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
19-01-2026 12:303.85-0.03
 Next HWNext LW
20:01, 12.39 14:22, 1.84
Date Highest 2026 Date Lowest 2026
06-01 13.49m 06-01 0.83m
Time (GMT)ElevationResidual
10-11-2025 00:009.250.07
09-11-2025 23:509.620.1
09-11-2025 23:40100.14
09-11-2025 23:3010.390.17
09-11-2025 23:2010.780.22
09-11-2025 23:1011.20.31
09-11-2025 23:0011.540.34
09-11-2025 22:5011.850.37
09-11-2025 22:4012.110.39
09-11-2025 22:3012.350.43
09-11-2025 22:2012.540.47
09-11-2025 22:1012.660.49
09-11-2025 22:0012.690.49
09-11-2025 21:5012.670.48
09-11-2025 21:4012.550.45
09-11-2025 21:3012.410.44
09-11-2025 21:2012.210.43
09-11-2025 21:1011.960.42
09-11-2025 21:0011.720.46
09-11-2025 20:5011.420.47
09-11-2025 20:4011.070.47
09-11-2025 20:3010.70.46
09-11-2025 20:2010.340.48
09-11-2025 20:109.960.49
09-11-2025 20:009.570.51
09-11-2025 19:509.150.5
09-11-2025 19:408.720.47
09-11-2025 19:308.30.47
09-11-2025 19:207.870.44
09-11-2025 19:107.440.43
09-11-2025 19:007.050.44
09-11-2025 18:506.640.45
09-11-2025 18:406.270.49
09-11-2025 18:305.890.52
09-11-2025 18:205.540.57
09-11-2025 18:105.190.62
09-11-2025 18:004.850.66
09-11-2025 17:504.440.63
09-11-2025 17:404.010.56
09-11-2025 17:303.60.47
09-11-2025 17:203.210.38
09-11-2025 17:102.870.31
09-11-2025 17:002.550.22
09-11-2025 16:502.210.06
09-11-2025 16:401.89-0.12
09-11-2025 16:301.75-0.17
09-11-2025 16:201.74-0.14
09-11-2025 16:101.8-0.09
09-11-2025 16:001.9-0.05
09-11-2025 15:502.03-0.03
09-11-2025 15:402.2-0.01
09-11-2025 15:302.38-0.03
09-11-2025 15:202.6-0.04
09-11-2025 15:102.8-0.1
09-11-2025 15:003.05-0.14
09-11-2025 14:503.28-0.21
09-11-2025 14:403.55-0.26
09-11-2025 14:303.81-0.32
09-11-2025 14:204.1-0.35
09-11-2025 14:104.36-0.4
09-11-2025 14:004.65-0.43
09-11-2025 13:504.94-0.44
09-11-2025 13:405.23-0.44
09-11-2025 13:305.52-0.43
09-11-2025 13:205.81-0.42
09-11-2025 13:106.11-0.38
09-11-2025 13:006.41-0.34
09-11-2025 12:506.72-0.28
09-11-2025 12:407.04-0.22
09-11-2025 12:307.36-0.18
09-11-2025 12:207.69-0.13
09-11-2025 12:108.02-0.1
09-11-2025 12:008.35-0.08
09-11-2025 11:508.71-0.06
09-11-2025 11:409.08-0.04
09-11-2025 11:309.44-0.06
09-11-2025 11:209.83-0.06
09-11-2025 11:1010.25-0.02
09-11-2025 11:0010.65-0.02
09-11-2025 10:5011.070.01
09-11-2025 10:4011.490.07
09-11-2025 10:3011.870.11
09-11-2025 10:2012.240.17
09-11-2025 10:1012.530.19
09-11-2025 10:0012.770.23
09-11-2025 09:5013.010.32
09-11-2025 09:4013.180.39
09-11-2025 09:3013.220.4
09-11-2025 09:2013.20.43
09-11-2025 09:1013.10.43
09-11-2025 09:0012.930.42
09-11-2025 08:5012.710.42
09-11-2025 08:4012.460.44
09-11-2025 08:3012.170.46
09-11-2025 08:2011.820.46
09-11-2025 08:1011.430.45
09-11-2025 08:0011.010.44
09-11-2025 07:5010.580.43
09-11-2025 07:4010.130.41
09-11-2025 07:309.660.39
09-11-2025 07:209.170.35
09-11-2025 07:108.680.32
09-11-2025 07:008.180.27
09-11-2025 06:507.690.24
09-11-2025 06:407.220.23
09-11-2025 06:306.770.24
09-11-2025 06:206.290.23
09-11-2025 06:105.850.26
09-11-2025 06:005.460.33
09-11-2025 05:505.060.38
09-11-2025 05:404.670.44
09-11-2025 05:304.170.38
09-11-2025 05:203.70.32
09-11-2025 05:103.210.22
09-11-2025 05:002.840.2
09-11-2025 04:502.470.15
09-11-2025 04:402.080.04
09-11-2025 04:301.66-0.16
09-11-2025 04:201.41-0.23
09-11-2025 04:101.37-0.15
09-11-2025 04:001.44-0.03
09-11-2025 03:501.550.08
09-11-2025 03:401.710.18
09-11-2025 03:301.870.23
09-11-2025 03:202.050.24
09-11-2025 03:102.230.21
09-11-2025 03:002.470.19
09-11-2025 02:502.70.13
09-11-2025 02:402.940.04
09-11-2025 02:303.18-0.06
09-11-2025 02:203.46-0.13
09-11-2025 02:103.76-0.19
09-11-2025 02:004.07-0.25
09-11-2025 01:504.38-0.29
09-11-2025 01:404.68-0.34
09-11-2025 01:304.98-0.38
09-11-2025 01:205.28-0.4
09-11-2025 01:105.6-0.39
09-11-2025 01:005.9-0.38
09-11-2025 00:506.22-0.35
09-11-2025 00:406.53-0.31
09-11-2025 00:306.85-0.27
09-11-2025 00:207.18-0.21
09-11-2025 00:107.51-0.17