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
12-02-2026 09:506.060.99
 Next HWNext LW
14:44, 9.16 20:43, 4.67
Date Highest 2026 Date Lowest 2026
04-02 14.02m 03-02 0.75m
Time (GMT)ElevationResidual
09-11-2025 00:007.85-0.13
08-11-2025 23:508.2-0.1
08-11-2025 23:408.55-0.08
08-11-2025 23:308.91-0.07
08-11-2025 23:209.29-0.06
08-11-2025 23:109.68-0.06
08-11-2025 23:0010.11-0.03
08-11-2025 22:5010.550
08-11-2025 22:4010.990.05
08-11-2025 22:3011.440.1
08-11-2025 22:2011.880.17
08-11-2025 22:1012.280.22
08-11-2025 22:0012.660.28
08-11-2025 21:5012.920.29
08-11-2025 21:4013.180.35
08-11-2025 21:3013.380.4
08-11-2025 21:2013.480.43
08-11-2025 21:1013.50.43
08-11-2025 21:0013.430.43
08-11-2025 20:5013.280.41
08-11-2025 20:4013.070.4
08-11-2025 20:3012.810.39
08-11-2025 20:2012.540.42
08-11-2025 20:1012.20.43
08-11-2025 20:0011.80.42
08-11-2025 19:5011.390.43
08-11-2025 19:4010.970.45
08-11-2025 19:3010.520.46
08-11-2025 19:2010.050.45
08-11-2025 19:109.550.42
08-11-2025 19:009.030.39
08-11-2025 18:508.510.35
08-11-2025 18:4080.31
08-11-2025 18:307.510.3
08-11-2025 18:207.050.32
08-11-2025 18:106.580.33
08-11-2025 18:006.10.33
08-11-2025 17:505.680.39
08-11-2025 17:405.270.45
08-11-2025 17:304.880.52
08-11-2025 17:204.440.53
08-11-2025 17:103.960.48
08-11-2025 17:003.470.41
08-11-2025 16:5030.33
08-11-2025 16:402.610.29
08-11-2025 16:302.290.28
08-11-2025 16:201.870.14
08-11-2025 16:101.45-0.06
08-11-2025 16:001.26-0.09
08-11-2025 15:501.270.02
08-11-2025 15:401.330.13
08-11-2025 15:301.450.24
08-11-2025 15:201.60.31
08-11-2025 15:101.760.34
08-11-2025 15:001.960.36
08-11-2025 14:502.160.33
08-11-2025 14:402.370.27
08-11-2025 14:302.630.22
08-11-2025 14:202.850.12
08-11-2025 14:103.090.01
08-11-2025 14:003.36-0.08
08-11-2025 13:503.65-0.15
08-11-2025 13:403.95-0.22
08-11-2025 13:304.27-0.25
08-11-2025 13:204.57-0.3
08-11-2025 13:104.88-0.31
08-11-2025 13:005.17-0.34
08-11-2025 12:505.49-0.32
08-11-2025 12:405.81-0.29
08-11-2025 12:306.12-0.26
08-11-2025 12:206.44-0.22
08-11-2025 12:106.76-0.17
08-11-2025 12:007.09-0.12
08-11-2025 11:507.43-0.08
08-11-2025 11:407.77-0.04
08-11-2025 11:308.11-0.03
08-11-2025 11:208.46-0.03
08-11-2025 11:108.81-0.05
08-11-2025 11:009.18-0.07
08-11-2025 10:509.57-0.1
08-11-2025 10:409.97-0.13
08-11-2025 10:3010.4-0.14
08-11-2025 10:2010.85-0.14
08-11-2025 10:1011.32-0.12
08-11-2025 10:0011.75-0.1
08-11-2025 09:5012.21-0.04
08-11-2025 09:4012.6-0.01
08-11-2025 09:3012.970.05
08-11-2025 09:2013.230.05
08-11-2025 09:1013.480.11
08-11-2025 09:0013.670.18
08-11-2025 08:5013.770.22
08-11-2025 08:4013.780.27
08-11-2025 08:3013.70.28
08-11-2025 08:2013.540.3
08-11-2025 08:1013.310.3
08-11-2025 08:0013.070.36
08-11-2025 07:5012.780.42
08-11-2025 07:4012.430.46
08-11-2025 07:3012.020.48
08-11-2025 07:2011.570.49
08-11-2025 07:1011.120.53
08-11-2025 07:0010.620.53
08-11-2025 06:5010.080.5
08-11-2025 06:409.50.44
08-11-2025 06:308.940.39
08-11-2025 06:208.370.35
08-11-2025 06:107.810.31
08-11-2025 06:007.280.31
08-11-2025 05:506.780.34
08-11-2025 05:406.250.33
08-11-2025 05:305.760.36
08-11-2025 05:205.330.45
08-11-2025 05:104.890.52
08-11-2025 05:004.430.55
08-11-2025 04:503.910.52
08-11-2025 04:403.380.45
08-11-2025 04:302.890.38
08-11-2025 04:202.440.33
08-11-2025 04:102.090.33
08-11-2025 04:001.580.12
08-11-2025 03:501.15-0.06
08-11-2025 03:401.040.02
08-11-2025 03:301.090.19
08-11-2025 03:201.190.36
08-11-2025 03:101.330.48
08-11-2025 03:001.50.58
08-11-2025 02:501.680.63
08-11-2025 02:401.880.63
08-11-2025 02:302.10.61
08-11-2025 02:202.310.53
08-11-2025 02:102.550.45
08-11-2025 02:002.80.35
08-11-2025 01:503.060.23
08-11-2025 01:403.340.12
08-11-2025 01:303.650.04
08-11-2025 01:203.97-0.04
08-11-2025 01:104.28-0.11
08-11-2025 01:004.6-0.17
08-11-2025 00:504.9-0.22
08-11-2025 00:405.22-0.25
08-11-2025 00:305.55-0.24
08-11-2025 00:205.88-0.23
08-11-2025 00:106.21-0.21