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
14-02-2026 13:004.68-0.03
 Next HWNext LW
17:27, 10.18 00:03, 3.47
Date Highest 2026 Date Lowest 2026
04-02 14.02m 03-02 0.75m
Time (GMT)ElevationResidual
05-12-2025 00:002.920.17
04-12-2025 23:503.20.12
04-12-2025 23:403.490.09
04-12-2025 23:303.790.06
04-12-2025 23:204.10.04
04-12-2025 23:104.40.01
04-12-2025 23:004.72-0
04-12-2025 22:505.03-0.02
04-12-2025 22:405.35-0.03
04-12-2025 22:305.67-0.04
04-12-2025 22:205.99-0.05
04-12-2025 22:106.3-0.06
04-12-2025 22:006.63-0.07
04-12-2025 21:506.97-0.08
04-12-2025 21:407.3-0.11
04-12-2025 21:307.65-0.14
04-12-2025 21:208-0.17
04-12-2025 21:108.35-0.22
04-12-2025 21:008.72-0.27
04-12-2025 20:509.09-0.32
04-12-2025 20:409.49-0.36
04-12-2025 20:309.88-0.41
04-12-2025 20:2010.31-0.41
04-12-2025 20:1010.76-0.4
04-12-2025 20:0011.2-0.37
04-12-2025 19:5011.64-0.32
04-12-2025 19:4012.05-0.26
04-12-2025 19:3012.41-0.23
04-12-2025 19:2012.73-0.18
04-12-2025 19:1012.97-0.16
04-12-2025 19:0013.19-0.11
04-12-2025 18:5013.34-0.05
04-12-2025 18:4013.42-0.01
04-12-2025 18:3013.410.02
04-12-2025 18:2013.320.04
04-12-2025 18:1013.180.07
04-12-2025 18:0012.970.09
04-12-2025 17:5012.720.14
04-12-2025 17:4012.440.19
04-12-2025 17:3012.120.25
04-12-2025 17:2011.740.29
04-12-2025 17:1011.340.34
04-12-2025 17:0010.920.4
04-12-2025 16:5010.470.43
04-12-2025 16:4010.010.46
04-12-2025 16:309.510.47
04-12-2025 16:208.980.44
04-12-2025 16:108.460.43
04-12-2025 16:007.940.41
04-12-2025 15:507.440.41
04-12-2025 15:406.960.43
04-12-2025 15:306.510.46
04-12-2025 15:206.030.47
04-12-2025 15:105.650.55
04-12-2025 15:005.230.59
04-12-2025 14:504.840.64
04-12-2025 14:404.380.61
04-12-2025 14:303.910.55
04-12-2025 14:203.450.45
04-12-2025 14:1030.35
04-12-2025 14:002.620.28
04-12-2025 13:502.280.21
04-12-2025 13:401.910.06
04-12-2025 13:301.55-0.13
04-12-2025 13:201.35-0.2
04-12-2025 13:101.33-0.15
04-12-2025 13:001.39-0.07
04-12-2025 12:501.50.01
04-12-2025 12:401.630.07
04-12-2025 12:301.780.11
04-12-2025 12:201.970.14
04-12-2025 12:102.160.14
04-12-2025 12:002.380.14
04-12-2025 11:502.60.12
04-12-2025 11:402.880.14
04-12-2025 11:303.090.07
04-12-2025 11:203.370.07
04-12-2025 11:103.650.06
04-12-2025 11:003.960.08
04-12-2025 10:504.250.07
04-12-2025 10:404.570.1
04-12-2025 10:304.850.08
04-12-2025 10:205.180.11
04-12-2025 10:105.470.1
04-12-2025 10:005.780.11
04-12-2025 09:506.090.11
04-12-2025 09:406.430.12
04-12-2025 09:306.750.1
04-12-2025 09:207.080.09
04-12-2025 09:107.410.06
04-12-2025 09:007.760.03
04-12-2025 08:508.09-0.03
04-12-2025 08:408.44-0.08
04-12-2025 08:308.79-0.15
04-12-2025 08:209.17-0.2
04-12-2025 08:109.54-0.26
04-12-2025 08:009.95-0.29
04-12-2025 07:5010.36-0.31
04-12-2025 07:4010.78-0.32
04-12-2025 07:3011.2-0.3
04-12-2025 07:2011.63-0.24
04-12-2025 07:1012.01-0.21
04-12-2025 07:0012.38-0.15
04-12-2025 06:5012.68-0.1
04-12-2025 06:4012.89-0.09
04-12-2025 06:3013.11-0.01
04-12-2025 06:2013.270.08
04-12-2025 06:1013.370.16
04-12-2025 06:0013.30.15
04-12-2025 05:5013.180.14
04-12-2025 05:4013.030.17
04-12-2025 05:3012.770.16
04-12-2025 05:2012.520.19
04-12-2025 05:1012.220.23
04-12-2025 05:0011.880.27
04-12-2025 04:5011.50.3
04-12-2025 04:4011.110.34
04-12-2025 04:3010.70.39
04-12-2025 04:2010.250.42
04-12-2025 04:109.80.45
04-12-2025 04:009.30.44
04-12-2025 03:508.780.42
04-12-2025 03:408.270.39
04-12-2025 03:307.760.38
04-12-2025 03:207.280.38
04-12-2025 03:106.820.41
04-12-2025 03:006.360.42
04-12-2025 02:505.910.43
04-12-2025 02:405.520.51
04-12-2025 02:305.120.56
04-12-2025 02:204.730.6
04-12-2025 02:104.280.57
04-12-2025 02:003.830.51
04-12-2025 01:503.360.4
04-12-2025 01:402.920.28
04-12-2025 01:302.550.21
04-12-2025 01:202.220.14
04-12-2025 01:101.83-0.04
04-12-2025 01:001.49-0.22
04-12-2025 00:501.34-0.25
04-12-2025 00:401.35-0.18
04-12-2025 00:301.41-0.1
04-12-2025 00:201.53-0.01
04-12-2025 00:101.670.05