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
14-03-2026 22:203.75-0.93
 Next HWNext LW
04:17, 9.61 10:58, 4.02
Date Highest 2026 Date Lowest 2026
04-02 14.02m 06-03 0.49m

Second Severn Crossing Predicted Tide Table (Chart Datum)

14-03-202615-03-202616-03-2026
 Time (GMT)Height Time (GMT)Height Time (GMT)Height
High02:43
15:31
8.97m
9.06m
High04:17
16:51
9.61m
9.94m
High05:21
17:48
10.72m
11.13m
Low08:46
22:03
4.66m
4.66m
Low10:58
23:33
4.02m
3.71m
Low12:03
3.00m
17-03-202618-03-202619-03-2026
 Time (GMT)Height Time (GMT)Height Time (GMT)Height
High06:11
18:34
11.91m
12.30m
High06:53
19:14
12.94m
13.22m
High07:33
19:52
13.65m
13.77m
Low00:31
12:56
2.63m
1.99m
Low01:19
13:42
1.65m
1.14m
Low02:03
14:24
0.91m
0.56m