National Network of Regional Coastal Monitoring Programmes

« Dychwelid at fap am donau, llanw a gorsafoedd tywydd eraill.

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

Data llanw diweddaraf (Predicted Tide Table) (Data was last updated 2 days 20 hours 32 minutes ago)

Amser (ASG)CodiadGweddill
19-07-2024 05:0010.960.13
 Penllanw nesafDistyll nesaf
07:52, 12.53 02:13, 1.59
Dyddiad Uchaf 2024 Dyddiad Isaf 2024
28-06 17.17m 11-03 0.07m
Amser (ASG)CodiadGweddill
19-07-2024 05:0010.960.13
19-07-2024 04:5010.90.13
19-07-2024 04:4010.790.12
19-07-2024 04:3010.660.11
19-07-2024 04:2010.50.11
19-07-2024 04:1010.320.1
19-07-2024 04:0010.120.11
19-07-2024 03:509.880.09
19-07-2024 03:409.630.09
19-07-2024 03:309.390.12
19-07-2024 03:209.120.13
19-07-2024 03:108.820.13
19-07-2024 03:008.540.16
19-07-2024 02:508.250.18
19-07-2024 02:407.940.21
19-07-2024 02:307.620.22
19-07-2024 02:207.30.24
19-07-2024 02:1070.27
19-07-2024 02:006.680.3
19-07-2024 01:506.380.33
19-07-2024 01:406.080.37
19-07-2024 01:305.790.4
19-07-2024 01:205.510.43
19-07-2024 01:105.230.45
19-07-2024 01:004.950.46
19-07-2024 00:504.670.44
19-07-2024 00:404.380.39
19-07-2024 00:304.080.31
19-07-2024 00:203.80.21
19-07-2024 00:103.530.1
19-07-2024 00:003.310.01
18-07-2024 23:503.08-0.12
18-07-2024 23:402.9-0.23
18-07-2024 23:302.75-0.35
18-07-2024 23:202.67-0.41
18-07-2024 23:102.67-0.43
18-07-2024 23:002.71-0.43
18-07-2024 22:502.81-0.41
18-07-2024 22:402.92-0.39
18-07-2024 22:303.06-0.35
18-07-2024 22:203.21-0.33
18-07-2024 22:103.39-0.29
18-07-2024 22:003.57-0.27
18-07-2024 21:503.78-0.23
18-07-2024 21:403.99-0.2
18-07-2024 21:304.22-0.16
18-07-2024 21:204.44-0.13
18-07-2024 21:104.69-0.09
18-07-2024 21:004.93-0.07
18-07-2024 20:505.18-0.04
18-07-2024 20:405.44-0.02
18-07-2024 20:305.69-0.01
18-07-2024 20:205.95-0.01
18-07-2024 20:106.21-0.01
18-07-2024 20:006.47-0.03
18-07-2024 19:506.74-0.05
18-07-2024 19:406.99-0.08
18-07-2024 19:307.27-0.1
18-07-2024 19:207.53-0.14
18-07-2024 19:107.8-0.17
18-07-2024 19:008.09-0.19
18-07-2024 18:508.36-0.22
18-07-2024 18:408.65-0.23
18-07-2024 18:308.92-0.23
18-07-2024 18:209.2-0.22
18-07-2024 18:109.48-0.2
18-07-2024 18:009.73-0.18
18-07-2024 17:509.98-0.13
18-07-2024 17:4010.23-0.07
18-07-2024 17:3010.44-0.01
18-07-2024 17:2010.620.05
18-07-2024 17:1010.760.09
18-07-2024 17:0010.860.13
18-07-2024 16:5010.910.16
18-07-2024 16:4010.930.18
18-07-2024 16:3010.890.18
18-07-2024 16:2010.830.19
18-07-2024 16:1010.730.18
18-07-2024 16:0010.610.18
18-07-2024 15:5010.470.19
18-07-2024 15:4010.290.18
18-07-2024 15:3010.110.19
18-07-2024 15:209.890.19
18-07-2024 15:109.640.18
18-07-2024 15:009.410.2
18-07-2024 14:509.150.21
18-07-2024 14:408.880.21
18-07-2024 14:308.610.23
18-07-2024 14:208.320.24
18-07-2024 14:108.030.26
18-07-2024 14:007.750.3
18-07-2024 13:507.460.32
18-07-2024 13:407.170.35
18-07-2024 13:306.890.39
18-07-2024 13:206.620.44
18-07-2024 13:106.340.46
18-07-2024 13:006.090.52
18-07-2024 12:505.820.55
18-07-2024 12:405.580.57
18-07-2024 12:305.340.6
18-07-2024 12:205.110.61
18-07-2024 12:104.850.57
18-07-2024 12:004.620.54
18-07-2024 11:504.370.46
18-07-2024 11:404.120.36
18-07-2024 11:303.890.26
18-07-2024 11:203.680.14
18-07-2024 11:103.510.04
18-07-2024 11:003.34-0.09
18-07-2024 10:503.22-0.19
18-07-2024 10:403.14-0.27
18-07-2024 10:303.11-0.32
18-07-2024 10:203.13-0.35
18-07-2024 10:103.18-0.36
18-07-2024 10:003.28-0.34
18-07-2024 09:503.39-0.32
18-07-2024 09:403.53-0.29
18-07-2024 09:303.68-0.25
18-07-2024 09:203.85-0.21
18-07-2024 09:104.02-0.18
18-07-2024 09:004.22-0.13
18-07-2024 08:504.43-0.09
18-07-2024 08:404.62-0.07
18-07-2024 08:304.82-0.05
18-07-2024 08:205.04-0.03
18-07-2024 08:105.26-0.01
18-07-2024 08:005.49-0
18-07-2024 07:505.72-0.01
18-07-2024 07:405.95-0.02
18-07-2024 07:306.18-0.05
18-07-2024 07:206.41-0.08
18-07-2024 07:106.65-0.11
18-07-2024 07:006.89-0.16
18-07-2024 06:507.13-0.2
18-07-2024 06:407.37-0.25
18-07-2024 06:307.61-0.3
18-07-2024 06:207.86-0.33
18-07-2024 06:108.12-0.35
18-07-2024 06:008.36-0.38
18-07-2024 05:508.61-0.39
18-07-2024 05:408.85-0.39
18-07-2024 05:309.11-0.35
18-07-2024 05:209.34-0.32
18-07-2024 05:109.56-0.28
18-07-2024 05:009.76-0.23
18-07-2024 04:509.94-0.18
18-07-2024 04:4010.1-0.13
18-07-2024 04:3010.21-0.09
18-07-2024 04:2010.28-0.05
18-07-2024 04:1010.34-0.01
18-07-2024 04:0010.360.02
18-07-2024 03:5010.320.02
18-07-2024 03:4010.270.04
18-07-2024 03:3010.190.06
18-07-2024 03:2010.090.07
18-07-2024 03:109.960.08
18-07-2024 03:009.820.1
18-07-2024 02:509.660.12
18-07-2024 02:409.480.15
18-07-2024 02:309.270.16
18-07-2024 02:209.070.2
18-07-2024 02:108.850.23
18-07-2024 02:008.620.26
18-07-2024 01:508.370.3
18-07-2024 01:408.120.33
18-07-2024 01:307.860.37
18-07-2024 01:207.60.41
18-07-2024 01:107.330.45
18-07-2024 01:007.070.5
18-07-2024 00:506.810.54
18-07-2024 00:406.550.58
18-07-2024 00:306.30.61
18-07-2024 00:206.020.62
18-07-2024 00:105.770.62
18-07-2024 00:005.520.62
17-07-2024 23:505.270.61
17-07-2024 23:405.030.57
17-07-2024 23:304.790.53
17-07-2024 23:204.560.46
17-07-2024 23:104.320.36
17-07-2024 23:004.090.25
17-07-2024 22:503.890.14
17-07-2024 22:403.720.03
17-07-2024 22:303.56-0.08
17-07-2024 22:203.42-0.19
17-07-2024 22:103.32-0.29
17-07-2024 22:003.26-0.36
17-07-2024 21:503.26-0.4
17-07-2024 21:403.29-0.42
17-07-2024 21:303.35-0.42
17-07-2024 21:203.46-0.4
17-07-2024 21:103.57-0.38
17-07-2024 21:003.72-0.34
17-07-2024 20:503.88-0.3
17-07-2024 20:404.06-0.25
17-07-2024 20:304.25-0.22
17-07-2024 20:204.44-0.19
17-07-2024 20:104.65-0.15
17-07-2024 20:004.86-0.12
17-07-2024 19:505.08-0.1
17-07-2024 19:405.29-0.1
17-07-2024 19:305.52-0.1
17-07-2024 19:205.75-0.1
17-07-2024 19:105.99-0.11
17-07-2024 19:006.22-0.13
17-07-2024 18:506.46-0.16
17-07-2024 18:406.71-0.19
17-07-2024 18:306.95-0.22
17-07-2024 18:207.18-0.26
17-07-2024 18:107.43-0.3
17-07-2024 18:007.67-0.33
17-07-2024 17:507.92-0.35
17-07-2024 17:408.15-0.37
17-07-2024 17:308.4-0.37
17-07-2024 17:208.63-0.37
17-07-2024 17:108.87-0.36
17-07-2024 17:009.11-0.31
17-07-2024 16:509.33-0.27
17-07-2024 16:409.53-0.22
17-07-2024 16:309.72-0.17
17-07-2024 16:209.89-0.11
17-07-2024 16:1010.02-0.07
17-07-2024 16:0010.1-0.04
17-07-2024 15:5010.16-0.02
17-07-2024 15:4010.190
17-07-2024 15:3010.210.04
17-07-2024 15:2010.170.03
17-07-2024 15:1010.120.05
17-07-2024 15:0010.040.05
17-07-2024 14:509.940.06
17-07-2024 14:409.820.06
17-07-2024 14:309.690.08
17-07-2024 14:209.530.09
17-07-2024 14:109.360.11
17-07-2024 14:009.170.13
17-07-2024 13:508.990.16
17-07-2024 13:408.780.19
17-07-2024 13:308.560.21
17-07-2024 13:208.330.25
17-07-2024 13:108.110.3
17-07-2024 13:007.870.34
17-07-2024 12:507.650.4
17-07-2024 12:407.420.45
17-07-2024 12:307.20.5
17-07-2024 12:206.970.56
17-07-2024 12:106.760.63
17-07-2024 12:006.550.68
17-07-2024 11:506.330.72
17-07-2024 11:406.140.77
17-07-2024 11:305.920.78
17-07-2024 11:205.710.78
17-07-2024 11:105.50.77
17-07-2024 11:005.30.76
17-07-2024 10:505.10.71
17-07-2024 10:404.920.67
17-07-2024 10:304.720.59
17-07-2024 10:204.520.5
17-07-2024 10:104.320.39
17-07-2024 10:004.150.28
17-07-2024 09:5040.18
17-07-2024 09:403.860.07
17-07-2024 09:303.72-0.05
17-07-2024 09:203.63-0.14
17-07-2024 09:103.57-0.21
17-07-2024 09:003.55-0.26
17-07-2024 08:503.58-0.27
17-07-2024 08:403.66-0.25
17-07-2024 08:303.75-0.23
17-07-2024 08:203.85-0.21
17-07-2024 08:103.98-0.18
17-07-2024 08:004.14-0.14
17-07-2024 07:504.29-0.12
17-07-2024 07:404.45-0.11
17-07-2024 07:304.64-0.08
17-07-2024 07:204.83-0.07
17-07-2024 07:105.03-0.06
17-07-2024 07:005.26-0.05
17-07-2024 06:505.47-0.06
17-07-2024 06:405.68-0.09
17-07-2024 06:305.89-0.12
17-07-2024 06:206.11-0.17
17-07-2024 06:106.32-0.22
17-07-2024 06:006.54-0.26
17-07-2024 05:506.76-0.32
17-07-2024 05:406.97-0.39
17-07-2024 05:307.2-0.43
17-07-2024 05:207.41-0.49
17-07-2024 05:107.64-0.51