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
20-05-2025 14:108-0.29
 Next HWNext LW
00:43, 10.39 18:15, 3.38
Date Highest 2025 Date Lowest 2025
27-04 15.33m 31-03 0.03m
Time (GMT)ElevationResidual
20-05-2025 14:108-0.29
20-05-2025 14:008.25-0.33
20-05-2025 13:508.52-0.35
20-05-2025 13:408.77-0.37
20-05-2025 13:309.02-0.36
20-05-2025 13:209.25-0.35
20-05-2025 13:109.49-0.3
20-05-2025 13:009.7-0.26
20-05-2025 12:509.88-0.22
20-05-2025 12:4010.03-0.17
20-05-2025 12:3010.15-0.12
20-05-2025 12:2010.23-0.08
20-05-2025 12:1010.27-0.05
20-05-2025 12:0010.40.1
20-05-2025 11:5010.260.01
20-05-2025 11:4010.20.03
20-05-2025 11:3010.120.05
20-05-2025 11:2010.010.06
20-05-2025 11:109.890.08
20-05-2025 11:009.730.09
20-05-2025 10:509.560.09
20-05-2025 10:409.360.09
20-05-2025 10:309.150.09
20-05-2025 10:208.950.11
20-05-2025 10:108.690.1
20-05-2025 10:008.450.1
20-05-2025 09:508.20.12
20-05-2025 09:407.950.14
20-05-2025 09:307.70.16
20-05-2025 09:207.410.17
20-05-2025 09:107.160.21
20-05-2025 09:006.910.25
20-05-2025 08:506.630.27
20-05-2025 08:406.380.31
20-05-2025 08:306.120.34
20-05-2025 08:205.860.38
20-05-2025 08:105.620.41
20-05-2025 08:005.390.45
20-05-2025 07:505.130.46
20-05-2025 07:404.890.46
20-05-2025 07:304.650.46
20-05-2025 07:204.40.43
20-05-2025 07:104.150.37
20-05-2025 07:003.880.28
20-05-2025 06:503.640.2
20-05-2025 06:403.420.11
20-05-2025 06:303.250.04
20-05-2025 06:203.07-0.07
20-05-2025 06:102.93-0.15
20-05-2025 06:002.86-0.21
20-05-2025 05:502.84-0.24
20-05-2025 05:402.88-0.24
20-05-2025 05:302.96-0.22
20-05-2025 05:203.07-0.21
20-05-2025 05:103.2-0.19
20-05-2025 05:003.36-0.17
20-05-2025 04:503.53-0.15
20-05-2025 04:403.7-0.15
20-05-2025 04:303.9-0.13
20-05-2025 04:204.12-0.11
20-05-2025 04:104.34-0.09
20-05-2025 04:004.56-0.08
20-05-2025 03:504.8-0.06
20-05-2025 03:405.04-0.04
20-05-2025 03:305.28-0.03
20-05-2025 03:205.53-0.02
20-05-2025 03:105.78-0.01
20-05-2025 03:006.03-0
20-05-2025 02:506.28-0.01
20-05-2025 02:406.56-0.01
20-05-2025 02:306.840
20-05-2025 02:207.11-0.01
20-05-2025 02:107.36-0.06
20-05-2025 02:007.62-0.1
20-05-2025 01:507.86-0.16
20-05-2025 01:408.12-0.21
20-05-2025 01:308.38-0.25
20-05-2025 01:208.62-0.29
20-05-2025 01:108.86-0.32
20-05-2025 01:009.11-0.33
20-05-2025 00:509.36-0.31
20-05-2025 00:409.59-0.29
20-05-2025 00:309.82-0.25
20-05-2025 00:2010-0.22
20-05-2025 00:1010.15-0.19
20-05-2025 00:0010.29-0.14
19-05-2025 23:5010.36-0.13
19-05-2025 23:4010.41-0.1
19-05-2025 23:3010.44-0.07
19-05-2025 23:2010.42-0.05
19-05-2025 23:1010.37-0.04
19-05-2025 23:0010.31-0.02
19-05-2025 22:5010.21-0.01
19-05-2025 22:4010.09-0
19-05-2025 22:309.950.01
19-05-2025 22:209.790.01
19-05-2025 22:109.620.02
19-05-2025 22:009.440.03
19-05-2025 21:509.230.02
19-05-2025 21:409.030.05
19-05-2025 21:308.810.07
19-05-2025 21:208.590.09
19-05-2025 21:108.360.13
19-05-2025 21:008.130.17
19-05-2025 20:507.870.18
19-05-2025 20:407.640.24
19-05-2025 20:307.380.28
19-05-2025 20:207.150.35
19-05-2025 20:106.90.4
19-05-2025 20:006.650.46
19-05-2025 19:506.40.5
19-05-2025 19:406.140.55
19-05-2025 19:305.90.6
19-05-2025 19:205.640.63
19-05-2025 19:105.390.65
19-05-2025 19:005.120.65
19-05-2025 18:504.870.64
19-05-2025 18:404.590.59
19-05-2025 18:304.320.52
19-05-2025 18:204.030.42
19-05-2025 18:103.740.29
19-05-2025 18:003.510.17
19-05-2025 17:503.290.05
19-05-2025 17:403.11-0.08
19-05-2025 17:302.93-0.23
19-05-2025 17:202.86-0.3
19-05-2025 17:102.87-0.33
19-05-2025 17:002.92-0.34
19-05-2025 16:503.02-0.33
19-05-2025 16:403.15-0.32
19-05-2025 16:303.29-0.31
19-05-2025 16:203.45-0.3
19-05-2025 16:103.64-0.28
19-05-2025 16:003.83-0.27
19-05-2025 15:504.05-0.25
19-05-2025 15:404.27-0.22
19-05-2025 15:304.49-0.21
19-05-2025 15:204.74-0.17
19-05-2025 15:104.97-0.15
19-05-2025 15:005.2-0.15
19-05-2025 14:505.46-0.12
19-05-2025 14:405.7-0.12
19-05-2025 14:305.95-0.12
19-05-2025 14:206.21-0.12
19-05-2025 14:106.48-0.12
19-05-2025 14:006.73-0.15
19-05-2025 13:507.02-0.17
19-05-2025 13:407.28-0.2
19-05-2025 13:307.57-0.23
19-05-2025 13:207.85-0.26
19-05-2025 13:108.12-0.3
19-05-2025 13:008.41-0.32
19-05-2025 12:508.69-0.33
19-05-2025 12:408.97-0.33
19-05-2025 12:309.25-0.31
19-05-2025 12:209.51-0.28
19-05-2025 12:109.78-0.21
19-05-2025 12:0010.01-0.16
19-05-2025 11:5010.23-0.08
19-05-2025 11:4010.38-0.03
19-05-2025 11:3010.510.03
19-05-2025 11:2010.590.08
19-05-2025 11:1010.640.12
19-05-2025 11:0010.620.14
19-05-2025 10:5010.580.15
19-05-2025 10:4010.510.16
19-05-2025 10:3010.40.17
19-05-2025 10:2010.260.16
19-05-2025 10:1010.10.16
19-05-2025 10:009.930.17
19-05-2025 09:509.710.14
19-05-2025 09:409.470.11
19-05-2025 09:309.240.1
19-05-2025 09:208.980.08
19-05-2025 09:108.710.07
19-05-2025 09:008.430.06
19-05-2025 08:508.160.08
19-05-2025 08:407.860.07
19-05-2025 08:307.570.09
19-05-2025 08:207.290.11
19-05-2025 08:106.990.13
19-05-2025 08:006.70.17
19-05-2025 07:506.410.2
19-05-2025 07:406.130.24
19-05-2025 07:305.850.29
19-05-2025 07:205.580.34
19-05-2025 07:105.320.39
19-05-2025 07:005.040.41
19-05-2025 06:504.760.42
19-05-2025 06:404.490.41
19-05-2025 06:304.180.34
19-05-2025 06:203.890.29
19-05-2025 06:103.570.17
19-05-2025 06:003.310.07
19-05-2025 05:503.06-0.03
19-05-2025 05:402.86-0.12
19-05-2025 05:302.65-0.25
19-05-2025 05:202.5-0.36
19-05-2025 05:102.44-0.42
19-05-2025 05:002.46-0.42
19-05-2025 04:502.54-0.4
19-05-2025 04:402.64-0.39
19-05-2025 04:302.79-0.36
19-05-2025 04:202.91-0.38
19-05-2025 04:103.09-0.36
19-05-2025 04:003.29-0.34
19-05-2025 03:503.49-0.33
19-05-2025 03:403.71-0.31
19-05-2025 03:303.93-0.29
19-05-2025 03:204.16-0.27
19-05-2025 03:104.38-0.26
19-05-2025 03:004.63-0.22
19-05-2025 02:504.88-0.19
19-05-2025 02:405.12-0.17
19-05-2025 02:305.38-0.13
19-05-2025 02:205.64-0.1
19-05-2025 02:105.9-0.08
19-05-2025 02:006.17-0.06
19-05-2025 01:506.43-0.06
19-05-2025 01:406.7-0.06
19-05-2025 01:306.99-0.07
19-05-2025 01:207.27-0.08
19-05-2025 01:107.56-0.11
19-05-2025 01:007.84-0.14
19-05-2025 00:508.13-0.18
19-05-2025 00:408.42-0.2
19-05-2025 00:308.7-0.24
19-05-2025 00:208.98-0.26
19-05-2025 00:109.26-0.27
19-05-2025 00:009.54-0.26
18-05-2025 23:509.8-0.24
18-05-2025 23:4010.05-0.21
18-05-2025 23:3010.28-0.15
18-05-2025 23:2010.48-0.09
18-05-2025 23:1010.65-0.03
18-05-2025 23:0010.780.03
18-05-2025 22:5010.860.07
18-05-2025 22:4010.910.12
18-05-2025 22:3010.920.16
18-05-2025 22:2010.880.18
18-05-2025 22:1010.820.2
18-05-2025 22:0010.710.21
18-05-2025 21:5010.580.21
18-05-2025 21:4010.430.22
18-05-2025 21:3010.250.21
18-05-2025 21:2010.050.21
18-05-2025 21:109.830.19
18-05-2025 21:009.580.17
18-05-2025 20:509.340.16
18-05-2025 20:409.060.15
18-05-2025 20:308.790.15
18-05-2025 20:208.520.16
18-05-2025 20:108.240.18
18-05-2025 20:007.950.2
18-05-2025 19:507.670.24
18-05-2025 19:407.390.29
18-05-2025 19:307.10.35
18-05-2025 19:206.820.41
18-05-2025 19:106.530.47
18-05-2025 19:006.260.54
18-05-2025 18:505.970.6
18-05-2025 18:405.670.64
18-05-2025 18:305.40.7
18-05-2025 18:205.090.7
18-05-2025 18:104.770.66
18-05-2025 18:004.450.61
18-05-2025 17:504.10.5
18-05-2025 17:403.770.38
18-05-2025 17:303.450.23
18-05-2025 17:203.170.1
18-05-2025 17:102.91-0.06
18-05-2025 17:002.65-0.26
18-05-2025 16:502.49-0.39
18-05-2025 16:402.44-0.45
18-05-2025 16:302.48-0.46
18-05-2025 16:202.58-0.44
18-05-2025 16:102.7-0.43
18-05-2025 16:002.85-0.42
18-05-2025 15:503.02-0.41
18-05-2025 15:403.21-0.4
18-05-2025 15:303.41-0.39
18-05-2025 15:203.62-0.39
18-05-2025 15:103.85-0.36
18-05-2025 15:004.08-0.34
18-05-2025 14:504.33-0.31
18-05-2025 14:404.59-0.26
18-05-2025 14:304.83-0.23
18-05-2025 14:205.1-0.18
18-05-2025 14:105.35-0.15