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
11-07-2025 09:309-0.48
 Next HWNext LW
19:53, 12.44 14:13, 1.99
Date Highest 2025 Date Lowest 2025
27-04 15.33m 31-03 0.03m
Time (GMT)ElevationResidual
11-07-2025 09:309-0.48
11-07-2025 09:209.34-0.49
11-07-2025 09:109.68-0.48
11-07-2025 09:0010-0.48
11-07-2025 08:5010.35-0.43
11-07-2025 08:4010.68-0.39
11-07-2025 08:3011-0.32
11-07-2025 08:2011.29-0.25
11-07-2025 08:1011.54-0.18
11-07-2025 08:0011.75-0.12
11-07-2025 07:5011.88-0.08
11-07-2025 07:4011.96-0.05
11-07-2025 07:3011.98-0.03
11-07-2025 07:2011.93-0.03
11-07-2025 07:1011.8-0.06
11-07-2025 07:0011.65-0.07
11-07-2025 06:5011.46-0.06
11-07-2025 06:4011.24-0.06
11-07-2025 06:3010.99-0.03
11-07-2025 06:2010.69-0.03
11-07-2025 06:1010.37-0.02
11-07-2025 06:0010.040.01
11-07-2025 05:509.680.02
11-07-2025 05:409.330.05
11-07-2025 05:308.940.07
11-07-2025 05:208.550.09
11-07-2025 05:108.130.09
11-07-2025 05:007.70.08
11-07-2025 04:507.290.09
11-07-2025 04:406.90.13
11-07-2025 04:306.520.18
11-07-2025 04:206.140.23
11-07-2025 04:105.740.26
11-07-2025 04:005.410.34
11-07-2025 03:505.080.42
11-07-2025 03:404.740.47
11-07-2025 03:304.360.47
11-07-2025 03:203.980.45
11-07-2025 03:103.60.4
11-07-2025 03:003.190.29
11-07-2025 02:502.850.21
11-07-2025 02:402.570.15
11-07-2025 02:302.250.02
11-07-2025 02:201.95-0.15
11-07-2025 02:101.76-0.24
11-07-2025 02:001.72-0.22
11-07-2025 01:501.77-0.16
11-07-2025 01:401.86-0.11
11-07-2025 01:301.97-0.07
11-07-2025 01:202.13-0.02
11-07-2025 01:102.310.01
11-07-2025 01:002.490.02
11-07-2025 00:502.690.03
11-07-2025 00:402.910.04
11-07-2025 00:303.140.02
11-07-2025 00:203.380.02
11-07-2025 00:103.640.01
11-07-2025 00:003.920.01
10-07-2025 23:504.20.01
10-07-2025 23:404.47-0.02
10-07-2025 23:304.76-0.03
10-07-2025 23:205.04-0.06
10-07-2025 23:105.33-0.08
10-07-2025 23:005.62-0.11
10-07-2025 22:505.92-0.14
10-07-2025 22:406.21-0.19
10-07-2025 22:306.5-0.23
10-07-2025 22:206.81-0.27
10-07-2025 22:107.11-0.31
10-07-2025 22:007.41-0.36
10-07-2025 21:507.72-0.41
10-07-2025 21:408.04-0.44
10-07-2025 21:308.37-0.47
10-07-2025 21:208.7-0.5
10-07-2025 21:109.04-0.51
10-07-2025 21:009.39-0.5
10-07-2025 20:509.73-0.49
10-07-2025 20:4010.07-0.48
10-07-2025 20:3010.4-0.44
10-07-2025 20:2010.75-0.38
10-07-2025 20:1011.07-0.31
10-07-2025 20:0011.37-0.24
10-07-2025 19:5011.63-0.16
10-07-2025 19:4011.85-0.1
10-07-2025 19:3012.01-0.04
10-07-2025 19:2012.120.01
10-07-2025 19:1012.160.03
10-07-2025 19:0012.140.04
10-07-2025 18:5012.060.04
10-07-2025 18:4011.910.01
10-07-2025 18:3011.740.01
10-07-2025 18:2011.550.03
10-07-2025 18:1011.320.05
10-07-2025 18:0011.040.06
10-07-2025 17:5010.720.05
10-07-2025 17:4010.40.06
10-07-2025 17:3010.050.07
10-07-2025 17:209.680.08
10-07-2025 17:109.30.09
10-07-2025 17:008.90.09
10-07-2025 16:508.50.1
10-07-2025 16:408.080.09
10-07-2025 16:307.660.09
10-07-2025 16:207.250.11
10-07-2025 16:106.880.15
10-07-2025 16:006.50.19
10-07-2025 15:506.120.23
10-07-2025 15:405.760.28
10-07-2025 15:305.430.36
10-07-2025 15:205.110.42
10-07-2025 15:104.770.45
10-07-2025 15:004.410.45
10-07-2025 14:504.030.4
10-07-2025 14:403.670.33
10-07-2025 14:303.30.23
10-07-2025 14:202.990.15
10-07-2025 14:102.720.08
10-07-2025 14:002.42-0.06
10-07-2025 13:502.15-0.22
10-07-2025 13:402.02-0.27
10-07-2025 13:302.01-0.26
10-07-2025 13:202.07-0.2
10-07-2025 13:102.17-0.14
10-07-2025 13:002.31-0.09
10-07-2025 12:502.44-0.07
10-07-2025 12:402.6-0.04
10-07-2025 12:302.79-0.02
10-07-2025 12:2030.01
10-07-2025 12:103.220.02
10-07-2025 12:003.430
10-07-2025 11:503.670.01
10-07-2025 11:403.930.01
10-07-2025 11:304.20.02
10-07-2025 11:204.470.02
10-07-2025 11:104.73-0.01
10-07-2025 11:004.98-0.04
10-07-2025 10:505.27-0.06
10-07-2025 10:405.53-0.1
10-07-2025 10:305.81-0.13
10-07-2025 10:206.07-0.18
10-07-2025 10:106.36-0.22
10-07-2025 10:006.64-0.27
10-07-2025 09:506.93-0.31
10-07-2025 09:407.21-0.36
10-07-2025 09:307.51-0.39
10-07-2025 09:207.81-0.43
10-07-2025 09:108.13-0.45
10-07-2025 09:008.43-0.47
10-07-2025 08:508.73-0.5
10-07-2025 08:409.05-0.5
10-07-2025 08:309.37-0.48
10-07-2025 08:209.68-0.46
10-07-2025 08:109.99-0.43
10-07-2025 08:0010.32-0.36
10-07-2025 07:5010.61-0.31
10-07-2025 07:4010.89-0.23
10-07-2025 07:3011.13-0.16
10-07-2025 07:2011.31-0.11
10-07-2025 07:1011.46-0.07
10-07-2025 07:0011.55-0.03
10-07-2025 06:5011.59-0.01
10-07-2025 06:4011.56-0.01
10-07-2025 06:3011.48-0.02
10-07-2025 06:2011.36-0.03
10-07-2025 06:1011.2-0.04
10-07-2025 06:0011.02-0.03
10-07-2025 05:5010.8-0.01
10-07-2025 05:4010.54-0.02
10-07-2025 05:3010.26-0.02
10-07-2025 05:209.970
10-07-2025 05:109.660.03
10-07-2025 05:009.340.04
10-07-2025 04:509.020.09
10-07-2025 04:408.670.1
10-07-2025 04:308.30.12
10-07-2025 04:207.930.13
10-07-2025 04:107.550.13
10-07-2025 04:007.190.17
10-07-2025 03:506.820.19
10-07-2025 03:406.470.24
10-07-2025 03:306.130.29
10-07-2025 03:205.770.32
10-07-2025 03:105.450.38
10-07-2025 03:005.140.45
10-07-2025 02:504.810.48
10-07-2025 02:404.470.48
10-07-2025 02:304.110.44
10-07-2025 02:203.750.37
10-07-2025 02:103.380.26
10-07-2025 02:003.050.17
10-07-2025 01:502.780.09
10-07-2025 01:402.48-0.05
10-07-2025 01:302.21-0.2
10-07-2025 01:202.05-0.29
10-07-2025 01:102-0.3
10-07-2025 01:002.04-0.25
10-07-2025 00:502.12-0.22
10-07-2025 00:402.24-0.17
10-07-2025 00:302.39-0.12
10-07-2025 00:202.56-0.08
10-07-2025 00:102.74-0.05
10-07-2025 00:002.94-0.03
09-07-2025 23:503.15-0.02
09-07-2025 23:403.390.01
09-07-2025 23:303.630.01
09-07-2025 23:203.870.02
09-07-2025 23:104.160.05
09-07-2025 23:004.430.05
09-07-2025 22:504.70.04
09-07-2025 22:404.980.04
09-07-2025 22:305.23-0.01
09-07-2025 22:205.53-0.02
09-07-2025 22:105.8-0.06
09-07-2025 22:006.08-0.1
09-07-2025 21:506.37-0.14
09-07-2025 21:406.67-0.17
09-07-2025 21:306.96-0.23
09-07-2025 21:207.26-0.27
09-07-2025 21:107.56-0.31
09-07-2025 21:007.87-0.34
09-07-2025 20:508.17-0.38
09-07-2025 20:408.49-0.4
09-07-2025 20:308.81-0.4
09-07-2025 20:209.12-0.42
09-07-2025 20:109.45-0.4
09-07-2025 20:009.76-0.38
09-07-2025 19:5010.08-0.34
09-07-2025 19:4010.39-0.29
09-07-2025 19:3010.7-0.21
09-07-2025 19:2010.97-0.15
09-07-2025 19:1011.21-0.08
09-07-2025 19:0011.42-0.02
09-07-2025 18:5011.580.03
09-07-2025 18:4011.690.07
09-07-2025 18:3011.750.1
09-07-2025 18:2011.740.1
09-07-2025 18:1011.680.09
09-07-2025 18:0011.580.08
09-07-2025 17:5011.440.07
09-07-2025 17:4011.260.06
09-07-2025 17:3011.050.06
09-07-2025 17:2010.820.06
09-07-2025 17:1010.550.06
09-07-2025 17:0010.270.07
09-07-2025 16:509.970.08
09-07-2025 16:409.660.1
09-07-2025 16:309.330.11
09-07-2025 16:208.990.12
09-07-2025 16:108.640.14
09-07-2025 16:008.280.15
09-07-2025 15:507.920.16
09-07-2025 15:407.540.16
09-07-2025 15:307.170.17
09-07-2025 15:206.830.21
09-07-2025 15:106.50.25
09-07-2025 15:006.150.29
09-07-2025 14:505.820.32
09-07-2025 14:405.520.38
09-07-2025 14:305.220.43
09-07-2025 14:204.90.44
09-07-2025 14:104.590.44
09-07-2025 14:004.280.43
09-07-2025 13:503.940.35
09-07-2025 13:403.620.26
09-07-2025 13:303.330.18
09-07-2025 13:203.070.09
09-07-2025 13:102.83-0.02
09-07-2025 13:002.61-0.14
09-07-2025 12:502.46-0.23
09-07-2025 12:402.41-0.25
09-07-2025 12:302.43-0.25
09-07-2025 12:202.49-0.23
09-07-2025 12:102.59-0.19
09-07-2025 12:002.71-0.17
09-07-2025 11:502.86-0.15
09-07-2025 11:403.02-0.13
09-07-2025 11:303.22-0.1
09-07-2025 11:203.41-0.09
09-07-2025 11:103.61-0.09
09-07-2025 11:003.83-0.07
09-07-2025 10:504.08-0.05
09-07-2025 10:404.32-0.04
09-07-2025 10:304.59-0.02
09-07-2025 09:405.83-0.14
09-07-2025 09:306.1-0.18
09-07-2025 09:206.36-0.22
09-07-2025 09:106.62-0.26