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
18-01-2026 19:2012.220.23
 Next HWNext LW
07:41, 12.45 01:58, 2.05
Date Highest 2026 Date Lowest 2026
06-01 13.49m 06-01 0.83m
Time (GMT)ElevationResidual
14-12-2025 00:008.460.23
13-12-2025 23:508.240.27
13-12-2025 23:408.020.32
13-12-2025 23:307.780.36
13-12-2025 23:207.540.4
13-12-2025 23:107.310.44
13-12-2025 23:007.060.47
13-12-2025 22:506.810.5
13-12-2025 22:406.560.52
13-12-2025 22:306.320.55
13-12-2025 22:206.070.56
13-12-2025 22:105.830.58
13-12-2025 22:005.590.58
13-12-2025 21:505.370.58
13-12-2025 21:405.140.56
13-12-2025 21:304.920.54
13-12-2025 21:204.690.47
13-12-2025 21:104.450.38
13-12-2025 21:004.230.28
13-12-2025 20:504.010.16
13-12-2025 20:403.810.04
13-12-2025 20:303.65-0.07
13-12-2025 20:203.48-0.21
13-12-2025 20:103.36-0.32
13-12-2025 20:003.26-0.42
13-12-2025 19:503.24-0.47
13-12-2025 19:403.27-0.49
13-12-2025 19:303.32-0.49
13-12-2025 19:203.42-0.46
13-12-2025 19:103.54-0.43
13-12-2025 19:003.68-0.4
13-12-2025 18:503.85-0.35
13-12-2025 18:404.04-0.29
13-12-2025 18:304.23-0.25
13-12-2025 18:204.45-0.2
13-12-2025 18:104.66-0.17
13-12-2025 18:004.89-0.13
13-12-2025 17:505.11-0.12
13-12-2025 17:405.34-0.12
13-12-2025 17:305.6-0.09
13-12-2025 17:205.86-0.09
13-12-2025 17:106.12-0.09
13-12-2025 17:006.38-0.09
13-12-2025 16:506.64-0.11
13-12-2025 16:406.9-0.13
13-12-2025 16:307.16-0.14
13-12-2025 16:207.42-0.16
13-12-2025 16:107.69-0.17
13-12-2025 16:007.96-0.17
13-12-2025 15:508.24-0.17
13-12-2025 15:408.5-0.17
13-12-2025 15:308.77-0.15
13-12-2025 15:209.03-0.13
13-12-2025 15:109.28-0.11
13-12-2025 15:009.52-0.09
13-12-2025 14:509.76-0.05
13-12-2025 14:409.98-0.03
13-12-2025 14:3010.17-0
13-12-2025 14:2010.330.02
13-12-2025 14:1010.470.04
13-12-2025 14:0010.570.04
13-12-2025 13:5010.650.06
13-12-2025 13:4010.690.06
13-12-2025 13:3010.70.06
13-12-2025 13:2010.670.06
13-12-2025 13:1010.610.05
13-12-2025 13:0010.510.04
13-12-2025 12:5010.390.03
13-12-2025 12:4010.240.02
13-12-2025 12:3010.070.02
13-12-2025 12:209.890.02
13-12-2025 12:109.690.02
13-12-2025 12:009.480.04
13-12-2025 11:509.240.04
13-12-2025 11:409.010.06
13-12-2025 11:308.780.08
13-12-2025 11:208.520.1
13-12-2025 11:108.270.12
13-12-2025 11:0080.14
13-12-2025 10:507.720.15
13-12-2025 10:407.450.17
13-12-2025 10:307.170.19
13-12-2025 10:206.90.22
13-12-2025 10:106.630.24
13-12-2025 10:006.380.27
13-12-2025 09:506.140.32
13-12-2025 09:405.890.35
13-12-2025 09:305.660.38
13-12-2025 09:205.440.4
13-12-2025 09:105.220.41
13-12-2025 09:004.990.4
13-12-2025 08:504.760.36
13-12-2025 08:404.510.28
13-12-2025 08:304.280.19
13-12-2025 08:204.060.1
13-12-2025 08:103.85-0.01
13-12-2025 08:003.65-0.13
13-12-2025 07:503.49-0.23
13-12-2025 07:403.34-0.35
13-12-2025 07:303.23-0.44
13-12-2025 07:203.16-0.51
13-12-2025 07:103.13-0.56
13-12-2025 07:003.16-0.57
13-12-2025 06:503.24-0.54
13-12-2025 06:403.34-0.51
13-12-2025 06:303.49-0.46
13-12-2025 06:203.65-0.41
13-12-2025 06:103.82-0.36
13-12-2025 06:004.03-0.3
13-12-2025 05:504.23-0.27
13-12-2025 05:404.44-0.23
13-12-2025 05:304.66-0.2
13-12-2025 05:204.89-0.18
13-12-2025 05:105.13-0.17
13-12-2025 05:005.36-0.18
13-12-2025 04:505.61-0.17
13-12-2025 04:405.86-0.18
13-12-2025 04:306.12-0.18
13-12-2025 04:206.37-0.19
13-12-2025 04:106.63-0.2
13-12-2025 04:006.89-0.21
13-12-2025 03:507.15-0.22
13-12-2025 03:407.43-0.22
13-12-2025 03:307.71-0.21
13-12-2025 03:207.98-0.19
13-12-2025 03:108.26-0.18
13-12-2025 03:008.51-0.18
13-12-2025 02:508.76-0.18
13-12-2025 02:409.01-0.16
13-12-2025 02:309.26-0.13
13-12-2025 02:209.52-0.08
13-12-2025 02:109.73-0.06
13-12-2025 02:009.91-0.04
13-12-2025 01:5010.07-0.03
13-12-2025 01:4010.2-0.03
13-12-2025 01:3010.29-0.03
13-12-2025 01:2010.33-0.04
13-12-2025 01:1010.34-0.06
13-12-2025 01:0010.34-0.06
13-12-2025 00:5010.3-0.06
13-12-2025 00:4010.25-0.04
13-12-2025 00:3010.16-0.02
13-12-2025 00:2010.050
13-12-2025 00:109.910.03