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
15-12-2025 10:103.36-0.25
 Next HWNext LW
15:44, 10.71 22:21, 3.39
Date Highest 2025 Date Lowest 2025
27-04 15.33m 31-03 0.03m
Time (GMT)ElevationResidual
15-12-2025 10:103.36-0.25
15-12-2025 10:003.23-0.32
15-12-2025 09:503.16-0.38
15-12-2025 09:403.15-0.39
15-12-2025 09:303.19-0.38
15-12-2025 09:203.25-0.36
15-12-2025 09:103.36-0.32
15-12-2025 09:003.49-0.27
15-12-2025 08:503.63-0.22
15-12-2025 08:403.8-0.16
15-12-2025 08:303.98-0.09
15-12-2025 08:204.19-0.01
15-12-2025 08:104.390.06
15-12-2025 08:004.60.12
15-12-2025 07:504.840.19
15-12-2025 07:405.060.24
15-12-2025 07:305.30.3
15-12-2025 07:205.570.36
15-12-2025 07:105.830.41
15-12-2025 07:006.070.42
15-12-2025 06:506.340.44
15-12-2025 06:406.590.43
15-12-2025 06:306.850.43
15-12-2025 06:207.10.4
15-12-2025 06:107.370.38
15-12-2025 06:007.640.36
15-12-2025 05:507.920.36
15-12-2025 05:408.190.34
15-12-2025 05:308.470.33
15-12-2025 05:208.740.33
15-12-2025 05:109.020.34
15-12-2025 05:009.260.32
15-12-2025 04:509.510.33
15-12-2025 04:409.760.36
15-12-2025 04:309.970.36
15-12-2025 04:2010.180.39
15-12-2025 04:1010.330.37
15-12-2025 04:0010.450.36
15-12-2025 03:5010.570.36
15-12-2025 03:4010.660.36
15-12-2025 03:3010.70.35
15-12-2025 03:2010.710.33
15-12-2025 03:1010.690.32
15-12-2025 03:0010.650.3
15-12-2025 02:5010.570.28
15-12-2025 02:4010.470.27
15-12-2025 02:3010.340.26
15-12-2025 02:2010.20.26
15-12-2025 02:1010.040.26
15-12-2025 02:009.860.27
15-12-2025 01:509.670.28
15-12-2025 01:409.450.28
15-12-2025 01:309.210.27
15-12-2025 01:208.990.29
15-12-2025 01:108.760.32
15-12-2025 01:008.520.33
15-12-2025 00:508.270.35
15-12-2025 00:408.030.38
15-12-2025 00:307.780.41
15-12-2025 00:207.540.45
15-12-2025 00:107.30.5
15-12-2025 00:007.060.53
14-12-2025 23:506.820.58
14-12-2025 23:406.590.63
14-12-2025 23:306.370.68
14-12-2025 23:206.140.71
14-12-2025 23:105.920.75
14-12-2025 23:005.690.77
14-12-2025 22:505.460.77
14-12-2025 22:405.240.76
14-12-2025 22:305.020.74
14-12-2025 22:204.80.68
14-12-2025 22:104.590.62
14-12-2025 22:004.390.53
14-12-2025 21:504.20.44
14-12-2025 21:404.030.33
14-12-2025 21:303.880.22
14-12-2025 21:203.750.11
14-12-2025 21:103.660.02
14-12-2025 21:003.6-0.07
14-12-2025 20:503.6-0.11
14-12-2025 20:403.61-0.16
14-12-2025 20:303.67-0.17
14-12-2025 20:203.77-0.15
14-12-2025 20:103.9-0.13
14-12-2025 20:004.03-0.11
14-12-2025 19:504.19-0.06
14-12-2025 19:404.37-0.02
14-12-2025 19:304.550.02
14-12-2025 19:204.750.07
14-12-2025 19:104.940.09
14-12-2025 19:005.160.12
14-12-2025 18:505.370.13
14-12-2025 18:405.60.14
14-12-2025 18:305.830.14
14-12-2025 18:206.080.14
14-12-2025 18:106.320.12
14-12-2025 18:006.580.12
14-12-2025 17:506.820.08
14-12-2025 17:407.070.05
14-12-2025 17:307.340.02
14-12-2025 17:207.58-0.03
14-12-2025 17:107.84-0.06
14-12-2025 17:008.12-0.07
14-12-2025 16:508.38-0.08
14-12-2025 16:408.65-0.08
14-12-2025 16:308.92-0.08
14-12-2025 16:209.17-0.07
14-12-2025 16:109.42-0.05
14-12-2025 16:009.67-0.01
14-12-2025 15:509.90.03
14-12-2025 15:4010.10.06
14-12-2025 15:3010.270.08
14-12-2025 15:2010.420.1
14-12-2025 15:1010.540.11
14-12-2025 15:0010.630.13
14-12-2025 14:5010.680.14
14-12-2025 14:4010.720.16
14-12-2025 14:3010.70.15
14-12-2025 14:2010.670.16
14-12-2025 14:1010.60.16
14-12-2025 14:0010.50.16
14-12-2025 13:5010.380.15
14-12-2025 13:4010.230.16
14-12-2025 13:3010.070.16
14-12-2025 13:209.90.18
14-12-2025 13:109.690.17
14-12-2025 13:009.470.17
14-12-2025 12:509.240.17
14-12-2025 12:4090.18
14-12-2025 12:308.750.19
14-12-2025 12:208.490.2
14-12-2025 12:108.230.21
14-12-2025 12:007.980.24
14-12-2025 11:507.70.25
14-12-2025 11:407.440.28
14-12-2025 11:307.160.29
14-12-2025 11:206.90.32
14-12-2025 11:106.630.35
14-12-2025 11:006.370.37
14-12-2025 10:506.110.4
14-12-2025 10:405.850.41
14-12-2025 10:305.60.42
14-12-2025 10:205.360.42
14-12-2025 10:105.120.41
14-12-2025 10:004.880.38
14-12-2025 09:504.620.3
14-12-2025 09:404.40.23
14-12-2025 09:304.170.14
14-12-2025 09:203.960.04
14-12-2025 09:103.79-0.05
14-12-2025 09:003.62-0.16
14-12-2025 08:503.48-0.26
14-12-2025 08:403.4-0.32
14-12-2025 08:303.36-0.37
14-12-2025 08:203.37-0.37
14-12-2025 08:103.42-0.36
14-12-2025 08:003.5-0.33
14-12-2025 07:503.61-0.28
14-12-2025 07:403.73-0.24
14-12-2025 07:303.9-0.17
14-12-2025 07:204.05-0.12
14-12-2025 07:104.23-0.06
14-12-2025 07:004.42-0.01
14-12-2025 06:504.620.05
14-12-2025 06:404.830.1
14-12-2025 06:305.040.12
14-12-2025 06:205.250.13
14-12-2025 06:105.470.14
14-12-2025 06:005.710.15
14-12-2025 05:505.950.14
14-12-2025 05:406.20.15
14-12-2025 05:306.450.13
14-12-2025 05:206.690.11
14-12-2025 05:106.960.09
14-12-2025 05:007.210.07
14-12-2025 04:507.460.05
14-12-2025 04:407.730.03
14-12-2025 04:307.980.02
14-12-2025 04:208.23-0
14-12-2025 04:108.48-0.01
14-12-2025 04:008.7-0.03
14-12-2025 03:508.93-0.04
14-12-2025 03:409.18-0.01
14-12-2025 03:309.39-0.01
14-12-2025 03:209.620.03
14-12-2025 03:109.820.06
14-12-2025 03:009.970.07
14-12-2025 02:5010.090.06
14-12-2025 02:4010.190.06
14-12-2025 02:3010.260.06
14-12-2025 02:2010.280.03
14-12-2025 02:1010.280.01
14-12-2025 02:0010.270.01
14-12-2025 01:5010.21-0
14-12-2025 01:4010.13-0.01
14-12-2025 01:3010.03-0.01
14-12-2025 01:209.920.01
14-12-2025 01:109.790.03
14-12-2025 01:009.640.05
14-12-2025 00:509.480.08
14-12-2025 00:409.290.09
14-12-2025 00:309.080.12
14-12-2025 00:208.890.16
14-12-2025 00:108.680.2
14-12-2025 00:008.460.23
13-12-2025 23:508.240.27
13-12-2025 23:408.020.32
13-12-2025 23:307.780.36
13-12-2025 23:207.540.4
13-12-2025 23:107.310.44
13-12-2025 23:007.060.47
13-12-2025 22:506.810.5
13-12-2025 22:406.560.52
13-12-2025 22:306.320.55
13-12-2025 22:206.070.56
13-12-2025 22:105.830.58
13-12-2025 22:005.590.58
13-12-2025 21:505.370.58
13-12-2025 21:405.140.56
13-12-2025 21:304.920.54
13-12-2025 21:204.690.47
13-12-2025 21:104.450.38
13-12-2025 21:004.230.28
13-12-2025 20:504.010.16
13-12-2025 20:403.810.04
13-12-2025 20:303.65-0.07
13-12-2025 20:203.48-0.21
13-12-2025 20:103.36-0.32
13-12-2025 20:003.26-0.42
13-12-2025 19:503.24-0.47
13-12-2025 19:403.27-0.49
13-12-2025 19:303.32-0.49
13-12-2025 19:203.42-0.46
13-12-2025 19:103.54-0.43
13-12-2025 19:003.68-0.4
13-12-2025 18:503.85-0.35
13-12-2025 18:404.04-0.29
13-12-2025 18:304.23-0.25
13-12-2025 18:204.45-0.2
13-12-2025 18:104.66-0.17
13-12-2025 18:004.89-0.13
13-12-2025 17:505.11-0.12
13-12-2025 17:405.34-0.12
13-12-2025 17:305.6-0.09
13-12-2025 17:205.86-0.09
13-12-2025 17:106.12-0.09
13-12-2025 17:006.38-0.09
13-12-2025 16:506.64-0.11
13-12-2025 16:406.9-0.13
13-12-2025 16:307.16-0.14
13-12-2025 16:207.42-0.16
13-12-2025 16:107.69-0.17
13-12-2025 16:007.96-0.17
13-12-2025 15:508.24-0.17
13-12-2025 15:408.5-0.17
13-12-2025 15:308.77-0.15
13-12-2025 15:209.03-0.13
13-12-2025 15:109.28-0.11
13-12-2025 15:009.52-0.09
13-12-2025 14:509.76-0.05
13-12-2025 14:409.98-0.03
13-12-2025 14:3010.17-0
13-12-2025 14:2010.330.02
13-12-2025 14:1010.470.04
13-12-2025 14:0010.570.04
13-12-2025 13:5010.650.06
13-12-2025 13:4010.690.06
13-12-2025 13:3010.70.06
13-12-2025 13:2010.670.06
13-12-2025 13:1010.610.05
13-12-2025 13:0010.510.04
13-12-2025 12:5010.390.03
13-12-2025 12:4010.240.02
13-12-2025 12:3010.070.02
13-12-2025 12:209.890.02
13-12-2025 12:109.690.02
13-12-2025 12:009.480.04
13-12-2025 11:509.240.04
13-12-2025 11:409.010.06
13-12-2025 11:308.780.08
13-12-2025 11:208.520.1
13-12-2025 11:108.270.12
13-12-2025 11:0080.14
13-12-2025 10:507.720.15
13-12-2025 10:407.450.17
13-12-2025 10:307.170.19
13-12-2025 10:206.90.22
13-12-2025 10:106.630.24