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
07-09-2026 15:5010.670.23
 Next HWNext LW
04:31, 10.6 22:35, 3.6
Date Highest 2026 Date Lowest 2026
04-02 14.02m 21-03 0.33m

Second Severn Crossing Predicted Tide Table (Chart Datum)

07-09-202608-09-202609-09-2026
 Time (GMT)Height Time (GMT)Height Time (GMT)Height
High03:05
15:45
9.97m
10.45m
High04:31
17:03
10.60m
11.41m
High05:40
18:04
11.69m
12.57m
Low09:34
22:35
4.06m
3.60m
Low11:10
23:54
3.30m
2.60m
Low12:20
2.25m
10-09-202611-09-202612-09-2026
 Time (GMT)Height Time (GMT)Height Time (GMT)Height
High06:35
18:53
12.79m
13.51m
High07:19
19:34
13.58m
14.04m
High07:57
20:11
13.93m
14.11m
Low00:55
13:15
1.57m
1.32m
Low01:44
14:00
0.83m
0.73m
Low02:25
14:39
0.49m
0.56m