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
19-02-2025 22:0010.410.16
 Next HWNext LW
23:08, 10.93 05:31, 2.64
Date Highest 2025 Date Lowest 2025
01-02 13.75m 01-02 0.58m
Time (GMT)ElevationResidual
20-04-2024 00:003.12-0.64
19-04-2024 23:502.87-0.76
19-04-2024 23:402.65-0.87
19-04-2024 23:302.45-0.99
19-04-2024 23:202.32-1.06
19-04-2024 23:102.27-1.1
19-04-2024 23:002.29-1.08
19-04-2024 22:502.36-1.05
19-04-2024 22:402.46-1.01
19-04-2024 22:302.58-0.97
19-04-2024 22:202.74-0.92
19-04-2024 22:102.91-0.89
19-04-2024 22:003.1-0.84
19-04-2024 21:503.32-0.79
19-04-2024 21:403.55-0.73
19-04-2024 21:303.8-0.67
19-04-2024 21:204.03-0.63
19-04-2024 21:104.29-0.57
19-04-2024 21:004.55-0.52
19-04-2024 20:504.83-0.46
19-04-2024 20:405.09-0.41
19-04-2024 20:305.36-0.34
19-04-2024 20:205.65-0.28
19-04-2024 20:105.93-0.21
19-04-2024 20:006.22-0.14
19-04-2024 19:506.5-0.08
19-04-2024 19:406.79-0.02
19-04-2024 19:307.090.05
19-04-2024 19:207.380.1
19-04-2024 19:107.680.17
19-04-2024 19:007.990.24
19-04-2024 18:508.30.3
19-04-2024 18:408.60.36
19-04-2024 18:308.920.44
19-04-2024 18:209.210.49
19-04-2024 18:109.510.56
19-04-2024 18:009.810.65
19-04-2024 17:5010.10.74
19-04-2024 17:4010.360.82
19-04-2024 17:3010.550.85
19-04-2024 17:2010.720.89
19-04-2024 17:1010.850.92
19-04-2024 17:0010.930.92
19-04-2024 16:5010.980.93
19-04-2024 16:4010.970.91
19-04-2024 16:3010.920.9
19-04-2024 16:2010.840.87
19-04-2024 16:1010.730.86
19-04-2024 16:0010.60.84
19-04-2024 15:5010.420.81
19-04-2024 15:4010.250.81
19-04-2024 15:3010.050.81
19-04-2024 15:209.820.8
19-04-2024 15:109.580.78
19-04-2024 15:009.330.77
19-04-2024 14:509.060.75
19-04-2024 14:408.750.71
19-04-2024 14:308.470.68
19-04-2024 14:208.170.65
19-04-2024 14:107.870.61
19-04-2024 14:007.560.56
19-04-2024 13:507.260.52
19-04-2024 13:406.970.49
19-04-2024 13:306.690.46
19-04-2024 13:206.40.41
19-04-2024 13:106.110.36
19-04-2024 13:005.830.32
19-04-2024 12:505.550.26
19-04-2024 12:405.290.23
19-04-2024 12:305.020.16
19-04-2024 12:204.750.09
19-04-2024 12:104.490.03
19-04-2024 12:004.23-0.07
19-04-2024 11:503.95-0.19
19-04-2024 11:403.72-0.29
19-04-2024 11:303.49-0.41
19-04-2024 11:203.29-0.5
19-04-2024 11:103.12-0.61
19-04-2024 11:002.97-0.71
19-04-2024 10:502.85-0.81
19-04-2024 10:402.77-0.9
19-04-2024 10:302.76-0.93
19-04-2024 10:202.8-0.94
19-04-2024 10:102.87-0.94
19-04-2024 10:002.97-0.93
19-04-2024 09:503.09-0.93
19-04-2024 09:403.24-0.9
19-04-2024 09:303.42-0.86
19-04-2024 09:203.6-0.83
19-04-2024 09:103.81-0.77
19-04-2024 09:004.03-0.71
19-04-2024 08:504.25-0.66
19-04-2024 08:404.47-0.61
19-04-2024 08:304.69-0.56
19-04-2024 08:204.93-0.49
19-04-2024 08:105.18-0.41
19-04-2024 08:005.44-0.32
19-04-2024 07:505.69-0.25
19-04-2024 07:405.96-0.16
19-04-2024 07:306.22-0.07
19-04-2024 07:206.47-0.01
19-04-2024 07:106.730.06
19-04-2024 07:006.990.12
19-04-2024 06:507.260.18
19-04-2024 06:407.520.23
19-04-2024 06:307.780.29
19-04-2024 06:208.050.33
19-04-2024 06:108.320.38
19-04-2024 06:008.560.4
19-04-2024 05:508.810.44
19-04-2024 05:409.070.48
19-04-2024 05:309.30.5
19-04-2024 05:209.520.54
19-04-2024 05:109.730.57
19-04-2024 05:009.910.61
19-04-2024 04:5010.080.65
19-04-2024 04:4010.210.67
19-04-2024 04:3010.320.7
19-04-2024 04:2010.410.75
19-04-2024 04:1010.460.79
19-04-2024 04:0010.490.82
19-04-2024 03:5010.490.86
19-04-2024 03:4010.440.88
19-04-2024 03:3010.380.91
19-04-2024 03:2010.290.93
19-04-2024 03:1010.170.95
19-04-2024 03:0010.030.96
19-04-2024 02:509.890.99
19-04-2024 02:409.711
19-04-2024 02:309.531
19-04-2024 02:209.310.99
19-04-2024 02:109.110.99
19-04-2024 02:008.880.97
19-04-2024 01:508.620.92
19-04-2024 01:408.390.91
19-04-2024 01:308.120.85
19-04-2024 01:207.850.8
19-04-2024 01:107.580.74
19-04-2024 01:007.310.68
19-04-2024 00:507.030.61
19-04-2024 00:406.770.56
19-04-2024 00:306.490.49
19-04-2024 00:206.220.42
19-04-2024 00:105.940.34