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.

Breaks in the data series are when the instrument is dry.

Penarth

Tide Levels and Harmonics

 

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Latest Tide Data (Predicted Tide Table)

Time (GMT)ElevationResidual
09-07-2025 15:006.630.01
 Next HWNext LW
18:08, 10.90 00:24, 2.42
Date Highest 2025 Date Lowest 2025
31-03 13.51m 28-04 2.59m
Time (GMT)ElevationResidual
09-07-2025 15:006.630.01
09-07-2025 14:506.30.02
09-07-2025 14:4060.05
09-07-2025 14:305.690.08
09-07-2025 14:205.390.1
09-07-2025 14:105.10.13
09-07-2025 14:004.810.15
09-07-2025 13:504.540.16
09-07-2025 13:404.270.17
09-07-2025 13:304.020.17
09-07-2025 13:203.780.17
09-07-2025 13:103.560.16
09-07-2025 13:003.360.15
09-07-2025 12:503.20.15
09-07-2025 12:403.030.12
09-07-2025 12:302.910.1
09-07-2025 12:202.810.08
09-07-2025 12:102.730.05
09-07-2025 12:002.690.03
09-07-2025 11:502.690.03
09-07-2025 11:402.720.02
09-07-2025 11:302.780.02
09-07-2025 11:202.870.02
09-07-2025 11:102.990.03
09-07-2025 11:003.120.03
09-07-2025 10:503.280.04
09-07-2025 10:403.450.04
09-07-2025 10:303.650.04
09-07-2025 10:203.850.04
09-07-2025 10:104.080.04
09-07-2025 10:004.310.03
09-07-2025 09:504.560.03
09-07-2025 09:404.810.02
09-07-2025 09:205.34-0.02
09-07-2025 09:105.62-0.03
09-07-2025 09:005.91-0.04
09-07-2025 08:506.21-0.05
09-07-2025 08:406.53-0.06
09-07-2025 08:306.83-0.07
09-07-2025 08:207.15-0.07
09-07-2025 08:107.47-0.07
09-07-2025 08:007.78-0.06
09-07-2025 07:508.09-0.06
09-07-2025 07:408.4-0.05
09-07-2025 07:308.69-0.04
09-07-2025 07:208.97-0.03
09-07-2025 07:109.23-0.02
09-07-2025 07:009.47-0.01
09-07-2025 06:509.69-0.01
09-07-2025 06:409.90.01
09-07-2025 06:3010.060.02
09-07-2025 06:2010.20.02
09-07-2025 06:1010.310.03
09-07-2025 06:0010.390.04
09-07-2025 05:5010.440.04
09-07-2025 05:4010.440.03
09-07-2025 05:3010.420.02
09-07-2025 05:2010.360.01
09-07-2025 05:1010.270
09-07-2025 05:0010.16-0.01
09-07-2025 04:5010.03-0.01
09-07-2025 04:409.86-0.02
09-07-2025 04:309.68-0.03
09-07-2025 04:209.47-0.04
09-07-2025 04:109.26-0.03
09-07-2025 04:009.02-0.03
09-07-2025 03:508.77-0.02
09-07-2025 03:408.5-0.03
09-07-2025 03:308.25-0
09-07-2025 03:207.970.01
09-07-2025 03:107.670.01
09-07-2025 03:007.380.03
09-07-2025 02:507.080.04
09-07-2025 02:406.780.06
09-07-2025 02:306.480.07
09-07-2025 02:206.180.09
09-07-2025 02:105.90.12
09-07-2025 02:005.610.14
09-07-2025 01:505.330.16
09-07-2025 01:405.050.18
09-07-2025 01:304.780.18
09-07-2025 01:204.510.18
09-07-2025 01:104.250.17
09-07-2025 01:0040.15
09-07-2025 00:503.770.13
09-07-2025 00:403.560.11
09-07-2025 00:303.370.09
09-07-2025 00:203.20.06
09-07-2025 00:103.060.03
09-07-2025 00:002.95-0
08-07-2025 23:502.86-0.03
08-07-2025 23:402.81-0.05
08-07-2025 23:302.79-0.06
08-07-2025 23:202.81-0.07
08-07-2025 23:102.85-0.08
08-07-2025 23:002.94-0.07
08-07-2025 22:503.05-0.05
08-07-2025 22:403.18-0.04
08-07-2025 22:303.33-0.03
08-07-2025 22:203.51-0.02
08-07-2025 22:103.7-0
08-07-2025 22:003.910.01
08-07-2025 21:504.140.02
08-07-2025 21:404.370.02
08-07-2025 21:304.630.03
08-07-2025 21:204.890.04
08-07-2025 21:105.160.05
08-07-2025 21:005.440.04
08-07-2025 20:505.730.05
08-07-2025 20:406.040.05
08-07-2025 20:306.350.06
08-07-2025 20:206.650.06
08-07-2025 20:106.970.07
08-07-2025 20:007.290.07
08-07-2025 19:507.610.08
08-07-2025 19:407.920.08
08-07-2025 19:308.220.08
08-07-2025 19:208.520.09
08-07-2025 19:108.820.1
08-07-2025 19:009.080.1
08-07-2025 18:509.340.11
08-07-2025 18:409.580.12
08-07-2025 18:309.80.13
08-07-2025 18:209.990.13
08-07-2025 18:1010.150.14
08-07-2025 18:0010.280.14
08-07-2025 17:5010.380.13
08-07-2025 17:4010.460.13
08-07-2025 17:3010.50.12
08-07-2025 17:2010.50.1
08-07-2025 17:1010.470.09
08-07-2025 17:0010.410.07
08-07-2025 16:5010.320.05
08-07-2025 16:4010.220.03
08-07-2025 16:3010.080.02
08-07-2025 16:209.92-0
08-07-2025 16:109.74-0.02
08-07-2025 16:009.53-0.03
08-07-2025 15:509.32-0.05
08-07-2025 15:409.08-0.05
08-07-2025 15:308.83-0.06
08-07-2025 15:208.58-0.07
08-07-2025 15:108.31-0.07
08-07-2025 15:008.04-0.06
08-07-2025 14:507.76-0.06
08-07-2025 14:407.48-0.05
08-07-2025 14:307.19-0.03
08-07-2025 14:206.91-0.02
08-07-2025 14:106.630.01
08-07-2025 14:006.350.03
08-07-2025 13:506.060.04
08-07-2025 13:405.790.06
08-07-2025 13:305.530.09
08-07-2025 13:205.270.11
08-07-2025 13:105.020.13
08-07-2025 13:004.780.15
08-07-2025 12:504.550.16
08-07-2025 12:404.330.16
08-07-2025 12:304.120.16
08-07-2025 12:203.920.15
08-07-2025 12:103.740.14
08-07-2025 12:003.570.12
08-07-2025 11:503.430.1
08-07-2025 11:403.310.07
08-07-2025 11:303.210.04
08-07-2025 11:203.140.02
08-07-2025 11:103.08-0.01
08-07-2025 11:003.06-0.03
08-07-2025 10:503.07-0.05
08-07-2025 10:403.11-0.05
08-07-2025 10:203.26-0.06
08-07-2025 10:103.38-0.04
08-07-2025 10:003.5-0.04
08-07-2025 09:503.66-0.03
08-07-2025 09:403.84-0.01
08-07-2025 09:304.020
08-07-2025 09:204.220.01
08-07-2025 09:104.440.02
08-07-2025 09:004.660.02
08-07-2025 08:504.90.03
08-07-2025 08:405.140.03
08-07-2025 08:305.40.04
08-07-2025 08:205.660.04
08-07-2025 08:105.940.04
08-07-2025 08:006.210.03
08-07-2025 07:506.50.04
08-07-2025 07:406.780.04
08-07-2025 07:307.070.04
08-07-2025 07:207.350.04
08-07-2025 07:107.630.03
08-07-2025 07:007.90.03
08-07-2025 06:508.160.02
08-07-2025 06:408.420.02
08-07-2025 06:308.660.01
08-07-2025 06:208.880.01
08-07-2025 06:109.090.01
08-07-2025 06:009.27-0.01
08-07-2025 05:509.44-0.01
08-07-2025 05:409.57-0.02
08-07-2025 05:309.69-0.03
08-07-2025 05:209.78-0.04
08-07-2025 05:109.84-0.06
08-07-2025 05:009.88-0.07
08-07-2025 04:509.87-0.09
08-07-2025 04:409.86-0.1
08-07-2025 04:309.81-0.12
08-07-2025 04:209.73-0.15
08-07-2025 04:109.65-0.16
08-07-2025 04:009.54-0.17
08-07-2025 03:509.4-0.18
08-07-2025 03:409.24-0.19
08-07-2025 03:309.08-0.19
08-07-2025 03:208.9-0.19
08-07-2025 03:108.69-0.2
08-07-2025 03:008.48-0.2
08-07-2025 02:508.26-0.18
08-07-2025 02:408.03-0.17
08-07-2025 02:307.81-0.15
08-07-2025 02:207.55-0.14
08-07-2025 02:107.3-0.12
08-07-2025 02:007.05-0.1
08-07-2025 01:506.79-0.08
08-07-2025 01:406.53-0.06
08-07-2025 01:306.28-0.03
08-07-2025 01:206.02-0.01
08-07-2025 01:105.780.03
08-07-2025 01:005.530.06
08-07-2025 00:505.290.08
08-07-2025 00:405.060.1
08-07-2025 00:304.830.11
08-07-2025 00:204.610.12
08-07-2025 00:104.390.12
08-07-2025 00:004.190.1
07-07-2025 23:5040.09
07-07-2025 23:403.840.09
07-07-2025 23:303.70.08
07-07-2025 23:203.570.05
07-07-2025 23:103.460.03
07-07-2025 23:003.380.02
07-07-2025 22:503.32-0
07-07-2025 22:403.28-0.03
07-07-2025 22:303.28-0.03
07-07-2025 22:203.31-0.03
07-07-2025 22:103.36-0.03
07-07-2025 22:003.44-0.02
07-07-2025 21:503.54-0.01
07-07-2025 21:403.670
07-07-2025 21:303.810.01
07-07-2025 21:203.970.03
07-07-2025 21:104.150.04
07-07-2025 21:004.330.05
07-07-2025 20:504.540.06
07-07-2025 20:404.750.07
07-07-2025 20:304.980.08
07-07-2025 20:205.220.08
07-07-2025 20:105.460.08
07-07-2025 20:005.720.09
07-07-2025 19:505.980.09
07-07-2025 19:406.250.09
07-07-2025 19:306.530.1
07-07-2025 19:206.820.11
07-07-2025 19:107.120.13
07-07-2025 19:007.410.14
07-07-2025 18:507.70.16
07-07-2025 18:407.980.17
07-07-2025 18:308.260.18
07-07-2025 18:208.520.19
07-07-2025 18:108.760.2
07-07-2025 18:0090.21
07-07-2025 17:509.210.21
07-07-2025 17:409.410.22
07-07-2025 17:309.570.22
07-07-2025 17:209.720.22
07-07-2025 17:109.840.21
07-07-2025 17:009.940.21
07-07-2025 16:50100.19
07-07-2025 16:4010.030.17
07-07-2025 16:3010.030.15
07-07-2025 16:2010.010.12
07-07-2025 16:109.950.09
07-07-2025 16:009.870.05
07-07-2025 15:509.770.02
07-07-2025 15:409.65-0.01
07-07-2025 15:309.51-0.04
07-07-2025 15:209.35-0.07
07-07-2025 15:109.18-0.09