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

 


Latest Tide Data (Predicted Tide Table)

Time (GMT)ElevationResidual
11-10-2026 06:1011.37-0.28
 Next HWNext LW
07:29, 13.86 14:08, 0.69
Date Highest 2026 Date Lowest 2026
29-09 14.09m 21-03 0.33m
Time (GMT)ElevationResidual
11-10-2026 06:1011.37-0.28
11-10-2026 06:0010.93-0.2
11-10-2026 05:5010.46-0.12
11-10-2026 05:409.95-0.06
11-10-2026 05:309.39-0.03
11-10-2026 05:208.840
11-10-2026 05:108.280.02
11-10-2026 05:007.720.04
11-10-2026 04:507.180.08
11-10-2026 04:406.670.12
11-10-2026 04:306.130.12
11-10-2026 04:205.660.17
11-10-2026 04:105.220.24
11-10-2026 04:004.750.27
11-10-2026 03:504.30.29
11-10-2026 03:403.80.25
11-10-2026 03:303.310.2
11-10-2026 03:202.780.09
11-10-2026 03:102.350.05
11-10-2026 03:002.030.1
11-10-2026 02:501.56-0.05
11-10-2026 02:401.12-0.21
11-10-2026 02:300.96-0.12
11-10-2026 02:200.980.08
11-10-2026 02:101.070.32
11-10-2026 02:001.190.51
11-10-2026 01:501.330.67
11-10-2026 01:401.520.81
11-10-2026 01:301.680.87
11-10-2026 01:201.890.91
11-10-2026 01:102.120.93
11-10-2026 01:002.340.89
11-10-2026 00:502.590.83
11-10-2026 00:402.840.75
11-10-2026 00:303.110.65
11-10-2026 00:203.390.55
11-10-2026 00:103.680.44
11-10-2026 00:003.980.35
10-10-2026 23:504.290.26
10-10-2026 23:404.580.17
10-10-2026 23:304.890.1
10-10-2026 23:205.210.04
10-10-2026 23:105.530
10-10-2026 23:005.85-0.04
10-10-2026 22:506.18-0.07
10-10-2026 22:406.5-0.09
10-10-2026 22:306.84-0.1
10-10-2026 22:207.18-0.12
10-10-2026 22:107.51-0.15
10-10-2026 22:007.86-0.17
10-10-2026 21:508.21-0.2
10-10-2026 21:408.56-0.25
10-10-2026 21:308.93-0.3
10-10-2026 21:209.32-0.34
10-10-2026 21:109.72-0.38
10-10-2026 21:0010.13-0.41
10-10-2026 20:5010.58-0.41
10-10-2026 20:4011.01-0.43
10-10-2026 20:3011.43-0.44
10-10-2026 20:2011.87-0.41
10-10-2026 20:1012.28-0.38
10-10-2026 20:0012.65-0.36
10-10-2026 19:5012.94-0.37
10-10-2026 19:4013.21-0.34
10-10-2026 19:3013.44-0.3
10-10-2026 19:2013.58-0.29
10-10-2026 19:1013.62-0.31
10-10-2026 19:0013.54-0.36
10-10-2026 18:5013.42-0.39
10-10-2026 18:4013.22-0.42
10-10-2026 18:3012.99-0.42
10-10-2026 18:2012.72-0.39
10-10-2026 18:1012.39-0.36
10-10-2026 18:0011.99-0.33
10-10-2026 17:5011.59-0.27
10-10-2026 17:4011.16-0.2
10-10-2026 17:3010.7-0.12
10-10-2026 17:2010.19-0.07
10-10-2026 17:109.67-0.03
10-10-2026 17:009.11-0
10-10-2026 16:508.570.04
10-10-2026 16:4080.05
10-10-2026 16:307.480.09
10-10-2026 16:206.950.12
10-10-2026 16:106.440.16
10-10-2026 16:005.920.17
10-10-2026 15:505.490.26
10-10-2026 15:405.050.32
10-10-2026 15:304.610.38
10-10-2026 15:204.150.38
10-10-2026 15:103.660.34
10-10-2026 15:003.140.25
10-10-2026 14:502.680.19
10-10-2026 14:402.30.19
10-10-2026 14:301.90.12
10-10-2026 14:201.42-0.07
10-10-2026 14:101.16-0.07
10-10-2026 14:001.130.11
10-10-2026 13:501.210.33
10-10-2026 13:401.320.53
10-10-2026 13:301.470.71
10-10-2026 13:201.620.84
10-10-2026 13:101.80.93
10-10-2026 13:0020.99
10-10-2026 12:502.231.02
10-10-2026 12:402.451
10-10-2026 12:302.690.96
10-10-2026 12:202.960.91
10-10-2026 12:103.230.83
10-10-2026 12:003.510.75
10-10-2026 11:503.80.66
10-10-2026 11:404.10.57
10-10-2026 11:304.410.49
10-10-2026 11:204.720.41
10-10-2026 11:105.040.35
10-10-2026 11:005.350.28
10-10-2026 10:505.660.22
10-10-2026 10:405.990.18
10-10-2026 10:306.310.14
10-10-2026 10:206.650.11
10-10-2026 10:106.970.07
10-10-2026 10:007.320.04
10-10-2026 09:507.64-0.02
10-10-2026 09:407.98-0.06
10-10-2026 09:308.33-0.11
10-10-2026 09:208.67-0.17
10-10-2026 09:109.05-0.21
10-10-2026 09:009.44-0.24
10-10-2026 08:509.84-0.28
10-10-2026 08:4010.27-0.28
10-10-2026 08:3010.7-0.28
10-10-2026 08:2011.12-0.28
10-10-2026 08:1011.54-0.27
10-10-2026 08:0011.96-0.23
10-10-2026 07:5012.36-0.18
10-10-2026 07:4012.67-0.18
10-10-2026 07:3012.96-0.16
10-10-2026 07:2013.21-0.12
10-10-2026 07:1013.35-0.13
10-10-2026 07:0013.4-0.18
10-10-2026 06:5013.34-0.26
10-10-2026 06:4013.22-0.34
10-10-2026 06:3013.04-0.41
10-10-2026 06:2012.82-0.44
10-10-2026 06:1012.55-0.45
10-10-2026 06:0012.23-0.45
10-10-2026 05:5011.87-0.43
10-10-2026 05:4011.47-0.4
10-10-2026 05:3011.06-0.33
10-10-2026 05:2010.62-0.26
10-10-2026 05:1010.14-0.19
10-10-2026 05:009.64-0.13
10-10-2026 04:509.12-0.07
10-10-2026 04:408.59-0.03
10-10-2026 04:308.04-0
10-10-2026 04:207.520.05
10-10-2026 04:107.020.11
10-10-2026 04:006.540.18
10-10-2026 03:506.040.21
10-10-2026 03:405.620.3
10-10-2026 03:305.220.39
10-10-2026 03:204.810.45
10-10-2026 03:104.410.5
10-10-2026 03:003.960.48
10-10-2026 02:503.520.44
10-10-2026 02:403.040.36
10-10-2026 02:302.640.31
10-10-2026 02:202.290.29
10-10-2026 02:101.960.25
10-10-2026 02:001.570.12
10-10-2026 01:501.330.1
10-10-2026 01:401.290.23
10-10-2026 01:301.340.39
10-10-2026 01:201.430.56
10-10-2026 01:101.570.71
10-10-2026 01:001.730.83
10-10-2026 00:501.890.89
10-10-2026 00:402.070.93
10-10-2026 00:302.280.94
10-10-2026 00:202.490.91
10-10-2026 00:102.710.85
10-10-2026 00:002.960.79
09-10-2026 23:503.20.69
09-10-2026 23:403.480.61
09-10-2026 23:303.770.52
09-10-2026 23:204.050.43
09-10-2026 23:104.340.34
09-10-2026 23:004.630.25
09-10-2026 22:504.920.16
09-10-2026 22:405.230.1
09-10-2026 22:305.530.04
09-10-2026 22:205.84-0.01
09-10-2026 22:106.15-0.07
09-10-2026 22:006.47-0.09
09-10-2026 21:506.79-0.13
09-10-2026 21:407.11-0.17
09-10-2026 21:307.43-0.22
09-10-2026 21:207.76-0.26
09-10-2026 21:108.09-0.32
09-10-2026 21:008.42-0.38
09-10-2026 20:508.76-0.44
09-10-2026 20:409.13-0.49
09-10-2026 20:309.49-0.54
09-10-2026 20:209.88-0.57
09-10-2026 20:1010.29-0.58
09-10-2026 20:0010.68-0.59
09-10-2026 19:5011.09-0.59
09-10-2026 19:4011.48-0.56
09-10-2026 19:3011.89-0.5
09-10-2026 19:2012.24-0.47
09-10-2026 19:1012.53-0.44
09-10-2026 19:0012.77-0.43
09-10-2026 18:5013-0.37
09-10-2026 18:4013.13-0.35
09-10-2026 18:3013.19-0.35
09-10-2026 18:2013.14-0.38
09-10-2026 18:1013.05-0.39
09-10-2026 18:0012.86-0.44
09-10-2026 17:5012.66-0.42
09-10-2026 17:4012.4-0.41
09-10-2026 17:3012.13-0.35
09-10-2026 17:2011.81-0.28
09-10-2026 17:1011.45-0.21
09-10-2026 17:0011.05-0.15
09-10-2026 16:5010.66-0.04
09-10-2026 16:4010.230.06
09-10-2026 16:309.780.14
09-10-2026 16:209.290.2
09-10-2026 16:108.80.27
09-10-2026 16:008.340.35
09-10-2026 15:507.830.39
09-10-2026 15:407.360.46
09-10-2026 15:306.930.54
09-10-2026 15:206.520.64
09-10-2026 15:106.070.68
09-10-2026 15:005.690.77
09-10-2026 14:505.320.86
09-10-2026 14:404.950.92
09-10-2026 14:304.530.91
09-10-2026 14:204.070.85
09-10-2026 14:103.630.78
09-10-2026 14:003.210.7
09-10-2026 13:502.840.63
09-10-2026 13:402.440.51
09-10-2026 13:302.060.37
09-10-2026 13:201.870.37
09-10-2026 13:101.750.4
09-10-2026 13:001.830.58
09-10-2026 12:501.860.65
09-10-2026 12:401.970.76
09-10-2026 12:302.130.87
09-10-2026 12:202.290.91
09-10-2026 12:102.480.95
09-10-2026 12:002.680.95
09-10-2026 11:502.90.93
09-10-2026 11:403.130.89
09-10-2026 11:303.390.86
09-10-2026 11:203.660.8
09-10-2026 11:103.940.74
09-10-2026 11:004.220.68
09-10-2026 10:504.510.61
09-10-2026 10:404.780.52
09-10-2026 10:305.070.44
09-10-2026 10:205.360.37
09-10-2026 10:105.640.3
09-10-2026 10:005.960.26
09-10-2026 09:506.270.22
09-10-2026 09:406.580.17
09-10-2026 09:306.890.13
09-10-2026 09:207.210.09
09-10-2026 09:107.550.07
09-10-2026 09:007.880.03
09-10-2026 08:508.21-0.02
09-10-2026 08:408.55-0.06
09-10-2026 08:308.92-0.08
09-10-2026 08:209.28-0.11
09-10-2026 08:109.65-0.13
09-10-2026 08:0010.06-0.11
09-10-2026 07:5010.45-0.1
09-10-2026 07:4010.84-0.09
09-10-2026 07:3011.26-0.03
09-10-2026 07:2011.660.04
09-10-2026 07:1012.030.1
09-10-2026 07:0012.350.14
09-10-2026 06:5012.590.14
09-10-2026 06:4012.840.19
09-10-2026 06:30130.21
09-10-2026 06:2013.070.19
09-10-2026 06:1013.070.15