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
08-10-2026 06:2011.380.28
 Next HWNext LW
17:41, 12.74 11:55, 2
Date Highest 2026 Date Lowest 2026
29-09 14.09m 21-03 0.33m
Time (GMT)ElevationResidual
08-11-2025 00:006.54-0.18
07-11-2025 23:506.87-0.15
07-11-2025 23:407.21-0.11
07-11-2025 23:307.55-0.09
07-11-2025 23:207.91-0.06
07-11-2025 23:108.27-0.04
07-11-2025 23:008.63-0.05
07-11-2025 22:509.01-0.06
07-11-2025 22:409.4-0.08
07-11-2025 22:309.82-0.09
07-11-2025 22:2010.25-0.11
07-11-2025 22:1010.71-0.09
07-11-2025 22:0011.2-0.06
07-11-2025 21:5011.68-0.02
07-11-2025 21:4012.160.03
07-11-2025 21:3012.630.1
07-11-2025 21:2013.030.14
07-11-2025 21:1013.410.22
07-11-2025 21:0013.670.22
07-11-2025 20:5013.90.27
07-11-2025 20:4014.070.33
07-11-2025 20:3014.130.36
07-11-2025 20:2014.110.38
07-11-2025 20:1013.980.37
07-11-2025 20:0013.780.36
07-11-2025 19:5013.520.36
07-11-2025 19:4013.260.41
07-11-2025 19:3012.920.45
07-11-2025 19:2012.540.48
07-11-2025 19:1012.080.48
07-11-2025 19:0011.620.5
07-11-2025 18:5011.110.5
07-11-2025 18:4010.580.49
07-11-2025 18:3010.030.47
07-11-2025 18:209.440.41
07-11-2025 18:108.840.35
07-11-2025 18:008.260.31
07-11-2025 17:507.690.27
07-11-2025 17:407.130.26
07-11-2025 17:306.60.26
07-11-2025 17:206.060.25
07-11-2025 17:105.610.33
07-11-2025 17:005.170.41
07-11-2025 16:504.710.46
07-11-2025 16:404.240.49
07-11-2025 16:303.720.45
07-11-2025 16:203.20.39
07-11-2025 16:102.720.34
07-11-2025 16:002.310.32
07-11-2025 15:501.970.33
07-11-2025 15:401.470.14
07-11-2025 15:301.05-0.04
07-11-2025 15:200.950.03
07-11-2025 15:100.980.19
07-11-2025 15:001.090.35
07-11-2025 14:501.230.48
07-11-2025 14:401.370.55
07-11-2025 14:301.560.6
07-11-2025 14:201.750.61
07-11-2025 14:101.930.54
07-11-2025 14:002.150.48
07-11-2025 13:502.390.39
07-11-2025 13:402.630.29
07-11-2025 13:302.880.18
07-11-2025 13:203.160.07
07-11-2025 13:103.46-0.01
07-11-2025 13:003.75-0.09
07-11-2025 12:504.06-0.16
07-11-2025 12:404.4-0.18
07-11-2025 12:304.7-0.23
07-11-2025 12:205.03-0.23
07-11-2025 12:105.34-0.24
07-11-2025 12:005.67-0.22
07-11-2025 11:506-0.19
07-11-2025 11:406.32-0.17
07-11-2025 11:306.66-0.13
07-11-2025 11:206.99-0.1
07-11-2025 11:107.34-0.08
07-11-2025 11:007.67-0.08
07-11-2025 10:508.03-0.07
07-11-2025 10:408.39-0.1
07-11-2025 10:308.76-0.14
07-11-2025 10:209.12-0.2
07-11-2025 10:109.51-0.26
07-11-2025 10:009.93-0.31
07-11-2025 09:5010.37-0.35
07-11-2025 09:4010.85-0.36
07-11-2025 09:3011.34-0.34
07-11-2025 09:2011.81-0.33
07-11-2025 09:1012.3-0.27
07-11-2025 09:0012.74-0.23
07-11-2025 08:5013.15-0.17
07-11-2025 08:4013.48-0.13
07-11-2025 08:3013.71-0.11
07-11-2025 08:2013.94-0.03
07-11-2025 08:1014.060.02
07-11-2025 08:0014.090.07
07-11-2025 07:5014.020.09
07-11-2025 07:4013.870.1
07-11-2025 07:3013.650.13
07-11-2025 07:2013.40.19
07-11-2025 07:1013.090.25
07-11-2025 07:0012.720.29
07-11-2025 06:5012.30.33
07-11-2025 06:4011.860.39
07-11-2025 06:3011.380.43
07-11-2025 06:2010.860.46
07-11-2025 06:1010.310.46
07-11-2025 06:009.720.43
07-11-2025 05:509.120.4
07-11-2025 05:408.520.37
07-11-2025 05:307.920.34
07-11-2025 05:207.320.3
07-11-2025 05:106.780.33
07-11-2025 05:006.190.31
07-11-2025 04:505.680.36
07-11-2025 04:405.20.43
07-11-2025 04:304.710.48
07-11-2025 04:204.210.51
07-11-2025 04:103.680.48
07-11-2025 04:003.120.41
07-11-2025 03:502.630.38
07-11-2025 03:402.220.38
07-11-2025 03:301.820.35
07-11-2025 03:201.240.1
07-11-2025 03:100.83-0.06
07-11-2025 03:000.750.07
07-11-2025 02:500.80.25
07-11-2025 02:400.920.43
07-11-2025 02:301.070.58
07-11-2025 02:201.230.68
07-11-2025 02:101.420.74
07-11-2025 02:001.620.75
07-11-2025 01:501.820.71
07-11-2025 01:402.060.66
07-11-2025 01:302.270.54
07-11-2025 01:202.520.44
07-11-2025 01:102.750.29
07-11-2025 01:003.040.19
07-11-2025 00:503.360.12
07-11-2025 00:403.680.04
07-11-2025 00:304.01-0.01
07-11-2025 00:204.34-0.06
07-11-2025 00:104.66-0.12