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
07-06-2026 23:4010.810.15
 Next HWNext LW
12:12, 10.5 06:03, 3.04
Date Highest 2026 Date Lowest 2026
04-02 14.02m 21-03 0.33m
Time (GMT)ElevationResidual
14-07-2024 00:0010.65-0.12
13-07-2024 23:5010.68-0.12
13-07-2024 23:4010.65-0.13
13-07-2024 23:3010.59-0.14
13-07-2024 23:2010.51-0.15
13-07-2024 23:1010.4-0.16
13-07-2024 23:0010.26-0.16
13-07-2024 22:5010.1-0.16
13-07-2024 22:409.93-0.14
13-07-2024 22:309.74-0.13
13-07-2024 22:209.52-0.13
13-07-2024 22:109.28-0.12
13-07-2024 22:009.06-0.09
13-07-2024 21:508.8-0.07
13-07-2024 21:408.54-0.05
13-07-2024 21:308.27-0.03
13-07-2024 21:208-0
13-07-2024 21:107.710.02
13-07-2024 21:007.440.06
13-07-2024 20:507.150.09
13-07-2024 20:406.870.13
13-07-2024 20:306.60.18
13-07-2024 20:206.330.24
13-07-2024 20:106.040.26
13-07-2024 20:005.750.29
13-07-2024 19:505.470.32
13-07-2024 19:405.190.34
13-07-2024 19:304.90.34
13-07-2024 19:204.60.31
13-07-2024 19:104.280.24
13-07-2024 19:003.970.17
13-07-2024 18:503.670.08
13-07-2024 18:403.420.01
13-07-2024 18:303.18-0.07
13-07-2024 18:202.97-0.17
13-07-2024 18:102.8-0.24
13-07-2024 18:002.74-0.25
13-07-2024 17:502.76-0.2
13-07-2024 17:402.83-0.14
13-07-2024 17:302.94-0.07
13-07-2024 17:203.07-0.02
13-07-2024 17:103.220.04
13-07-2024 17:003.40.09
13-07-2024 16:503.590.14
13-07-2024 16:403.80.17
13-07-2024 16:3040.19
13-07-2024 16:204.230.2
13-07-2024 16:104.460.22
13-07-2024 16:004.70.24
13-07-2024 15:504.940.23
13-07-2024 15:405.190.23
13-07-2024 15:305.440.23
13-07-2024 15:205.70.22
13-07-2024 15:105.970.22
13-07-2024 15:006.230.2
13-07-2024 14:506.50.2
13-07-2024 14:406.770.18
13-07-2024 14:307.050.17
13-07-2024 14:207.350.18
13-07-2024 14:107.630.15
13-07-2024 14:007.930.15
13-07-2024 13:508.220.15
13-07-2024 13:408.510.13
13-07-2024 13:308.80.13
13-07-2024 13:209.070.12
13-07-2024 13:109.360.13
13-07-2024 13:009.650.15
13-07-2024 12:509.910.17
13-07-2024 12:4010.160.19
13-07-2024 12:3010.380.21
13-07-2024 12:2010.560.22
13-07-2024 12:1010.70.22
13-07-2024 12:0010.80.2
13-07-2024 11:5010.850.18
13-07-2024 11:4010.860.14
13-07-2024 11:3010.820.1
13-07-2024 11:2010.760.05
13-07-2024 11:1010.650
13-07-2024 11:0010.5-0.05
13-07-2024 10:5010.34-0.1
13-07-2024 10:4010.15-0.13
13-07-2024 10:309.96-0.15
13-07-2024 10:209.72-0.19
13-07-2024 10:109.48-0.21
13-07-2024 10:009.22-0.23
13-07-2024 09:508.95-0.24
13-07-2024 09:408.67-0.25
13-07-2024 09:308.38-0.26
13-07-2024 09:208.11-0.24
13-07-2024 09:107.81-0.23
13-07-2024 09:007.53-0.21
13-07-2024 08:507.22-0.2
13-07-2024 08:406.94-0.16
13-07-2024 08:306.66-0.11
13-07-2024 08:206.37-0.07
13-07-2024 08:106.09-0.02
13-07-2024 08:005.790.01
13-07-2024 07:505.530.07
13-07-2024 07:405.260.12
13-07-2024 07:304.970.14
13-07-2024 07:204.670.15
13-07-2024 07:104.350.11
13-07-2024 07:004.020.06
13-07-2024 06:503.7-0.02
13-07-2024 06:403.39-0.1
13-07-2024 06:303.13-0.17
13-07-2024 06:202.9-0.22
13-07-2024 06:102.66-0.32
13-07-2024 06:002.48-0.4
13-07-2024 05:502.41-0.4
13-07-2024 05:402.44-0.32
13-07-2024 05:302.51-0.24
13-07-2024 05:202.63-0.15
13-07-2024 05:102.76-0.08
13-07-2024 05:002.92-0.01
13-07-2024 04:503.090.04
13-07-2024 04:403.280.09
13-07-2024 04:303.480.14
13-07-2024 04:203.710.19
13-07-2024 04:103.950.22
13-07-2024 04:004.180.25
13-07-2024 03:504.420.26
13-07-2024 03:404.670.27
13-07-2024 03:304.910.28
13-07-2024 03:205.160.28
13-07-2024 03:105.410.27
13-07-2024 03:005.680.26
13-07-2024 02:505.950.26
13-07-2024 02:406.220.24
13-07-2024 02:306.480.21
13-07-2024 02:206.740.18
13-07-2024 02:107.020.15
13-07-2024 02:007.310.13
13-07-2024 01:507.60.09
13-07-2024 01:407.890.05
13-07-2024 01:308.180.02
13-07-2024 01:208.47-0.02
13-07-2024 01:108.77-0.05
13-07-2024 01:009.06-0.07
13-07-2024 00:509.35-0.09
13-07-2024 00:409.63-0.11
13-07-2024 00:309.91-0.11
13-07-2024 00:2010.18-0.09
13-07-2024 00:1010.41-0.09