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 01:003.82-0.11
 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
13-12-2025 00:009.770.07
12-12-2025 23:509.60.11
12-12-2025 23:409.410.14
12-12-2025 23:309.20.16
12-12-2025 23:208.980.2
12-12-2025 23:108.750.23
12-12-2025 23:008.510.26
12-12-2025 22:508.270.29
12-12-2025 22:408.020.32
12-12-2025 22:307.770.36
12-12-2025 22:207.510.39
12-12-2025 22:107.250.41
12-12-2025 22:006.990.44
12-12-2025 21:506.740.47
12-12-2025 21:406.490.51
12-12-2025 21:306.240.54
12-12-2025 21:206.010.58
12-12-2025 21:105.770.59
12-12-2025 21:005.520.6
12-12-2025 20:505.290.59
12-12-2025 20:405.040.57
12-12-2025 20:304.820.54
12-12-2025 20:204.570.47
12-12-2025 20:104.320.37
12-12-2025 20:004.10.28
12-12-2025 19:503.870.16
12-12-2025 19:403.670.04
12-12-2025 19:303.49-0.09
12-12-2025 19:203.31-0.23
12-12-2025 19:103.17-0.36
12-12-2025 19:003.08-0.46
12-12-2025 18:503.04-0.53
12-12-2025 18:403.06-0.56
12-12-2025 18:303.13-0.56
12-12-2025 18:203.25-0.53
12-12-2025 18:103.37-0.52
12-12-2025 18:003.53-0.49
12-12-2025 17:503.7-0.45
12-12-2025 17:403.9-0.41
12-12-2025 17:304.12-0.36
12-12-2025 17:204.34-0.33
12-12-2025 17:104.58-0.3
12-12-2025 17:004.82-0.28
12-12-2025 16:505.04-0.28
12-12-2025 16:405.3-0.26
12-12-2025 16:305.56-0.25
12-12-2025 16:205.83-0.23
12-12-2025 16:106.09-0.22
12-12-2025 16:006.36-0.22
12-12-2025 15:506.63-0.21
12-12-2025 15:406.92-0.2
12-12-2025 15:307.2-0.18
12-12-2025 15:207.49-0.17
12-12-2025 15:107.77-0.16
12-12-2025 15:008.07-0.13
12-12-2025 14:508.39-0.09
12-12-2025 14:408.68-0.06
12-12-2025 14:308.99-0.01
12-12-2025 14:209.270.02
12-12-2025 14:109.560.05
12-12-2025 14:009.830.08
12-12-2025 13:5010.090.12
12-12-2025 13:4010.330.15
12-12-2025 13:3010.520.16
12-12-2025 13:2010.70.17
12-12-2025 13:1010.860.19
12-12-2025 13:0010.980.2
12-12-2025 12:5011.060.21
12-12-2025 12:4011.120.22
12-12-2025 12:3011.120.21
12-12-2025 12:2011.080.2
12-12-2025 12:1011.020.21
12-12-2025 12:0010.940.22
12-12-2025 11:5010.810.22
12-12-2025 11:4010.660.23
12-12-2025 11:3010.480.23
12-12-2025 11:2010.30.26
12-12-2025 11:1010.060.25
12-12-2025 11:009.830.26
12-12-2025 10:509.570.27
12-12-2025 10:409.310.28
12-12-2025 10:309.040.29
12-12-2025 10:208.760.31
12-12-2025 10:108.480.33
12-12-2025 10:008.190.33
12-12-2025 09:507.930.38
12-12-2025 09:407.640.4
12-12-2025 09:307.340.41
12-12-2025 09:207.050.43
12-12-2025 09:106.760.44
12-12-2025 09:006.470.46
12-12-2025 08:506.20.48
12-12-2025 08:405.910.48
12-12-2025 08:305.620.46
12-12-2025 08:205.350.45
12-12-2025 08:105.080.42
12-12-2025 08:004.80.37
12-12-2025 07:504.510.29
12-12-2025 07:404.230.19
12-12-2025 07:303.960.08
12-12-2025 07:203.71-0.04
12-12-2025 07:103.5-0.14
12-12-2025 07:003.29-0.26
12-12-2025 06:503.12-0.37
12-12-2025 06:402.99-0.47
12-12-2025 06:302.9-0.54
12-12-2025 06:202.87-0.58
12-12-2025 06:102.92-0.58
12-12-2025 06:003-0.55
12-12-2025 05:503.14-0.5
12-12-2025 05:403.29-0.44
12-12-2025 05:303.45-0.41
12-12-2025 05:203.63-0.37
12-12-2025 05:103.85-0.32
12-12-2025 05:004.08-0.26
12-12-2025 04:504.31-0.22
12-12-2025 04:404.55-0.2
12-12-2025 04:304.8-0.17
12-12-2025 04:205.04-0.16
12-12-2025 04:105.28-0.16
12-12-2025 04:005.56-0.12
12-12-2025 03:505.83-0.11
12-12-2025 03:406.1-0.09
12-12-2025 03:306.37-0.09
12-12-2025 03:206.65-0.07
12-12-2025 03:106.93-0.06
12-12-2025 03:007.22-0.04
12-12-2025 02:507.5-0.03
12-12-2025 02:407.8-0.01
12-12-2025 02:308.10.02
12-12-2025 02:208.410.06
12-12-2025 02:108.710.08
12-12-2025 02:0090.1
12-12-2025 01:509.30.14
12-12-2025 01:409.590.17
12-12-2025 01:309.870.22
12-12-2025 01:2010.130.25
12-12-2025 01:1010.370.28
12-12-2025 01:0010.560.28
12-12-2025 00:5010.730.3
12-12-2025 00:4010.860.31
12-12-2025 00:3010.950.3
12-12-2025 00:2011.010.31
12-12-2025 00:1011.020.3