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
24-01-2026 09:3011.480.13
 Next HWNext LW
10:38, 12.33 17:18, 1.97
Date Highest 2026 Date Lowest 2026
06-01 13.49m 06-01 0.83m
Time (GMT)ElevationResidual
24-01-2026 09:3011.480.13
24-01-2026 09:2011.150.07
24-01-2026 09:1010.790
24-01-2026 09:0010.42-0.06
24-01-2026 08:5010.04-0.11
24-01-2026 08:409.65-0.15
24-01-2026 08:309.24-0.19
24-01-2026 08:208.83-0.22
24-01-2026 08:108.4-0.25
24-01-2026 08:007.97-0.26
24-01-2026 07:507.54-0.26
24-01-2026 07:407.13-0.23
24-01-2026 07:306.74-0.16
24-01-2026 07:206.36-0.08
24-01-2026 07:105.96-0.01
24-01-2026 07:005.590.09
24-01-2026 06:505.260.22
24-01-2026 06:404.920.33
24-01-2026 06:304.540.37
24-01-2026 06:204.130.36
24-01-2026 06:103.710.3
24-01-2026 06:003.320.25
24-01-2026 05:502.970.19
24-01-2026 05:402.670.13
24-01-2026 05:302.32-0.02
24-01-2026 05:201.98-0.21
24-01-2026 05:001.75-0.3
24-01-2026 04:501.81-0.25
24-01-2026 04:401.9-0.22
24-01-2026 04:202.18-0.16
24-01-2026 04:002.57-0.11
24-01-2026 03:502.77-0.12
24-01-2026 03:403.01-0.1
24-01-2026 03:303.26-0.07
24-01-2026 03:203.51-0.05
24-01-2026 03:103.78-0.01
24-01-2026 03:004.050.04
24-01-2026 02:504.340.1
24-01-2026 02:404.620.17
24-01-2026 02:304.910.24
24-01-2026 02:205.170.3
24-01-2026 02:105.480.4
24-01-2026 02:005.780.47
24-01-2026 01:306.690.62
24-01-2026 01:206.990.63
24-01-2026 01:107.310.62
24-01-2026 01:007.620.57
24-01-2026 00:507.970.54
24-01-2026 00:408.310.47
24-01-2026 00:308.680.41
24-01-2026 00:109.430.27
24-01-2026 00:009.820.21
23-01-2026 23:5010.20.14
23-01-2026 23:4010.580.11
23-01-2026 23:3010.960.09
23-01-2026 23:1011.680.15
23-01-2026 23:0011.940.15
23-01-2026 22:5012.210.21
23-01-2026 22:3012.540.31
23-01-2026 22:2012.60.34
23-01-2026 22:1012.560.33
23-01-2026 22:0012.470.32
23-01-2026 21:5012.290.27
23-01-2026 21:3011.850.21
23-01-2026 21:2011.570.17
23-01-2026 21:1011.250.12
23-01-2026 20:5010.520.01
23-01-2026 20:4010.14-0.04
23-01-2026 20:309.74-0.08
23-01-2026 20:209.32-0.13
23-01-2026 20:108.88-0.18
23-01-2026 20:008.41-0.24
23-01-2026 19:507.95-0.28
23-01-2026 19:407.47-0.32
23-01-2026 19:307.05-0.29
23-01-2026 19:206.62-0.26
23-01-2026 19:106.19-0.22
23-01-2026 19:005.77-0.16
23-01-2026 18:505.4-0.06
23-01-2026 18:405.030.04
23-01-2026 18:304.640.11
23-01-2026 18:204.220.13
23-01-2026 18:103.780.11
23-01-2026 18:003.360.07
23-01-2026 17:502.960.02
23-01-2026 17:402.63-0
23-01-2026 17:302.25-0.12
23-01-2026 17:201.85-0.32
23-01-2026 17:101.61-0.4
23-01-2026 17:001.58-0.33
23-01-2026 16:501.64-0.23
23-01-2026 16:401.73-0.14
23-01-2026 16:301.87-0.06
23-01-2026 16:202.03-0
23-01-2026 16:102.210.04
23-01-2026 16:002.430.07
23-01-2026 15:502.630.07
23-01-2026 15:402.850.05
23-01-2026 15:303.10.06
23-01-2026 15:203.360.07
23-01-2026 15:103.630.07
23-01-2026 15:003.920.11
23-01-2026 14:504.210.13
23-01-2026 14:404.490.17
23-01-2026 14:304.80.24
23-01-2026 14:205.090.3
23-01-2026 14:105.40.38
23-01-2026 14:005.710.47
23-01-2026 13:506.010.54
23-01-2026 13:406.310.62
23-01-2026 13:306.630.7
23-01-2026 13:206.960.78
23-01-2026 13:107.290.84
23-01-2026 13:007.620.86
23-01-2026 12:507.960.89
23-01-2026 12:408.310.89
23-01-2026 12:308.650.85
23-01-2026 12:209.010.8
23-01-2026 12:109.390.76
23-01-2026 12:009.760.7
23-01-2026 11:5010.150.65
23-01-2026 11:4010.590.64
23-01-2026 11:30110.61
23-01-2026 11:2011.410.61
23-01-2026 11:1011.820.63
23-01-2026 11:0012.160.63
23-01-2026 10:5012.470.63
23-01-2026 10:4012.70.61
23-01-2026 10:3012.880.59
23-01-2026 10:2013.050.62
23-01-2026 10:1013.140.62
23-01-2026 10:0013.160.63
23-01-2026 09:5013.110.61
23-01-2026 09:4012.990.58
23-01-2026 09:3012.820.55
23-01-2026 09:2012.590.49
23-01-2026 09:1012.330.45
23-01-2026 09:0012.060.42
23-01-2026 08:5011.730.38
23-01-2026 08:4011.380.33
23-01-2026 08:3010.970.25
23-01-2026 08:2010.550.18
23-01-2026 08:1010.130.11
23-01-2026 08:009.690.06
23-01-2026 07:509.23-0.01
23-01-2026 07:408.77-0.05
23-01-2026 07:308.3-0.1
23-01-2026 07:207.82-0.14
23-01-2026 07:107.36-0.14
23-01-2026 07:006.91-0.12
23-01-2026 06:506.49-0.07
23-01-2026 06:406.04-0.04
23-01-2026 06:305.650.05
23-01-2026 06:205.250.13
23-01-2026 06:104.890.23
23-01-2026 06:004.450.24
23-01-2026 05:504.010.21
23-01-2026 05:403.550.14
23-01-2026 05:303.110.06
23-01-2026 05:202.740.01
23-01-2026 05:102.38-0.1
23-01-2026 05:001.95-0.31
23-01-2026 04:501.58-0.51
23-01-2026 04:401.47-0.52
23-01-2026 04:301.51-0.42
23-01-2026 04:201.59-0.35
23-01-2026 04:101.72-0.26
23-01-2026 04:001.85-0.23
23-01-2026 03:502.03-0.18
23-01-2026 03:402.23-0.15
23-01-2026 03:302.42-0.15
23-01-2026 03:202.67-0.12
23-01-2026 03:102.91-0.12
23-01-2026 03:003.15-0.13
23-01-2026 02:503.42-0.11
23-01-2026 02:403.69-0.09
23-01-2026 02:304-0.03
23-01-2026 02:204.30.02
23-01-2026 02:104.570.06
23-01-2026 02:004.870.13
23-01-2026 01:505.180.22
23-01-2026 01:405.490.29
23-01-2026 01:305.790.38
23-01-2026 01:206.110.46
23-01-2026 01:106.410.53
23-01-2026 01:006.740.59
23-01-2026 00:507.070.64
23-01-2026 00:407.410.68
23-01-2026 00:307.740.69
23-01-2026 00:208.090.69
23-01-2026 00:108.450.67
23-01-2026 00:008.820.62
22-01-2026 23:509.20.58
22-01-2026 23:409.60.54
22-01-2026 23:3010.020.51
22-01-2026 23:2010.420.47
22-01-2026 23:1010.840.45
22-01-2026 23:0011.240.44
22-01-2026 22:5011.640.45
22-01-2026 22:40120.47
22-01-2026 22:3012.290.46
22-01-2026 22:2012.520.45
22-01-2026 22:1012.730.48
22-01-2026 22:0012.860.48
22-01-2026 21:5012.920.48
22-01-2026 21:4012.920.48
22-01-2026 21:3012.830.44
22-01-2026 21:2012.670.4
22-01-2026 21:1012.470.36
22-01-2026 21:0012.220.32
22-01-2026 20:5011.960.31
22-01-2026 20:4011.650.28
22-01-2026 20:3011.280.23
22-01-2026 20:2010.890.17
22-01-2026 20:1010.50.14
22-01-2026 20:0010.10.11
22-01-2026 19:509.670.08
22-01-2026 19:409.210.02
22-01-2026 19:308.74-0.03
22-01-2026 19:208.27-0.06
22-01-2026 19:107.8-0.09
22-01-2026 19:007.37-0.06
22-01-2026 18:506.93-0.04
22-01-2026 18:406.510.02
22-01-2026 18:306.060.05
22-01-2026 18:205.670.14
22-01-2026 18:105.290.24
22-01-2026 18:004.90.32
22-01-2026 17:504.480.35
22-01-2026 17:404.030.33
22-01-2026 17:303.580.27
22-01-2026 17:203.130.19
22-01-2026 17:102.760.14
22-01-2026 17:002.410.08
22-01-2026 16:502.01-0.1
22-01-2026 16:401.66-0.28
22-01-2026 16:301.51-0.31
22-01-2026 16:201.51-0.26
22-01-2026 16:101.57-0.18
22-01-2026 16:001.69-0.11
22-01-2026 15:501.83-0.07
22-01-2026 15:401.99-0.04
22-01-2026 15:302.16-0.05
22-01-2026 15:202.35-0.08
22-01-2026 15:102.6-0.06
22-01-2026 15:002.82-0.1
22-01-2026 14:503.09-0.1
22-01-2026 14:403.34-0.12
22-01-2026 14:303.61-0.13
22-01-2026 14:203.91-0.1
22-01-2026 14:104.2-0.09
22-01-2026 14:004.49-0.06
22-01-2026 13:504.8-0.01
22-01-2026 13:405.080.03
22-01-2026 13:305.410.11
22-01-2026 13:205.730.19
22-01-2026 13:106.030.26
22-01-2026 13:006.340.32
22-01-2026 12:506.650.38
22-01-2026 12:406.980.44
22-01-2026 12:307.310.48
22-01-2026 12:207.650.51
22-01-2026 12:107.980.51
22-01-2026 12:008.320.5
22-01-2026 11:508.670.48
22-01-2026 11:409.040.44
22-01-2026 11:309.430.41
22-01-2026 11:209.810.36
22-01-2026 11:1010.210.33
22-01-2026 11:0010.630.32
22-01-2026 10:5011.040.31
22-01-2026 10:4011.460.33
22-01-2026 10:3011.850.35
22-01-2026 10:2012.20.38
22-01-2026 10:1012.540.43
22-01-2026 10:0012.790.45
22-01-2026 09:5012.990.48
22-01-2026 09:4013.140.51
22-01-2026 09:3013.260.58
22-01-2026 09:2013.280.6
22-01-2026 09:1013.220.61