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
11-05-2026 15:208.76-0.17
 Next HWNext LW
02:35, 10.14 19:52, 3.99
Date Highest 2026 Date Lowest 2026
04-02 14.02m 21-03 0.33m
Time (GMT)ElevationResidual
15-07-2024 00:0010.1-0.04
14-07-2024 23:509.99-0.03
14-07-2024 23:409.86-0.01
14-07-2024 23:309.710.01
14-07-2024 23:209.540.03
14-07-2024 23:109.370.07
14-07-2024 23:009.180.11
14-07-2024 22:508.980.14
14-07-2024 22:408.790.2
14-07-2024 22:308.590.26
14-07-2024 22:208.360.29
14-07-2024 22:108.120.33
14-07-2024 22:007.890.36
14-07-2024 21:507.650.4
14-07-2024 21:407.410.43
14-07-2024 21:307.160.46
14-07-2024 21:206.90.48
14-07-2024 21:106.660.51
14-07-2024 21:006.40.53
14-07-2024 20:506.160.55
14-07-2024 20:405.910.56
14-07-2024 20:305.660.56
14-07-2024 20:205.410.56
14-07-2024 20:105.170.55
14-07-2024 20:004.910.52
14-07-2024 19:504.660.47
14-07-2024 19:404.380.38
14-07-2024 19:304.110.28
14-07-2024 19:203.870.19
14-07-2024 19:103.670.12
14-07-2024 19:003.490.04
14-07-2024 18:503.33-0.05
14-07-2024 18:403.24-0.1
14-07-2024 18:303.2-0.12
14-07-2024 18:203.23-0.11
14-07-2024 18:103.29-0.08
14-07-2024 18:003.39-0.05
14-07-2024 17:503.52-0.02
14-07-2024 17:403.66-0
14-07-2024 17:303.830.03
14-07-2024 17:2040.03
14-07-2024 17:104.20.04
14-07-2024 17:004.40.04
14-07-2024 16:504.610.04
14-07-2024 16:404.830.03
14-07-2024 16:305.050.01
14-07-2024 16:205.27-0.02
14-07-2024 16:105.5-0.03
14-07-2024 16:005.74-0.06
14-07-2024 15:505.97-0.08
14-07-2024 15:406.22-0.09
14-07-2024 15:306.45-0.13
14-07-2024 15:206.7-0.14
14-07-2024 15:106.95-0.15
14-07-2024 15:007.21-0.16
14-07-2024 14:507.46-0.18
14-07-2024 14:407.71-0.18
14-07-2024 14:307.98-0.18
14-07-2024 14:208.22-0.19
14-07-2024 14:108.48-0.18
14-07-2024 14:008.74-0.16
14-07-2024 13:509-0.13
14-07-2024 13:409.24-0.11
14-07-2024 13:309.49-0.06
14-07-2024 13:209.71-0.03
14-07-2024 13:109.910.02
14-07-2024 13:0010.080.04
14-07-2024 12:5010.20.05
14-07-2024 12:4010.30.06
14-07-2024 12:3010.370.07
14-07-2024 12:2010.40.07
14-07-2024 12:1010.40.07
14-07-2024 12:0010.360.07
14-07-2024 11:5010.290.06
14-07-2024 11:4010.20.06
14-07-2024 11:3010.090.07
14-07-2024 11:209.940.06
14-07-2024 11:109.780.07
14-07-2024 11:009.610.08
14-07-2024 10:509.410.08
14-07-2024 10:409.190.09
14-07-2024 10:308.980.11
14-07-2024 10:208.740.13
14-07-2024 10:108.50.15
14-07-2024 10:008.260.17
14-07-2024 09:507.990.18
14-07-2024 09:407.730.2
14-07-2024 09:307.460.22
14-07-2024 09:207.190.23
14-07-2024 09:106.930.26
14-07-2024 09:006.680.3
14-07-2024 08:506.430.33
14-07-2024 08:406.180.38
14-07-2024 08:305.930.41
14-07-2024 08:205.670.43
14-07-2024 08:105.40.44
14-07-2024 08:005.130.44
14-07-2024 07:504.870.43
14-07-2024 07:404.590.39
14-07-2024 07:304.290.32
14-07-2024 07:204.010.25
14-07-2024 07:103.730.15
14-07-2024 07:003.490.08
14-07-2024 06:503.28-0
14-07-2024 06:403.08-0.09
14-07-2024 06:302.94-0.15
14-07-2024 06:202.88-0.16
14-07-2024 06:102.9-0.12
14-07-2024 06:002.98-0.05
14-07-2024 05:503.080.01
14-07-2024 05:403.20.06
14-07-2024 05:303.360.11
14-07-2024 05:203.520.15
14-07-2024 05:103.70.19
14-07-2024 05:003.890.21
14-07-2024 04:504.10.23
14-07-2024 04:404.310.23
14-07-2024 04:304.530.23
14-07-2024 04:204.750.22
14-07-2024 04:104.980.21
14-07-2024 04:005.210.18
14-07-2024 03:505.440.16
14-07-2024 03:405.690.15
14-07-2024 03:305.940.12
14-07-2024 03:206.190.09
14-07-2024 03:106.430.06
14-07-2024 03:006.680.02
14-07-2024 02:506.95-0
14-07-2024 02:407.21-0.03
14-07-2024 02:307.48-0.06
14-07-2024 02:207.74-0.09
14-07-2024 02:108.01-0.11
14-07-2024 02:008.27-0.14
14-07-2024 01:508.54-0.16
14-07-2024 01:408.78-0.2
14-07-2024 01:309.04-0.21
14-07-2024 01:209.3-0.21
14-07-2024 01:109.55-0.2
14-07-2024 01:009.79-0.18
14-07-2024 00:5010.02-0.16
14-07-2024 00:4010.22-0.14
14-07-2024 00:3010.38-0.12
14-07-2024 00:2010.51-0.11
14-07-2024 00:1010.6-0.11