMT)Height Time (GMT)Height
High10:01
22:20
12.53m
12.26m
High10:38
22:58
12.33m
12.01m
High11:19
23:42
12.05m
11.69m
Low04:25
16:46
1.93m
1.86m
Low04:56
17:18
2.05m
1.97m
Low05:28
17:52
2.17m
2.12m