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

 

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Latest Tide Data (Predicted Tide Table)

Time (GMT)ElevationResidual
07-10-2026 13:105.36-0.2
 Next HWNext LW
16:44, 11.68 23:31, 2.29
Date Highest 2026 Date Lowest 2026
29-09 14.09m 21-03 0.33m
Time (GMT)ElevationResidual
18-08-2026 00:0010.160.17
17-08-2026 23:5010.550.15
17-08-2026 23:4010.940.15
17-08-2026 23:3011.320.16
17-08-2026 23:2011.710.19
17-08-2026 23:1012.020.18
17-08-2026 23:0012.270.15
17-08-2026 22:5012.510.16
17-08-2026 22:4012.680.17
17-08-2026 22:3012.780.16
17-08-2026 22:2012.790.12
17-08-2026 22:1012.70.04
17-08-2026 22:0012.58-0
17-08-2026 21:5012.39-0.06
17-08-2026 21:4012.17-0.09
17-08-2026 21:3011.93-0.09
17-08-2026 21:2011.64-0.1
17-08-2026 21:1011.32-0.11
17-08-2026 21:0010.96-0.12
17-08-2026 20:5010.59-0.12
17-08-2026 20:4010.2-0.13
17-08-2026 20:309.78-0.15
17-08-2026 20:209.34-0.18
17-08-2026 20:108.89-0.21
17-08-2026 20:008.41-0.26
17-08-2026 19:507.94-0.3
17-08-2026 19:407.47-0.33
17-08-2026 19:307.04-0.31
17-08-2026 19:206.6-0.3
17-08-2026 19:106.18-0.27
17-08-2026 19:005.76-0.23
17-08-2026 18:505.4-0.14
17-08-2026 18:404.99-0.1
17-08-2026 18:304.6-0.04
17-08-2026 18:204.13-0.07
17-08-2026 18:103.66-0.11
17-08-2026 18:003.16-0.22
17-08-2026 17:502.75-0.25
17-08-2026 17:402.37-0.3
17-08-2026 17:301.9-0.47
17-08-2026 17:201.49-0.63
17-08-2026 17:101.35-0.57
17-08-2026 17:001.38-0.4
17-08-2026 16:501.48-0.21
17-08-2026 16:401.65-0.01
17-08-2026 16:301.790.1
17-08-2026 16:201.940.19
17-08-2026 16:102.190.31
17-08-2026 16:002.390.33
17-08-2026 15:502.590.33
17-08-2026 15:402.830.31
17-08-2026 15:303.080.29
17-08-2026 15:203.340.26
17-08-2026 15:103.620.23
17-08-2026 15:003.90.19
17-08-2026 14:504.210.17
17-08-2026 14:404.490.14
17-08-2026 14:304.780.11
17-08-2026 14:205.080.11
17-08-2026 14:105.380.1
17-08-2026 14:005.670.1
17-08-2026 13:505.980.13
17-08-2026 13:406.280.15
17-08-2026 13:306.60.19
17-08-2026 13:206.920.23
17-08-2026 13:107.250.27
17-08-2026 13:007.580.3
17-08-2026 12:507.910.33
17-08-2026 12:408.260.34
17-08-2026 12:308.640.38
17-08-2026 12:208.990.36
17-08-2026 12:109.390.38
17-08-2026 12:009.760.35
17-08-2026 11:5010.160.34
17-08-2026 11:4010.540.31
17-08-2026 11:3010.930.28
17-08-2026 11:2011.350.3
17-08-2026 11:1011.740.32
17-08-2026 11:0012.070.3
17-08-2026 10:5012.360.29
17-08-2026 10:4012.610.28
17-08-2026 10:3012.80.27
17-08-2026 10:2012.90.23
17-08-2026 10:1012.90.15
17-08-2026 10:0012.820.07
17-08-2026 09:5012.690
17-08-2026 09:4012.48-0.08
17-08-2026 09:3012.27-0.09
17-08-2026 09:2012-0.11
17-08-2026 09:1011.68-0.13
17-08-2026 09:0011.3-0.16
17-08-2026 08:5010.91-0.17
17-08-2026 08:4010.52-0.16
17-08-2026 08:3010.1-0.15
17-08-2026 08:209.66-0.15
17-08-2026 08:109.19-0.17
17-08-2026 08:008.7-0.2
17-08-2026 07:508.21-0.23
17-08-2026 07:407.74-0.25
17-08-2026 07:307.27-0.25
17-08-2026 07:206.82-0.25
17-08-2026 07:106.38-0.22
17-08-2026 07:005.95-0.2
17-08-2026 06:505.54-0.15
17-08-2026 06:405.17-0.07
17-08-2026 06:304.77-0.01
17-08-2026 06:204.340.01
17-08-2026 06:103.89-0.01
17-08-2026 06:003.42-0.07
17-08-2026 05:502.94-0.14
17-08-2026 05:402.52-0.2
17-08-2026 05:302.2-0.18
17-08-2026 05:201.73-0.36
17-08-2026 05:101.28-0.56
17-08-2026 05:001.16-0.48
17-08-2026 04:501.19-0.3
17-08-2026 04:401.29-0.12
17-08-2026 04:301.430.05
17-08-2026 04:201.590.17
17-08-2026 04:101.770.26
17-08-2026 04:001.970.31
17-08-2026 03:502.150.3
17-08-2026 03:402.40.31
17-08-2026 03:302.620.26
17-08-2026 03:202.860.2
17-08-2026 03:103.110.13
17-08-2026 03:003.390.06
17-08-2026 02:503.690.02
17-08-2026 02:403.98-0.04
17-08-2026 02:304.27-0.09
17-08-2026 02:204.57-0.13
17-08-2026 02:104.88-0.14
17-08-2026 02:005.19-0.14
17-08-2026 01:505.49-0.13
17-08-2026 01:405.81-0.11
17-08-2026 01:306.12-0.08
17-08-2026 01:206.44-0.02
17-08-2026 01:106.760.02
17-08-2026 01:007.090.08
17-08-2026 00:507.420.12
17-08-2026 00:407.760.17
17-08-2026 00:308.10.19
17-08-2026 00:208.450.2
17-08-2026 00:108.820.22