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
27-04-2025 02:403.20.05
 Next HWNext LW
06:42, 13.87 13:32, 0.43
Date Highest 2025 Date Lowest 2025
31-03 15.17m 31-03 0.03m
Time (GMT)ElevationResidual
27-04-2025 02:403.20.05
27-04-2025 02:302.66-0.07
27-04-2025 02:202.17-0.16
27-04-2025 02:101.87-0.11
27-04-2025 02:001.45-0.22
27-04-2025 01:500.92-0.49
27-04-2025 01:400.64-0.56
27-04-2025 01:300.62-0.43
27-04-2025 01:200.71-0.25
27-04-2025 01:100.82-0.1
27-04-2025 01:000.970.04
27-04-2025 00:501.150.15
27-04-2025 00:401.330.21
27-04-2025 00:301.520.25
27-04-2025 00:201.720.25
27-04-2025 00:101.920.22
27-04-2025 00:002.180.22
26-04-2025 23:502.430.2
26-04-2025 23:402.650.14
26-04-2025 23:302.910.1
26-04-2025 23:203.20.09
26-04-2025 23:103.530.11
26-04-2025 23:003.850.13
26-04-2025 22:504.170.14
26-04-2025 22:404.480.15
26-04-2025 22:304.80.17
26-04-2025 22:205.120.18
26-04-2025 22:105.440.19
26-04-2025 22:005.770.2
26-04-2025 21:506.090.18
26-04-2025 21:406.410.16
26-04-2025 21:306.760.15
26-04-2025 21:207.080.1
26-04-2025 21:107.420.04
26-04-2025 21:007.77-0.02
26-04-2025 20:508.12-0.1
26-04-2025 20:408.49-0.18
26-04-2025 20:308.87-0.25
26-04-2025 20:209.26-0.33
26-04-2025 20:109.7-0.36
26-04-2025 20:0010.13-0.39
26-04-2025 19:5010.55-0.42
26-04-2025 19:4010.97-0.44
26-04-2025 19:3011.39-0.43
26-04-2025 19:2011.82-0.38
26-04-2025 19:1012.17-0.38
26-04-2025 19:0012.5-0.33
26-04-2025 18:5012.79-0.28
26-04-2025 18:4013-0.24
26-04-2025 18:3013.12-0.24
26-04-2025 18:2013.16-0.24
26-04-2025 18:1013.09-0.28
26-04-2025 18:0012.97-0.3
26-04-2025 17:5012.78-0.33
26-04-2025 17:4012.57-0.31
26-04-2025 17:3012.32-0.28
26-04-2025 17:2012-0.26
26-04-2025 17:1011.64-0.23
26-04-2025 17:0011.25-0.21
26-04-2025 16:5010.85-0.15
26-04-2025 16:4010.4-0.12
26-04-2025 16:309.92-0.1
26-04-2025 16:209.41-0.09
26-04-2025 16:108.9-0.08
26-04-2025 16:008.35-0.1
26-04-2025 15:507.81-0.11
26-04-2025 15:407.3-0.1
26-04-2025 15:306.79-0.08
26-04-2025 15:206.27-0.09
26-04-2025 15:105.79-0.05
26-04-2025 15:005.370.03
26-04-2025 14:504.940.09
26-04-2025 14:404.490.12
26-04-2025 14:304.040.12
26-04-2025 14:203.540.07
26-04-2025 14:103.01-0.05
26-04-2025 14:002.51-0.16
26-04-2025 13:502.11-0.21
26-04-2025 13:401.81-0.21
26-04-2025 13:301.32-0.43
26-04-2025 13:200.89-0.63
26-04-2025 13:100.78-0.57
26-04-2025 13:000.81-0.42
26-04-2025 12:500.91-0.24
26-04-2025 12:401.06-0.08
26-04-2025 12:301.20.04
26-04-2025 12:201.380.14
26-04-2025 12:101.560.2
26-04-2025 12:001.740.23
26-04-2025 11:501.940.25
26-04-2025 11:402.170.26
26-04-2025 11:302.40.25
26-04-2025 11:202.630.24
26-04-2025 11:102.90.25
26-04-2025 11:003.170.24
26-04-2025 10:503.480.28
26-04-2025 10:403.810.32
26-04-2025 10:304.120.35
26-04-2025 10:204.440.38
26-04-2025 10:104.750.4
26-04-2025 10:005.060.42
26-04-2025 09:505.390.44
26-04-2025 09:405.70.43
26-04-2025 09:306.010.41
26-04-2025 09:206.330.39
26-04-2025 09:106.650.36
26-04-2025 09:006.990.33
26-04-2025 08:507.320.27
26-04-2025 08:407.650.2
26-04-2025 08:307.980.12
26-04-2025 08:208.340.05
26-04-2025 08:108.71-0.03
26-04-2025 08:009.09-0.1
26-04-2025 07:509.48-0.16
26-04-2025 07:409.91-0.19
26-04-2025 07:3010.32-0.22
26-04-2025 07:2010.73-0.23
26-04-2025 07:1011.14-0.22
26-04-2025 07:0011.53-0.2
26-04-2025 06:5011.92-0.15
26-04-2025 06:4012.23-0.13
26-04-2025 06:3012.52-0.09
26-04-2025 06:2012.76-0.05
26-04-2025 06:1012.92-0.01
26-04-2025 06:0013-0.01
26-04-2025 05:5013-0.03
26-04-2025 05:4012.9-0.07
26-04-2025 05:3012.76-0.1
26-04-2025 05:2012.55-0.14
26-04-2025 05:1012.32-0.14
26-04-2025 05:0012.06-0.12
26-04-2025 04:5011.75-0.1
26-04-2025 04:4011.39-0.09
26-04-2025 04:3011.01-0.09
26-04-2025 04:2010.61-0.05
26-04-2025 04:1010.19-0.03
26-04-2025 04:009.760.01
26-04-2025 03:509.280
26-04-2025 03:408.80
26-04-2025 03:308.29-0.02
26-04-2025 03:207.79-0.04
26-04-2025 03:107.32-0.02
26-04-2025 03:006.84-0.02
26-04-2025 02:506.40.02
26-04-2025 02:405.920.01
26-04-2025 02:305.510.05
26-04-2025 02:205.150.13
26-04-2025 02:104.740.15
26-04-2025 02:004.320.15
26-04-2025 01:503.860.08
26-04-2025 01:403.4-0.02
26-04-2025 01:302.94-0.14
26-04-2025 01:202.54-0.25
26-04-2025 01:102.21-0.32
26-04-2025 01:001.91-0.4
26-04-2025 00:501.55-0.58
26-04-2025 00:401.25-0.74
26-04-2025 00:301.18-0.72
26-04-2025 00:201.22-0.63
26-04-2025 00:101.31-0.54
26-04-2025 00:001.44-0.45
25-04-2025 23:501.59-0.36
25-04-2025 23:401.75-0.31
25-04-2025 23:301.93-0.26
25-04-2025 23:202.13-0.22
25-04-2025 23:102.35-0.18
25-04-2025 23:002.55-0.17
25-04-2025 22:502.79-0.14
25-04-2025 22:403.04-0.1
25-04-2025 22:303.3-0.07
25-04-2025 22:203.58-0.02
25-04-2025 22:103.880.04
25-04-2025 22:004.170.09
25-04-2025 21:504.470.14
25-04-2025 21:404.770.17
25-04-2025 21:305.060.19
25-04-2025 21:205.380.23
25-04-2025 21:105.660.22
25-04-2025 21:005.970.22
25-04-2025 20:506.280.21
25-04-2025 20:406.60.19
25-04-2025 20:306.910.16
25-04-2025 20:207.220.11
25-04-2025 20:107.560.06
25-04-2025 20:007.890.01
25-04-2025 19:508.24-0.05
25-04-2025 19:408.59-0.09
25-04-2025 19:308.97-0.12
25-04-2025 19:209.35-0.15
25-04-2025 19:109.73-0.17
25-04-2025 19:0010.11-0.18
25-04-2025 18:5010.48-0.18
25-04-2025 18:4010.85-0.15
25-04-2025 18:3011.22-0.09
25-04-2025 18:2011.54-0.06
25-04-2025 18:1011.84-0
25-04-2025 18:0012.090.05
25-04-2025 17:5012.270.08
25-04-2025 17:4012.370.09
25-04-2025 17:3012.420.09
25-04-2025 17:2012.380.06
25-04-2025 17:1012.290.04
25-04-2025 17:0012.130
25-04-2025 16:5011.93-0.03
25-04-2025 16:4011.72-0.02
25-04-2025 16:3011.470
25-04-2025 16:2011.16-0
25-04-2025 16:1010.830.01
25-04-2025 16:0010.480.03
25-04-2025 15:5010.120.05
25-04-2025 15:409.730.07
25-04-2025 15:309.330.08
25-04-2025 15:208.910.1
25-04-2025 15:108.450.08
25-04-2025 15:0080.06
25-04-2025 14:507.550.04
25-04-2025 14:407.120.05
25-04-2025 14:306.690.06
25-04-2025 14:206.250.04
25-04-2025 14:105.810.03
25-04-2025 14:005.440.07
25-04-2025 13:505.060.09
25-04-2025 13:404.660.08
25-04-2025 13:304.230.02
25-04-2025 13:203.78-0.08
25-04-2025 13:103.33-0.2
25-04-2025 13:002.87-0.37
25-04-2025 12:502.48-0.49
25-04-2025 12:402.17-0.56
25-04-2025 12:301.87-0.66
25-04-2025 12:201.54-0.83
25-04-2025 12:101.34-0.91
25-04-2025 12:001.28-0.88
25-04-2025 11:501.33-0.78
25-04-2025 11:401.41-0.69
25-04-2025 11:301.53-0.6
25-04-2025 11:201.69-0.49
25-04-2025 11:101.83-0.43
25-04-2025 11:002-0.37
25-04-2025 10:502.2-0.3
25-04-2025 10:402.41-0.24
25-04-2025 10:302.63-0.19
25-04-2025 10:202.83-0.16
25-04-2025 10:103.1-0.08
25-04-2025 10:003.380.01
25-04-2025 09:503.650.07
25-04-2025 09:403.950.14
25-04-2025 09:304.240.21
25-04-2025 09:204.520.25
25-04-2025 09:104.810.3
25-04-2025 09:005.10.32
25-04-2025 08:505.410.36
25-04-2025 08:405.720.37
25-04-2025 08:306.010.36
25-04-2025 08:206.320.35
25-04-2025 08:106.620.32
25-04-2025 08:006.940.29
25-04-2025 07:507.260.25
25-04-2025 07:407.580.2
25-04-2025 07:307.920.16
25-04-2025 07:208.260.11
25-04-2025 07:108.610.08
25-04-2025 07:008.980.06
25-04-2025 06:509.340.04
25-04-2025 06:409.710.04
25-04-2025 06:3010.070.04
25-04-2025 06:2010.420.05
25-04-2025 06:1010.760.07
25-04-2025 06:0011.110.13
25-04-2025 05:5011.370.14
25-04-2025 05:4011.630.18
25-04-2025 05:3011.850.23
25-04-2025 05:2011.990.24
25-04-2025 05:1012.080.24
25-04-2025 05:0012.110.23
25-04-2025 04:5012.070.21
25-04-2025 04:4011.970.17
25-04-2025 04:3011.820.13
25-04-2025 04:2011.640.1
25-04-2025 04:1011.430.09
25-04-2025 04:0011.20.1
25-04-2025 03:5010.930.09
25-04-2025 03:4010.620.09
25-04-2025 03:3010.290.08
25-04-2025 03:209.970.1
25-04-2025 03:109.610.1
25-04-2025 03:009.250.1
25-04-2025 02:508.860.09
25-04-2025 02:408.470.09
25-04-2025 02:308.060.06
25-04-2025 02:207.650.03
25-04-2025 02:107.240.01