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 01:204.390.09
 Next HWNext LW
05:55, 10.92 12:32, 2.91
Date Highest 2026 Date Lowest 2026
04-02 14.02m 03-02 0.75m
Time (GMT)ElevationResidual
15-12-2025 00:007.060.53
14-12-2025 23:506.820.58
14-12-2025 23:406.590.63
14-12-2025 23:306.370.68
14-12-2025 23:206.140.71
14-12-2025 23:105.920.75
14-12-2025 23:005.690.77
14-12-2025 22:505.460.77
14-12-2025 22:405.240.76
14-12-2025 22:305.020.74
14-12-2025 22:204.80.68
14-12-2025 22:104.590.62
14-12-2025 22:004.390.53
14-12-2025 21:504.20.44
14-12-2025 21:404.030.33
14-12-2025 21:303.880.22
14-12-2025 21:203.750.11
14-12-2025 21:103.660.02
14-12-2025 21:003.6-0.07
14-12-2025 20:503.6-0.11
14-12-2025 20:403.61-0.16
14-12-2025 20:303.67-0.17
14-12-2025 20:203.77-0.15
14-12-2025 20:103.9-0.13
14-12-2025 20:004.03-0.11
14-12-2025 19:504.19-0.06
14-12-2025 19:404.37-0.02
14-12-2025 19:304.550.02
14-12-2025 19:204.750.07
14-12-2025 19:104.940.09
14-12-2025 19:005.160.12
14-12-2025 18:505.370.13
14-12-2025 18:405.60.14
14-12-2025 18:305.830.14
14-12-2025 18:206.080.14
14-12-2025 18:106.320.12
14-12-2025 18:006.580.12
14-12-2025 17:506.820.08
14-12-2025 17:407.070.05
14-12-2025 17:307.340.02
14-12-2025 17:207.58-0.03
14-12-2025 17:107.84-0.06
14-12-2025 17:008.12-0.07
14-12-2025 16:508.38-0.08
14-12-2025 16:408.65-0.08
14-12-2025 16:308.92-0.08
14-12-2025 16:209.17-0.07
14-12-2025 16:109.42-0.05
14-12-2025 16:009.67-0.01
14-12-2025 15:509.90.03
14-12-2025 15:4010.10.06
14-12-2025 15:3010.270.08
14-12-2025 15:2010.420.1
14-12-2025 15:1010.540.11
14-12-2025 15:0010.630.13
14-12-2025 14:5010.680.14
14-12-2025 14:4010.720.16
14-12-2025 14:3010.70.15
14-12-2025 14:2010.670.16
14-12-2025 14:1010.60.16
14-12-2025 14:0010.50.16
14-12-2025 13:5010.380.15
14-12-2025 13:4010.230.16
14-12-2025 13:3010.070.16
14-12-2025 13:209.90.18
14-12-2025 13:109.690.17
14-12-2025 13:009.470.17
14-12-2025 12:509.240.17
14-12-2025 12:4090.18
14-12-2025 12:308.750.19
14-12-2025 12:208.490.2
14-12-2025 12:108.230.21
14-12-2025 12:007.980.24
14-12-2025 11:507.70.25
14-12-2025 11:407.440.28
14-12-2025 11:307.160.29
14-12-2025 11:206.90.32
14-12-2025 11:106.630.35
14-12-2025 11:006.370.37
14-12-2025 10:506.110.4
14-12-2025 10:405.850.41
14-12-2025 10:305.60.42
14-12-2025 10:205.360.42
14-12-2025 10:105.120.41
14-12-2025 10:004.880.38
14-12-2025 09:504.620.3
14-12-2025 09:404.40.23
14-12-2025 09:304.170.14
14-12-2025 09:203.960.04
14-12-2025 09:103.79-0.05
14-12-2025 09:003.62-0.16
14-12-2025 08:503.48-0.26
14-12-2025 08:403.4-0.32
14-12-2025 08:303.36-0.37
14-12-2025 08:203.37-0.37
14-12-2025 08:103.42-0.36
14-12-2025 08:003.5-0.33
14-12-2025 07:503.61-0.28
14-12-2025 07:403.73-0.24
14-12-2025 07:303.9-0.17
14-12-2025 07:204.05-0.12
14-12-2025 07:104.23-0.06
14-12-2025 07:004.42-0.01
14-12-2025 06:504.620.05
14-12-2025 06:404.830.1
14-12-2025 06:305.040.12
14-12-2025 06:205.250.13
14-12-2025 06:105.470.14
14-12-2025 06:005.710.15
14-12-2025 05:505.950.14
14-12-2025 05:406.20.15
14-12-2025 05:306.450.13
14-12-2025 05:206.690.11
14-12-2025 05:106.960.09
14-12-2025 05:007.210.07
14-12-2025 04:507.460.05
14-12-2025 04:407.730.03
14-12-2025 04:307.980.02
14-12-2025 04:208.23-0
14-12-2025 04:108.48-0.01
14-12-2025 04:008.7-0.03
14-12-2025 03:508.93-0.04
14-12-2025 03:409.18-0.01
14-12-2025 03:309.39-0.01
14-12-2025 03:209.620.03
14-12-2025 03:109.820.06
14-12-2025 03:009.970.07
14-12-2025 02:5010.090.06
14-12-2025 02:4010.190.06
14-12-2025 02:3010.260.06
14-12-2025 02:2010.280.03
14-12-2025 02:1010.280.01
14-12-2025 02:0010.270.01
14-12-2025 01:5010.21-0
14-12-2025 01:4010.13-0.01
14-12-2025 01:3010.03-0.01
14-12-2025 01:209.920.01
14-12-2025 01:109.790.03
14-12-2025 01:009.640.05
14-12-2025 00:509.480.08
14-12-2025 00:409.290.09
14-12-2025 00:309.080.12
14-12-2025 00:208.890.16
14-12-2025 00:108.680.2