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 11:305.61-0.09
 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
12-11-2025 00:0010.820.31
11-11-2025 23:5010.920.36
11-11-2025 23:4010.970.4
11-11-2025 23:3010.970.42
11-11-2025 23:2010.950.46
11-11-2025 23:1010.890.5
11-11-2025 23:0010.790.53
11-11-2025 22:5010.680.58
11-11-2025 22:4010.530.62
11-11-2025 22:3010.350.66
11-11-2025 22:2010.150.69
11-11-2025 22:109.950.74
11-11-2025 22:009.720.77
11-11-2025 21:509.460.79
11-11-2025 21:409.20.82
11-11-2025 21:308.950.85
11-11-2025 21:208.680.87
11-11-2025 21:108.430.91
11-11-2025 21:008.160.94
11-11-2025 20:507.90.96
11-11-2025 20:407.610.97
11-11-2025 20:307.330.98
11-11-2025 20:207.060.99
11-11-2025 20:106.791
11-11-2025 20:006.50.99
11-11-2025 19:506.230.99
11-11-2025 19:405.950.97
11-11-2025 19:305.690.96
11-11-2025 19:205.440.94
11-11-2025 19:105.180.91
11-11-2025 19:004.960.88
11-11-2025 18:504.720.83
11-11-2025 18:404.480.75
11-11-2025 18:304.270.67
11-11-2025 18:204.060.57
11-11-2025 18:103.860.46
11-11-2025 18:003.720.38
11-11-2025 17:503.580.27
11-11-2025 17:403.470.16
11-11-2025 17:303.370.04
11-11-2025 17:203.35-0.04
11-11-2025 17:103.39-0.08
11-11-2025 17:003.43-0.14
11-11-2025 16:503.53-0.17
11-11-2025 16:403.66-0.18
11-11-2025 16:303.82-0.19
11-11-2025 16:204.01-0.2
11-11-2025 16:104.19-0.22
11-11-2025 16:004.39-0.24
11-11-2025 15:504.61-0.25
11-11-2025 15:404.81-0.28
11-11-2025 15:305.01-0.32
11-11-2025 15:205.26-0.32
11-11-2025 15:105.49-0.34
11-11-2025 15:005.75-0.33
11-11-2025 14:505.99-0.33
11-11-2025 14:406.25-0.32
11-11-2025 14:306.51-0.3
11-11-2025 14:206.8-0.26
11-11-2025 14:107.08-0.23
11-11-2025 14:007.35-0.2
11-11-2025 13:507.63-0.17
11-11-2025 13:407.91-0.15
11-11-2025 13:308.2-0.12
11-11-2025 13:208.48-0.1
11-11-2025 13:108.78-0.07
11-11-2025 13:009.08-0.05
11-11-2025 12:509.38-0.02
11-11-2025 12:409.670
11-11-2025 12:309.980.05
11-11-2025 12:2010.280.09
11-11-2025 12:1010.560.13
11-11-2025 12:0010.810.17
11-11-2025 11:5011.040.21
11-11-2025 11:4011.220.23
11-11-2025 11:3011.390.27
11-11-2025 11:2011.550.36
11-11-2025 11:1011.620.38
11-11-2025 11:0011.670.44
11-11-2025 10:5011.670.48
11-11-2025 10:4011.630.53
11-11-2025 10:3011.540.56
11-11-2025 10:2011.410.6
11-11-2025 10:1011.250.62
11-11-2025 10:0011.050.65
11-11-2025 09:5010.830.67
11-11-2025 09:4010.580.69
11-11-2025 09:3010.310.7
11-11-2025 09:2010.030.71
11-11-2025 09:109.730.71
11-11-2025 09:009.430.73
11-11-2025 08:509.120.73
11-11-2025 08:408.810.74
11-11-2025 08:308.490.75
11-11-2025 08:208.180.76
11-11-2025 08:107.850.76
11-11-2025 08:007.530.77
11-11-2025 07:507.220.79
11-11-2025 07:406.920.82
11-11-2025 07:306.60.83
11-11-2025 07:206.30.85
11-11-2025 07:105.960.83
11-11-2025 07:005.640.81
11-11-2025 06:505.330.79
11-11-2025 06:404.990.74
11-11-2025 06:304.680.68
11-11-2025 06:204.320.56
11-11-2025 06:1040.45
11-11-2025 06:003.690.32
11-11-2025 05:503.430.21
11-11-2025 05:403.150.05
11-11-2025 05:302.89-0.13
11-11-2025 05:202.71-0.26
11-11-2025 05:102.65-0.31
11-11-2025 05:002.68-0.31
11-11-2025 04:502.74-0.31
11-11-2025 04:402.84-0.31
11-11-2025 04:302.98-0.29
11-11-2025 04:203.15-0.28
11-11-2025 04:103.33-0.29
11-11-2025 04:003.52-0.31
11-11-2025 03:503.73-0.32
11-11-2025 03:403.95-0.35
11-11-2025 03:304.17-0.38
11-11-2025 03:204.42-0.4
11-11-2025 03:104.65-0.43
11-11-2025 03:004.91-0.45
11-11-2025 02:505.16-0.47
11-11-2025 02:405.43-0.47
11-11-2025 02:305.69-0.47
11-11-2025 02:205.97-0.45
11-11-2025 02:106.24-0.44
11-11-2025 02:006.52-0.41
11-11-2025 01:506.82-0.37
11-11-2025 01:407.11-0.33
11-11-2025 01:307.4-0.3
11-11-2025 01:207.7-0.26
11-11-2025 01:108.01-0.22
11-11-2025 01:008.33-0.18
11-11-2025 00:508.65-0.14
11-11-2025 00:408.98-0.09
11-11-2025 00:309.3-0.07
11-11-2025 00:209.64-0.01
11-11-2025 00:109.960.03