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
10-04-2026 09:308.150.42
 Next HWNext LW
11:55, 9.59 18:01, 3.78
Date Highest 2026 Date Lowest 2026
04-02 14.02m 21-03 0.33m
Time (GMT)ElevationResidual
20-01-2026 00:005.19-0.08
19-01-2026 23:505.5-0.08
19-01-2026 23:405.8-0.1
19-01-2026 23:306.1-0.11
19-01-2026 23:206.42-0.13
19-01-2026 23:106.74-0.13
19-01-2026 23:007.05-0.17
19-01-2026 22:507.38-0.19
19-01-2026 22:407.72-0.22
19-01-2026 22:308.06-0.24
19-01-2026 22:208.41-0.27
19-01-2026 22:108.78-0.28
19-01-2026 22:009.14-0.3
19-01-2026 21:509.54-0.28
19-01-2026 21:409.94-0.25
19-01-2026 21:3010.33-0.22
19-01-2026 21:2010.72-0.18
19-01-2026 21:1011.08-0.13
19-01-2026 21:0011.44-0.07
19-01-2026 20:5011.76-0.01
19-01-2026 20:4012.020.03
19-01-2026 20:3012.250.09
19-01-2026 20:2012.440.15
19-01-2026 20:1012.550.18
19-01-2026 20:0012.590.21
19-01-2026 19:5012.540.19
19-01-2026 19:4012.450.18
19-01-2026 19:3012.290.16
19-01-2026 19:2012.080.14
19-01-2026 19:1011.830.13
19-01-2026 19:0011.560.13
19-01-2026 18:5011.250.13
19-01-2026 18:4010.90.12
19-01-2026 18:3010.530.11
19-01-2026 18:2010.140.11
19-01-2026 18:109.750.12
19-01-2026 18:009.340.13
19-01-2026 17:508.920.14
19-01-2026 17:408.490.14
19-01-2026 17:308.030.12
19-01-2026 17:207.590.13
19-01-2026 17:107.170.15
19-01-2026 17:006.760.18
19-01-2026 16:506.330.21
19-01-2026 16:405.910.23
19-01-2026 16:305.560.32
19-01-2026 16:205.190.38
19-01-2026 16:104.810.42
19-01-2026 16:004.390.41
19-01-2026 15:503.960.36
19-01-2026 15:403.510.26
19-01-2026 15:303.070.14
19-01-2026 15:202.70.06
19-01-2026 15:102.37-0.02
19-01-2026 15:001.99-0.2
19-01-2026 14:501.64-0.39
19-01-2026 14:401.46-0.46
19-01-2026 14:301.46-0.4
19-01-2026 14:201.53-0.32
19-01-2026 14:101.64-0.23
19-01-2026 14:001.78-0.17
19-01-2026 13:501.95-0.11
19-01-2026 13:402.12-0.08
19-01-2026 13:302.34-0.05
19-01-2026 13:202.53-0.06
19-01-2026 13:102.77-0.05
19-01-2026 13:003.02-0.04
19-01-2026 12:503.26-0.06
19-01-2026 12:403.56-0.03
19-01-2026 12:303.85-0.03
19-01-2026 12:204.13-0.03
19-01-2026 12:104.44-0.02
19-01-2026 12:004.72-0.04
19-01-2026 11:505.01-0.06
19-01-2026 11:405.32-0.06
19-01-2026 11:305.61-0.09
19-01-2026 11:205.92-0.1
19-01-2026 11:106.23-0.13
19-01-2026 11:006.54-0.16
19-01-2026 10:506.87-0.17
19-01-2026 10:407.19-0.21
19-01-2026 10:307.54-0.23
19-01-2026 10:207.86-0.27
19-01-2026 10:108.19-0.31
19-01-2026 10:008.54-0.34
19-01-2026 09:508.9-0.36
19-01-2026 09:409.25-0.38
19-01-2026 09:309.63-0.37
19-01-2026 09:2010.04-0.32
19-01-2026 09:1010.41-0.3
19-01-2026 09:0010.8-0.24
19-01-2026 08:5011.16-0.18
19-01-2026 08:4011.49-0.13
19-01-2026 08:3011.82-0.05
19-01-2026 08:2012.070
19-01-2026 08:1012.290.06
19-01-2026 08:0012.490.13
19-01-2026 07:5012.60.17
19-01-2026 07:4012.640.19
19-01-2026 07:3012.630.21
19-01-2026 07:2012.540.2
19-01-2026 07:1012.410.19
19-01-2026 07:0012.220.18
19-01-2026 06:5011.990.17
19-01-2026 06:4011.750.19
19-01-2026 06:3011.470.21
19-01-2026 06:2011.150.21
19-01-2026 06:1010.790.21
19-01-2026 06:0010.420.22
19-01-2026 05:5010.050.25
19-01-2026 05:409.650.25
19-01-2026 05:309.210.24
19-01-2026 05:208.770.23
19-01-2026 05:108.330.22
19-01-2026 05:007.860.2
19-01-2026 04:507.420.2
19-01-2026 04:4070.22
19-01-2026 04:306.580.25
19-01-2026 04:206.170.28
19-01-2026 04:105.790.33
19-01-2026 04:005.430.39
19-01-2026 03:505.10.48
19-01-2026 03:404.720.5
19-01-2026 03:304.310.47
19-01-2026 03:203.90.4
19-01-2026 03:103.460.29
19-01-2026 03:003.060.16
19-01-2026 02:502.730.09
19-01-2026 02:402.41-0.03
19-01-2026 02:302.05-0.22
19-01-2026 02:201.78-0.37
19-01-2026 02:101.68-0.4
19-01-2026 02:001.69-0.36
19-01-2026 01:501.76-0.3
19-01-2026 01:401.88-0.23
19-01-2026 01:302.02-0.18
19-01-2026 01:202.18-0.15
19-01-2026 01:102.38-0.1
19-01-2026 01:002.59-0.07
19-01-2026 00:502.79-0.07
19-01-2026 00:403.02-0.07
19-01-2026 00:303.26-0.06
19-01-2026 00:203.52-0.06
19-01-2026 00:103.8-0.05