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
15-02-2026 22:504.640.17
 Next HWNext LW
06:41, 11.9 00:56, 2.6
Date Highest 2026 Date Lowest 2026
04-02 14.02m 03-02 0.75m
Time (GMT)ElevationResidual
07-12-2025 00:006.14-0.27
06-12-2025 23:506.46-0.26
06-12-2025 23:406.79-0.24
06-12-2025 23:307.14-0.21
06-12-2025 23:207.48-0.18
06-12-2025 23:107.82-0.17
06-12-2025 23:008.18-0.14
06-12-2025 22:508.52-0.15
06-12-2025 22:408.88-0.15
06-12-2025 22:309.24-0.17
06-12-2025 22:209.64-0.15
06-12-2025 22:1010.07-0.12
06-12-2025 22:0010.49-0.11
06-12-2025 21:5010.96-0.05
06-12-2025 21:4011.420.03
06-12-2025 21:3011.910.13
06-12-2025 21:2012.320.19
06-12-2025 21:1012.680.23
06-12-2025 21:00130.27
06-12-2025 20:5013.250.29
06-12-2025 20:4013.460.33
06-12-2025 20:3013.620.38
06-12-2025 20:2013.680.4
06-12-2025 20:1013.660.41
06-12-2025 20:0013.540.38
06-12-2025 19:5013.40.41
06-12-2025 19:4013.160.41
06-12-2025 19:3012.890.43
06-12-2025 19:2012.610.5
06-12-2025 19:1012.240.52
06-12-2025 19:0011.830.55
06-12-2025 18:5011.390.57
06-12-2025 18:4010.950.62
06-12-2025 18:3010.490.67
06-12-2025 18:2010.010.69
06-12-2025 18:109.490.7
06-12-2025 18:008.960.67
06-12-2025 17:508.410.64
06-12-2025 17:407.890.62
06-12-2025 17:307.390.62
06-12-2025 17:206.910.63
06-12-2025 17:106.440.65
06-12-2025 17:005.980.66
06-12-2025 16:505.570.71
06-12-2025 16:405.150.75
06-12-2025 16:304.730.76
06-12-2025 16:204.250.7
06-12-2025 16:103.760.62
06-12-2025 16:003.290.53
06-12-2025 15:502.890.47
06-12-2025 15:402.550.45
06-12-2025 15:302.20.36
06-12-2025 15:201.810.21
06-12-2025 15:101.590.17
06-12-2025 15:001.530.23
06-12-2025 14:501.570.35
06-12-2025 14:401.650.45
06-12-2025 14:301.770.52
06-12-2025 14:201.930.59
06-12-2025 14:102.110.62
06-12-2025 14:002.330.65
06-12-2025 13:502.530.62
06-12-2025 13:402.740.56
06-12-2025 13:302.980.5
06-12-2025 13:203.230.43
06-12-2025 13:103.50.37
06-12-2025 13:003.760.27
06-12-2025 12:504.070.23
06-12-2025 12:404.370.18
06-12-2025 12:304.650.12
06-12-2025 12:204.950.08
06-12-2025 12:105.280.08
06-12-2025 12:005.570.04
06-12-2025 11:505.890.04
06-12-2025 11:406.190.03
06-12-2025 11:306.50.03
06-12-2025 11:206.80.03
06-12-2025 11:107.130.04
06-12-2025 11:007.470.07
06-12-2025 10:507.830.1
06-12-2025 10:408.180.12
06-12-2025 10:308.540.12
06-12-2025 10:208.90.11
06-12-2025 10:109.280.11
06-12-2025 10:009.630.05
06-12-2025 09:5010.030.04
06-12-2025 09:4010.460.04
06-12-2025 09:3010.870.03
06-12-2025 09:2011.320.05
06-12-2025 09:1011.740.07
06-12-2025 09:0012.220.15
06-12-2025 08:5012.660.22
06-12-2025 08:4013.010.24
06-12-2025 08:3013.320.28
06-12-2025 08:2013.620.36
06-12-2025 08:1013.790.36
06-12-2025 08:0013.930.4
06-12-2025 07:5014.030.48
06-12-2025 07:4014.070.56
06-12-2025 07:3014.020.63
06-12-2025 07:2013.870.67
06-12-2025 07:1013.660.71
06-12-2025 07:0013.390.75
06-12-2025 06:5013.090.82
06-12-2025 06:4012.760.91
06-12-2025 06:3012.390.99
06-12-2025 06:2011.951.02
06-12-2025 06:1011.471.05
06-12-2025 06:0011.021.11
06-12-2025 05:5010.531.15
06-12-2025 05:4010.041.19
06-12-2025 05:309.51.18
06-12-2025 05:208.941.16
06-12-2025 05:108.391.13
06-12-2025 05:007.861.11
06-12-2025 04:507.351.12
06-12-2025 04:406.841.12
06-12-2025 04:306.351.12
06-12-2025 04:205.861.11
06-12-2025 04:105.431.15
06-12-2025 04:004.991.17
06-12-2025 03:504.481.1
06-12-2025 03:403.910.95
06-12-2025 03:303.390.82
06-12-2025 03:202.940.72
06-12-2025 03:102.520.61
06-12-2025 03:002.030.4
06-12-2025 02:501.60.18
06-12-2025 02:401.410.16
06-12-2025 02:301.40.27
06-12-2025 02:201.490.4
06-12-2025 02:101.590.5
06-12-2025 02:001.730.58
06-12-2025 01:501.910.64
06-12-2025 01:402.10.67
06-12-2025 01:302.30.65
06-12-2025 01:202.510.62
06-12-2025 01:102.740.56
06-12-2025 01:003.010.51
06-12-2025 00:503.270.45
06-12-2025 00:403.580.41
06-12-2025 00:303.860.32
06-12-2025 00:204.160.27
06-12-2025 00:104.460.21