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 19:4012.140.21
 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
06-12-2025 00:004.770.16
05-12-2025 23:505.090.13
05-12-2025 23:405.40.1
05-12-2025 23:305.720.08
05-12-2025 23:206.040.07
05-12-2025 23:106.370.06
05-12-2025 23:006.690.06
05-12-2025 22:507.030.07
05-12-2025 22:407.380.08
05-12-2025 22:307.730.09
05-12-2025 22:208.090.1
05-12-2025 22:108.440.09
05-12-2025 22:008.820.08
05-12-2025 21:509.190.06
05-12-2025 21:409.570.04
05-12-2025 21:309.980.02
05-12-2025 21:2010.410.03
05-12-2025 21:1010.860.05
05-12-2025 21:0011.350.12
05-12-2025 20:5011.820.18
05-12-2025 20:4012.330.3
05-12-2025 20:3012.780.38
05-12-2025 20:2013.160.45
05-12-2025 20:1013.50.5
05-12-2025 20:0013.780.56
05-12-2025 19:5013.930.55
05-12-2025 19:4014.090.61
05-12-2025 19:3014.150.64
05-12-2025 19:2014.130.66
05-12-2025 19:1014.010.66
05-12-2025 19:0013.80.63
05-12-2025 18:5013.570.64
05-12-2025 18:4013.280.66
05-12-2025 18:3012.960.7
05-12-2025 18:2012.630.77
05-12-2025 18:1012.220.8
05-12-2025 18:0011.770.84
05-12-2025 17:5011.350.9
05-12-2025 17:4010.890.95
05-12-2025 17:3010.360.95
05-12-2025 17:209.830.94
05-12-2025 17:109.250.88
05-12-2025 17:008.660.82
05-12-2025 16:508.130.8
05-12-2025 16:407.560.74
05-12-2025 16:3070.7
05-12-2025 16:206.450.64
05-12-2025 16:105.910.59
05-12-2025 16:005.470.63
05-12-2025 15:505.010.63
05-12-2025 15:404.560.62
05-12-2025 15:304.030.53
05-12-2025 15:203.490.4
05-12-2025 15:102.990.28
05-12-2025 15:002.570.21
05-12-2025 14:502.210.17
05-12-2025 14:401.830.06
05-12-2025 14:301.43-0.11
05-12-2025 14:201.21-0.16
05-12-2025 14:101.18-0.07
05-12-2025 14:001.230.05
05-12-2025 13:501.330.16
05-12-2025 13:401.460.25
05-12-2025 13:301.620.3
05-12-2025 13:201.790.33
05-12-2025 13:101.970.32
05-12-2025 13:002.190.31
05-12-2025 12:502.390.25
05-12-2025 12:402.630.21
05-12-2025 12:302.840.12
05-12-2025 12:203.110.07
05-12-2025 12:103.410.03
05-12-2025 12:003.68-0.03
05-12-2025 11:503.97-0.07
05-12-2025 11:404.28-0.09
05-12-2025 11:304.6-0.1
05-12-2025 11:204.9-0.12
05-12-2025 11:105.2-0.14
05-12-2025 11:005.51-0.15
05-12-2025 10:505.82-0.15
05-12-2025 10:406.16-0.13
05-12-2025 10:306.47-0.13
05-12-2025 10:206.82-0.12
05-12-2025 10:107.14-0.13
05-12-2025 10:007.5-0.12
05-12-2025 09:507.83-0.16
05-12-2025 09:408.18-0.19
05-12-2025 09:308.53-0.24
05-12-2025 09:208.88-0.3
05-12-2025 09:109.27-0.33
05-12-2025 09:009.66-0.38
05-12-2025 08:5010.08-0.41
05-12-2025 08:4010.52-0.4
05-12-2025 08:3010.98-0.37
05-12-2025 08:2011.42-0.35
05-12-2025 08:1011.87-0.29
05-12-2025 08:0012.28-0.24
05-12-2025 07:5012.65-0.19
05-12-2025 07:4012.97-0.13
05-12-2025 07:3013.18-0.14
05-12-2025 07:2013.41-0.06
05-12-2025 07:1013.54-0
05-12-2025 07:0013.590.03
05-12-2025 06:5013.550.06
05-12-2025 06:4013.440.07
05-12-2025 06:3013.270.1
05-12-2025 06:2013.020.12
05-12-2025 06:1012.780.2
05-12-2025 06:0012.460.25
05-12-2025 05:5012.090.29
05-12-2025 05:4011.680.33
05-12-2025 05:3011.250.37
05-12-2025 05:2010.790.42
05-12-2025 05:1010.310.45
05-12-2025 05:009.790.45
05-12-2025 04:509.250.43
05-12-2025 04:408.680.4
05-12-2025 04:308.140.38
05-12-2025 04:207.610.37
05-12-2025 04:107.080.36
05-12-2025 04:006.570.36
05-12-2025 03:506.060.36
05-12-2025 03:405.630.42
05-12-2025 03:305.220.49
05-12-2025 03:204.790.53
05-12-2025 03:104.370.56
05-12-2025 03:003.860.48
05-12-2025 02:503.370.4
05-12-2025 02:402.90.31
05-12-2025 02:302.50.26
05-12-2025 02:202.180.24
05-12-2025 02:101.770.09
05-12-2025 02:001.34-0.13
05-12-2025 01:501.13-0.18
05-12-2025 01:401.11-0.09
05-12-2025 01:301.180.03
05-12-2025 01:201.30.15
05-12-2025 01:101.440.23
05-12-2025 01:001.590.28
05-12-2025 00:501.790.31
05-12-2025 00:401.990.33
05-12-2025 00:302.20.3
05-12-2025 00:202.430.27
05-12-2025 00:102.660.22