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
19-01-2026 11:006.54-0.16
 Next HWNext LW
20:01, 12.39 14:22, 1.84
Date Highest 2026 Date Lowest 2026
06-01 13.49m 06-01 0.83m
Time (GMT)ElevationResidual
07-11-2025 00:004.99-0.13
06-11-2025 23:505.33-0.14
06-11-2025 23:405.67-0.13
06-11-2025 23:306.01-0.12
06-11-2025 23:206.34-0.11
06-11-2025 23:106.68-0.1
06-11-2025 23:007.04-0.07
06-11-2025 22:507.38-0.07
06-11-2025 22:407.76-0.06
06-11-2025 22:308.12-0.07
06-11-2025 22:208.49-0.1
06-11-2025 22:108.86-0.15
06-11-2025 22:009.25-0.21
06-11-2025 21:509.65-0.27
06-11-2025 21:4010.09-0.31
06-11-2025 21:3010.54-0.34
06-11-2025 21:2011.01-0.35
06-11-2025 21:1011.52-0.32
06-11-2025 21:0012-0.31
06-11-2025 20:5012.49-0.24
06-11-2025 20:4012.95-0.17
06-11-2025 20:3013.36-0.11
06-11-2025 20:2013.72-0.02
06-11-2025 20:1013.96-0
06-11-2025 20:0014.190.09
06-11-2025 19:5014.410.24
06-11-2025 19:4014.470.31
06-11-2025 19:3014.470.41
06-11-2025 19:2014.30.41
06-11-2025 19:1014.090.44
06-11-2025 19:0013.810.47
06-11-2025 18:5013.490.53
06-11-2025 18:4012.990.44
06-11-2025 18:3012.590.5
06-11-2025 18:2012.130.54
06-11-2025 18:1011.630.56
06-11-2025 18:0011.120.59
06-11-2025 17:5010.560.59
06-11-2025 17:409.970.56
06-11-2025 17:309.360.52
06-11-2025 17:208.740.47
06-11-2025 17:108.140.44
06-11-2025 17:007.540.41
06-11-2025 16:506.980.42
06-11-2025 16:406.40.41
06-11-2025 16:305.850.41
06-11-2025 16:205.390.5
06-11-2025 16:104.910.56
06-11-2025 16:004.430.61
06-11-2025 15:503.920.6
06-11-2025 15:403.380.55
06-11-2025 15:302.860.47
06-11-2025 15:202.40.42
06-11-2025 15:102.080.47
06-11-2025 15:001.620.33
06-11-2025 14:501.130.1
06-11-2025 14:400.890.06
06-11-2025 14:300.880.19
06-11-2025 14:200.980.36
06-11-2025 14:101.10.49
06-11-2025 14:001.240.57
06-11-2025 13:501.40.62
06-11-2025 13:401.580.63
06-11-2025 13:301.80.61
06-11-2025 13:202.010.56
06-11-2025 13:102.220.47
06-11-2025 13:002.450.37
06-11-2025 12:502.690.26
06-11-2025 12:402.950.16
06-11-2025 12:303.240.08
06-11-2025 12:203.540.02
06-11-2025 12:103.880
06-11-2025 12:004.18-0.06
06-11-2025 11:504.51-0.07
06-11-2025 11:404.81-0.11
06-11-2025 11:305.17-0.08
06-11-2025 11:205.47-0.1
06-11-2025 11:105.78-0.11
06-11-2025 11:006.12-0.08
06-11-2025 10:506.45-0.08
06-11-2025 10:406.77-0.09
06-11-2025 10:307.11-0.09
06-11-2025 10:207.47-0.09
06-11-2025 10:107.81-0.14
06-11-2025 10:008.16-0.2
06-11-2025 09:508.52-0.26
06-11-2025 09:408.87-0.36
06-11-2025 09:309.27-0.43
06-11-2025 09:209.69-0.5
06-11-2025 09:1010.1-0.58
06-11-2025 09:0010.57-0.6
06-11-2025 08:5011.04-0.62
06-11-2025 08:4011.51-0.62
06-11-2025 08:3011.98-0.6
06-11-2025 08:2012.46-0.53
06-11-2025 08:1012.85-0.49
06-11-2025 08:0013.24-0.4
06-11-2025 07:5013.53-0.36
06-11-2025 07:4013.77-0.28
06-11-2025 07:3013.97-0.17
06-11-2025 07:2014.07-0.08
06-11-2025 07:1014.08-0
06-11-2025 07:0013.970.04
06-11-2025 06:5013.80.09
06-11-2025 06:4013.570.15
06-11-2025 06:3013.320.25
06-11-2025 06:20130.34
06-11-2025 06:1012.620.41
06-11-2025 06:0012.20.49
06-11-2025 05:5011.730.54
06-11-2025 05:4011.250.61
06-11-2025 05:3010.730.64
06-11-2025 05:2010.150.64
06-11-2025 05:109.550.61
06-11-2025 05:008.920.57
06-11-2025 04:508.330.56
06-11-2025 04:407.720.53
06-11-2025 04:307.110.49
06-11-2025 04:206.540.5
06-11-2025 04:105.960.48
06-11-2025 04:005.470.55
06-11-2025 03:504.980.61
06-11-2025 03:404.50.67
06-11-2025 03:303.980.66
06-11-2025 03:203.430.6
06-11-2025 03:102.880.5
06-11-2025 03:002.380.43
06-11-2025 02:502.060.49
06-11-2025 02:401.560.32
06-11-2025 02:301.020.05
06-11-2025 02:200.810.06
06-11-2025 02:100.840.24
06-11-2025 02:000.910.4
06-11-2025 01:501.050.56
06-11-2025 01:401.210.68
06-11-2025 01:301.370.74
06-11-2025 01:201.560.78
06-11-2025 01:101.760.77
06-11-2025 01:001.970.73
06-11-2025 00:502.20.67
06-11-2025 00:402.440.59
06-11-2025 00:302.680.49
06-11-2025 00:202.940.39
06-11-2025 00:103.260.35