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
07-12-2025 10:3010.08-0.04
 Next HWNext LW
21:05, 12.83 15:29, 1.51
Date Highest 2025 Date Lowest 2025
27-04 15.33m 31-03 0.03m
Time (GMT)ElevationResidual
07-12-2025 10:3010.08-0.04
07-12-2025 10:2010.49-0.03
07-12-2025 10:1010.950.03
07-12-2025 10:0011.410.1
07-12-2025 09:5011.850.16
07-12-2025 09:4012.310.25
07-12-2025 09:3012.710.33
07-12-2025 09:2013.070.4
07-12-2025 09:1013.310.41
07-12-2025 09:0013.540.45
07-12-2025 08:5013.720.51
07-12-2025 08:4013.810.55
07-12-2025 08:3013.830.59
07-12-2025 08:2013.740.58
07-12-2025 08:1013.590.59
07-12-2025 08:0013.380.6
07-12-2025 07:5013.110.61
07-12-2025 07:4012.840.67
07-12-2025 07:3012.480.68
07-12-2025 07:2012.040.66
07-12-2025 07:1011.60.67
07-12-2025 07:0011.130.67
07-12-2025 06:5010.630.67
07-12-2025 06:4010.090.63
07-12-2025 06:309.520.56
07-12-2025 06:208.940.49
07-12-2025 06:108.360.42
07-12-2025 06:007.810.37
07-12-2025 05:507.270.33
07-12-2025 05:406.760.31
07-12-2025 05:306.220.25
07-12-2025 05:205.750.26
07-12-2025 05:105.310.29
07-12-2025 05:004.870.3
07-12-2025 04:504.380.27
07-12-2025 04:403.860.17
07-12-2025 04:303.340.06
07-12-2025 04:202.87-0.02
07-12-2025 04:102.44-0.09
07-12-2025 04:002.08-0.13
07-12-2025 03:501.57-0.36
07-12-2025 03:401.2-0.51
07-12-2025 03:301.11-0.41
07-12-2025 03:201.14-0.25
07-12-2025 03:101.24-0.08
07-12-2025 03:001.360.06
07-12-2025 02:501.520.18
07-12-2025 02:401.690.26
07-12-2025 02:301.890.3
07-12-2025 02:202.120.34
07-12-2025 02:102.330.31
07-12-2025 02:002.560.27
07-12-2025 01:502.810.21
07-12-2025 01:403.080.15
07-12-2025 01:303.350.07
07-12-2025 01:203.640.01
07-12-2025 01:103.95-0.05
07-12-2025 01:004.26-0.11
07-12-2025 00:504.56-0.16
07-12-2025 00:404.87-0.2
07-12-2025 00:305.18-0.24
07-12-2025 00:205.49-0.26
07-12-2025 00:105.82-0.26
07-12-2025 00:006.14-0.27
06-12-2025 23:506.46-0.26
06-12-2025 23:406.79-0.24
06-12-2025 23:307.14-0.21
06-12-2025 23:207.48-0.18
06-12-2025 23:107.82-0.17
06-12-2025 23:008.18-0.14
06-12-2025 22:508.52-0.15
06-12-2025 22:408.88-0.15
06-12-2025 22:309.24-0.17
06-12-2025 22:209.64-0.15
06-12-2025 22:1010.07-0.12
06-12-2025 22:0010.49-0.11
06-12-2025 21:5010.96-0.05
06-12-2025 21:4011.420.03
06-12-2025 21:3011.910.13
06-12-2025 21:2012.320.19
06-12-2025 21:1012.680.23
06-12-2025 21:00130.27
06-12-2025 20:5013.250.29
06-12-2025 20:4013.460.33
06-12-2025 20:3013.620.38
06-12-2025 20:2013.680.4
06-12-2025 20:1013.660.41
06-12-2025 20:0013.540.38
06-12-2025 19:5013.40.41
06-12-2025 19:4013.160.41
06-12-2025 19:3012.890.43
06-12-2025 19:2012.610.5
06-12-2025 19:1012.240.52
06-12-2025 19:0011.830.55
06-12-2025 18:5011.390.57
06-12-2025 18:4010.950.62
06-12-2025 18:3010.490.67
06-12-2025 18:2010.010.69
06-12-2025 18:109.490.7
06-12-2025 18:008.960.67
06-12-2025 17:508.410.64
06-12-2025 17:407.890.62
06-12-2025 17:307.390.62
06-12-2025 17:206.910.63
06-12-2025 17:106.440.65
06-12-2025 17:005.980.66
06-12-2025 16:505.570.71
06-12-2025 16:405.150.75
06-12-2025 16:304.730.76
06-12-2025 16:204.250.7
06-12-2025 16:103.760.62
06-12-2025 16:003.290.53
06-12-2025 15:502.890.47
06-12-2025 15:402.550.45
06-12-2025 15:302.20.36
06-12-2025 15:201.810.21
06-12-2025 15:101.590.17
06-12-2025 15:001.530.23
06-12-2025 14:501.570.35
06-12-2025 14:401.650.45
06-12-2025 14:301.770.52
06-12-2025 14:201.930.59
06-12-2025 14:102.110.62
06-12-2025 14:002.330.65
06-12-2025 13:502.530.62
06-12-2025 13:402.740.56
06-12-2025 13:302.980.5
06-12-2025 13:203.230.43
06-12-2025 13:103.50.37
06-12-2025 13:003.760.27
06-12-2025 12:504.070.23
06-12-2025 12:404.370.18
06-12-2025 12:304.650.12
06-12-2025 12:204.950.08
06-12-2025 12:105.280.08
06-12-2025 12:005.570.04
06-12-2025 11:505.890.04
06-12-2025 11:406.190.03
06-12-2025 11:306.50.03
06-12-2025 11:206.80.03
06-12-2025 11:107.130.04
06-12-2025 11:007.470.07
06-12-2025 10:507.830.1
06-12-2025 10:408.180.12
06-12-2025 10:308.540.12
06-12-2025 10:208.90.11
06-12-2025 10:109.280.11
06-12-2025 10:009.630.05
06-12-2025 09:5010.030.04
06-12-2025 09:4010.460.04
06-12-2025 09:3010.870.03
06-12-2025 09:2011.320.05
06-12-2025 09:1011.740.07
06-12-2025 09:0012.220.15
06-12-2025 08:5012.660.22
06-12-2025 08:4013.010.24
06-12-2025 08:3013.320.28
06-12-2025 08:2013.620.36
06-12-2025 08:1013.790.36
06-12-2025 08:0013.930.4
06-12-2025 07:5014.030.48
06-12-2025 07:4014.070.56
06-12-2025 07:3014.020.63
06-12-2025 07:2013.870.67
06-12-2025 07:1013.660.71
06-12-2025 07:0013.390.75
06-12-2025 06:5013.090.82
06-12-2025 06:4012.760.91
06-12-2025 06:3012.390.99
06-12-2025 06:2011.951.02
06-12-2025 06:1011.471.05
06-12-2025 06:0011.021.11
06-12-2025 05:5010.531.15
06-12-2025 05:4010.041.19
06-12-2025 05:309.51.18
06-12-2025 05:208.941.16
06-12-2025 05:108.391.13
06-12-2025 05:007.861.11
06-12-2025 04:507.351.12
06-12-2025 04:406.841.12
06-12-2025 04:306.351.12
06-12-2025 04:205.861.11
06-12-2025 04:105.431.15
06-12-2025 04:004.991.17
06-12-2025 03:504.481.1
06-12-2025 03:403.910.95
06-12-2025 03:303.390.82
06-12-2025 03:202.940.72
06-12-2025 03:102.520.61
06-12-2025 03:002.030.4
06-12-2025 02:501.60.18
06-12-2025 02:401.410.16
06-12-2025 02:301.40.27
06-12-2025 02:201.490.4
06-12-2025 02:101.590.5
06-12-2025 02:001.730.58
06-12-2025 01:501.910.64
06-12-2025 01:402.10.67
06-12-2025 01:302.30.65
06-12-2025 01:202.510.62
06-12-2025 01:102.740.56
06-12-2025 01:003.010.51
06-12-2025 00:503.270.45
06-12-2025 00:403.580.41
06-12-2025 00:303.860.32
06-12-2025 00:204.160.27
06-12-2025 00:104.460.21
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