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
12-05-2025 17:309.980.14
 Next HWNext LW
19:20, 12.74 01:56, 1.19
Date Highest 2025 Date Lowest 2025
27-04 15.33m 31-03 0.03m
Time (GMT)ElevationResidual
26-04-2025 00:001.44-0.45
25-04-2025 23:501.59-0.36
25-04-2025 23:401.75-0.31
25-04-2025 23:301.93-0.26
25-04-2025 23:202.13-0.22
25-04-2025 23:102.35-0.18
25-04-2025 23:002.55-0.17
25-04-2025 22:502.79-0.14
25-04-2025 22:403.04-0.1
25-04-2025 22:303.3-0.07
25-04-2025 22:203.58-0.02
25-04-2025 22:103.880.04
25-04-2025 22:004.170.09
25-04-2025 21:504.470.14
25-04-2025 21:404.770.17
25-04-2025 21:305.060.19
25-04-2025 21:205.380.23
25-04-2025 21:105.660.22
25-04-2025 21:005.970.22
25-04-2025 20:506.280.21
25-04-2025 20:406.60.19
25-04-2025 20:306.910.16
25-04-2025 20:207.220.11
25-04-2025 20:107.560.06
25-04-2025 20:007.890.01
25-04-2025 19:508.24-0.05
25-04-2025 19:408.59-0.09
25-04-2025 19:308.97-0.12
25-04-2025 19:209.35-0.15
25-04-2025 19:109.73-0.17
25-04-2025 19:0010.11-0.18
25-04-2025 18:5010.48-0.18
25-04-2025 18:4010.85-0.15
25-04-2025 18:3011.22-0.09
25-04-2025 18:2011.54-0.06
25-04-2025 18:1011.84-0
25-04-2025 18:0012.090.05
25-04-2025 17:5012.270.08
25-04-2025 17:4012.370.09
25-04-2025 17:3012.420.09
25-04-2025 17:2012.380.06
25-04-2025 17:1012.290.04
25-04-2025 17:0012.130
25-04-2025 16:5011.93-0.03
25-04-2025 16:4011.72-0.02
25-04-2025 16:3011.470
25-04-2025 16:2011.16-0
25-04-2025 16:1010.830.01
25-04-2025 16:0010.480.03
25-04-2025 15:5010.120.05
25-04-2025 15:409.730.07
25-04-2025 15:309.330.08
25-04-2025 15:208.910.1
25-04-2025 15:108.450.08
25-04-2025 15:0080.06
25-04-2025 14:507.550.04
25-04-2025 14:407.120.05
25-04-2025 14:306.690.06
25-04-2025 14:206.250.04
25-04-2025 14:105.810.03
25-04-2025 14:005.440.07
25-04-2025 13:505.060.09
25-04-2025 13:404.660.08
25-04-2025 13:304.230.02
25-04-2025 13:203.78-0.08
25-04-2025 13:103.33-0.2
25-04-2025 13:002.87-0.37
25-04-2025 12:502.48-0.49
25-04-2025 12:402.17-0.56
25-04-2025 12:301.87-0.66
25-04-2025 12:201.54-0.83
25-04-2025 12:101.34-0.91
25-04-2025 12:001.28-0.88
25-04-2025 11:501.33-0.78
25-04-2025 11:401.41-0.69
25-04-2025 11:301.53-0.6
25-04-2025 11:201.69-0.49
25-04-2025 11:101.83-0.43
25-04-2025 11:002-0.37
25-04-2025 10:502.2-0.3
25-04-2025 10:402.41-0.24
25-04-2025 10:302.63-0.19
25-04-2025 10:202.83-0.16
25-04-2025 10:103.1-0.08
25-04-2025 10:003.380.01
25-04-2025 09:503.650.07
25-04-2025 09:403.950.14
25-04-2025 09:304.240.21
25-04-2025 09:204.520.25
25-04-2025 09:104.810.3
25-04-2025 09:005.10.32
25-04-2025 08:505.410.36
25-04-2025 08:405.720.37
25-04-2025 08:306.010.36
25-04-2025 08:206.320.35
25-04-2025 08:106.620.32
25-04-2025 08:006.940.29
25-04-2025 07:507.260.25
25-04-2025 07:407.580.2
25-04-2025 07:307.920.16
25-04-2025 07:208.260.11
25-04-2025 07:108.610.08
25-04-2025 07:008.980.06
25-04-2025 06:509.340.04
25-04-2025 06:409.710.04
25-04-2025 06:3010.070.04
25-04-2025 06:2010.420.05
25-04-2025 06:1010.760.07
25-04-2025 06:0011.110.13
25-04-2025 05:5011.370.14
25-04-2025 05:4011.630.18
25-04-2025 05:3011.850.23
25-04-2025 05:2011.990.24
25-04-2025 05:1012.080.24
25-04-2025 05:0012.110.23
25-04-2025 04:5012.070.21
25-04-2025 04:4011.970.17
25-04-2025 04:3011.820.13
25-04-2025 04:2011.640.1
25-04-2025 04:1011.430.09
25-04-2025 04:0011.20.1
25-04-2025 03:5010.930.09
25-04-2025 03:4010.620.09
25-04-2025 03:3010.290.08
25-04-2025 03:209.970.1
25-04-2025 03:109.610.1
25-04-2025 03:009.250.1
25-04-2025 02:508.860.09
25-04-2025 02:408.470.09
25-04-2025 02:308.060.06
25-04-2025 02:207.650.03
25-04-2025 02:107.240.01
25-04-2025 02:006.850
25-04-2025 01:506.480.01
25-04-2025 01:406.09-0.02
25-04-2025 01:305.71-0.04
25-04-2025 01:205.38-0.01
25-04-2025 01:105.05-0.01
25-04-2025 01:004.7-0.04
25-04-2025 00:504.33-0.11
25-04-2025 00:403.97-0.19
25-04-2025 00:303.59-0.31
25-04-2025 00:203.24-0.44
25-04-2025 00:102.89-0.59