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
11-12-2025 07:506.090.2
 Next HWNext LW
11:26, 10.41 17:46, 3.41
Date Highest 2025 Date Lowest 2025
08-11 56.61m 28-04 2.59m
Time (GMT)ElevationResidual
31-10-2024 00:00--
30-10-2024 23:50--
30-10-2024 23:40--
30-10-2024 23:30--
30-10-2024 23:20--
30-10-2024 23:10--
30-10-2024 23:002.590.17
30-10-2024 22:502.810.19
30-10-2024 22:403.040.21
30-10-2024 22:303.290.22
30-10-2024 22:203.560.22
30-10-2024 22:103.840.22
30-10-2024 22:004.130.21
30-10-2024 21:504.430.2
30-10-2024 21:404.760.2
30-10-2024 21:305.10.19
30-10-2024 21:205.440.18
30-10-2024 21:105.790.16
30-10-2024 21:006.140.14
30-10-2024 20:506.520.13
30-10-2024 20:406.90.12
30-10-2024 20:307.280.11
30-10-2024 20:207.660.09
30-10-2024 20:108.050.08
30-10-2024 20:008.420.05
30-10-2024 19:508.780.02
30-10-2024 19:409.13-0.01
30-10-2024 19:309.47-0.04
30-10-2024 19:209.8-0.07
30-10-2024 19:1010.1-0.1
30-10-2024 19:0010.37-0.13
30-10-2024 18:5010.62-0.17
30-10-2024 18:4010.84-0.2
30-10-2024 18:3011.01-0.25
30-10-2024 18:2011.15-0.29
30-10-2024 18:1011.26-0.31
30-10-2024 18:0011.33-0.35
30-10-2024 17:5011.34-0.39
30-10-2024 17:4011.32-0.43
30-10-2024 17:3011.26-0.46
30-10-2024 17:2011.16-0.49
30-10-2024 17:1011.02-0.52
30-10-2024 17:0010.86-0.54
30-10-2024 16:5010.66-0.56
30-10-2024 16:4010.41-0.58
30-10-2024 16:3010.16-0.58
30-10-2024 16:209.9-0.57
30-10-2024 16:109.61-0.56
30-10-2024 16:009.3-0.55
30-10-2024 15:508.99-0.53
30-10-2024 15:408.65-0.51
30-10-2024 15:308.29-0.5
30-10-2024 15:207.93-0.48
30-10-2024 15:107.57-0.46
30-10-2024 15:007.2-0.44
30-10-2024 14:506.83-0.42
30-10-2024 14:406.46-0.4
30-10-2024 14:306.09-0.37
30-10-2024 14:205.74-0.32
30-10-2024 14:105.39-0.29
30-10-2024 14:005.04-0.27
30-10-2024 13:504.7-0.23
30-10-2024 13:404.36-0.21
30-10-2024 13:304.03-0.19
30-10-2024 13:203.72-0.19
30-10-2024 13:103.43-0.17
30-10-2024 13:003.16-0.15
30-10-2024 12:502.93-0.13
30-10-2024 12:402.72-0.1
30-10-2024 12:30--
30-10-2024 12:20--
30-10-2024 12:10--
30-10-2024 12:00--
30-10-2024 11:50--
30-10-2024 11:40--
30-10-2024 11:30--
30-10-2024 11:20--
30-10-2024 11:10--
30-10-2024 11:00--
30-10-2024 10:50--
30-10-2024 10:402.730.15
30-10-2024 10:302.940.18
30-10-2024 10:203.170.19
30-10-2024 10:103.420.2
30-10-2024 10:003.670.2
30-10-2024 09:503.940.19
30-10-2024 09:404.230.18
30-10-2024 09:304.540.18
30-10-2024 09:204.860.18
30-10-2024 09:105.190.16
30-10-2024 09:005.520.15
30-10-2024 08:505.870.14
30-10-2024 08:406.230.12
30-10-2024 08:306.60.11
30-10-2024 08:206.970.11
30-10-2024 08:107.360.11
30-10-2024 08:007.730.1
30-10-2024 07:508.10.08
30-10-2024 07:408.460.06
30-10-2024 07:308.820.05
30-10-2024 07:209.170.04
30-10-2024 07:109.50.03
30-10-2024 07:009.820.02
30-10-2024 06:5010.09-0.01
30-10-2024 06:4010.36-0.02
30-10-2024 06:3010.59-0.04
30-10-2024 06:2010.78-0.06
30-10-2024 06:1010.95-0.08
30-10-2024 06:0011.08-0.09
30-10-2024 05:5011.17-0.11
30-10-2024 05:4011.19-0.15
30-10-2024 05:3011.18-0.18
30-10-2024 05:2011.13-0.21
30-10-2024 05:1011.04-0.25
30-10-2024 05:0010.91-0.28
30-10-2024 04:5010.76-0.3
30-10-2024 04:4010.57-0.32
30-10-2024 04:3010.33-0.36
30-10-2024 04:2010.08-0.37
30-10-2024 04:109.82-0.37
30-10-2024 04:009.53-0.38
30-10-2024 03:509.22-0.39
30-10-2024 03:408.91-0.38
30-10-2024 03:308.58-0.38
30-10-2024 03:208.23-0.38
30-10-2024 03:107.88-0.38
30-10-2024 03:007.53-0.37
30-10-2024 02:507.17-0.36
30-10-2024 02:406.81-0.35
30-10-2024 02:306.44-0.35
30-10-2024 02:206.09-0.33
30-10-2024 02:105.75-0.31
30-10-2024 02:005.41-0.29
30-10-2024 01:505.08-0.27
30-10-2024 01:404.76-0.25
30-10-2024 01:304.43-0.25
30-10-2024 01:204.13-0.24
30-10-2024 01:103.84-0.23
30-10-2024 01:003.56-0.22
30-10-2024 00:503.31-0.22
30-10-2024 00:403.08-0.21
30-10-2024 00:302.88-0.2
30-10-2024 00:202.69-0.19
30-10-2024 00:10--