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
09-11-2025 10:1011.490.3
 Next HWNext LW
21:40, 11.43 15:28, 2.05
Date Highest 2025 Date Lowest 2025
08-11 56.61m 28-04 2.59m
Time (GMT)ElevationResidual
09-11-2025 10:1011.490.3
09-11-2025 10:0011.730.29
09-11-2025 09:5011.930.3
09-11-2025 09:4012.10.3
09-11-2025 09:3012.210.3
09-11-2025 09:2012.270.28
09-11-2025 09:1012.290.27
09-11-2025 09:0012.250.25
09-11-2025 08:5012.170.23
09-11-2025 08:4012.030.2
09-11-2025 08:3011.840.17
09-11-2025 08:2011.610.14
09-11-2025 08:1011.360.12
09-11-2025 08:0011.060.1
09-11-2025 07:5010.750.09
09-11-2025 07:4010.40.07
09-11-2025 07:3010.040.06
09-11-2025 07:209.670.06
09-11-2025 07:109.270.06
09-11-2025 07:008.860.04
09-11-2025 06:508.430.03
09-11-2025 06:408.020.03
09-11-2025 06:307.590.01
09-11-2025 06:207.14-0.03
09-11-2025 06:106.73-0.02
09-11-2025 06:006.32-0.03
09-11-2025 05:505.9-0.04
09-11-2025 05:405.49-0.05
09-11-2025 05:305.1-0.06
09-11-2025 05:204.7-0.08
09-11-2025 05:104.31-0.12
09-11-2025 05:003.95-0.13
09-11-2025 04:503.59-0.15
09-11-2025 04:403.27-0.15
09-11-2025 04:302.99-0.14
09-11-2025 04:202.75-0.11
09-11-2025 04:10--
09-11-2025 04:00--
09-11-2025 03:50--
09-11-2025 03:40--
09-11-2025 03:30--
09-11-2025 03:20--
09-11-2025 03:10--
09-11-2025 03:00--
09-11-2025 02:50--
09-11-2025 02:40--
09-11-2025 02:30--
09-11-2025 02:20--
09-11-2025 02:102.610.29
09-11-2025 02:002.830.31
09-11-2025 01:503.090.33
09-11-2025 01:403.360.34
09-11-2025 01:303.650.34
09-11-2025 01:203.940.33
09-11-2025 01:104.250.31
09-11-2025 01:004.580.3
09-11-2025 00:504.920.28
09-11-2025 00:405.280.26
09-11-2025 00:305.650.26
09-11-2025 00:206.020.24
09-11-2025 00:106.410.23
09-11-2025 00:006.80.22
08-11-2025 23:507.20.22
08-11-2025 23:407.610.22
08-11-2025 23:308.040.23
08-11-2025 23:208.460.25
08-11-2025 23:108.870.25
08-11-2025 23:009.310.28
08-11-2025 22:509.70.27
08-11-2025 22:4010.070.25
08-11-2025 22:3010.470.28
08-11-2025 22:2010.860.31
08-11-2025 22:1011.210.34
08-11-2025 22:0011.520.35
08-11-2025 21:5011.820.37
08-11-2025 21:4012.060.37
08-11-2025 21:3012.250.37
08-11-2025 21:2012.410.37
08-11-2025 21:1012.520.37
08-11-2025 21:0012.550.34
08-11-2025 20:5012.520.31
08-11-2025 20:4012.450.27
08-11-2025 20:3012.330.24
08-11-2025 20:2012.160.21
08-11-2025 20:1011.930.17
08-11-2025 20:0011.670.14
08-11-2025 19:5011.380.12
08-11-2025 19:4011.050.1
08-11-2025 19:3056.6146
08-11-2025 19:2010.330.08
08-11-2025 19:109.960.09
08-11-2025 19:009.560.1
08-11-2025 18:509.140.1
08-11-2025 18:40--
08-11-2025 18:308.290.11
08-11-2025 18:207.850.11
08-11-2025 18:107.40.09
08-11-2025 18:006.950.08
08-11-2025 17:506.530.08
08-11-2025 17:406.110.08
08-11-2025 17:305.690.08
08-11-2025 17:205.280.06
08-11-2025 17:104.870.05
08-11-2025 17:004.470.04
08-11-2025 16:504.080.02
08-11-2025 16:403.7-0
08-11-2025 16:303.36-0.01
08-11-2025 16:203.05-0
08-11-2025 16:102.750
08-11-2025 16:00--
08-11-2025 15:50--
08-11-2025 15:40--
08-11-2025 15:30--
08-11-2025 15:20--
08-11-2025 15:10--
08-11-2025 15:00--
08-11-2025 14:50--
08-11-2025 14:40--
08-11-2025 14:30--
08-11-2025 14:20--
08-11-2025 14:10--
08-11-2025 14:00--
08-11-2025 13:50--
08-11-2025 13:402.630.43
08-11-2025 13:302.880.45
08-11-2025 13:203.150.45
08-11-2025 13:103.440.45
08-11-2025 13:003.740.44
08-11-2025 12:504.060.43
08-11-2025 12:404.390.42
08-11-2025 12:304.740.41
08-11-2025 12:205.090.4
08-11-2025 12:105.450.38
08-11-2025 12:005.840.38
08-11-2025 11:506.240.38
08-11-2025 11:406.630.37
08-11-2025 11:307.040.36
08-11-2025 11:207.460.35
08-11-2025 11:107.880.35
08-11-2025 11:008.330.36
08-11-2025 10:508.770.37
08-11-2025 10:409.180.35
08-11-2025 10:309.630.36
08-11-2025 10:2010.010.33
08-11-2025 10:1010.40.29
08-11-2025 10:0010.80.3
08-11-2025 09:5011.180.3
08-11-2025 09:4011.530.3
08-11-2025 09:3011.840.28
08-11-2025 09:2012.130.28
08-11-2025 09:1012.360.26
08-11-2025 09:0012.560.26
08-11-2025 08:5012.710.25
08-11-2025 08:4012.80.24
08-11-2025 08:3012.810.2
08-11-2025 08:2012.790.18
08-11-2025 08:1012.70.15
08-11-2025 08:0012.580.13
08-11-2025 07:5012.390.11
08-11-2025 07:4012.140.07
08-11-2025 07:3011.860.04
08-11-2025 07:2011.550.03
08-11-2025 07:1011.220.03
08-11-2025 07:0010.840.02
08-11-2025 06:5010.440
08-11-2025 06:4010.040.02
08-11-2025 06:309.58-0.01
08-11-2025 06:209.150
08-11-2025 06:108.69-0.01
08-11-2025 06:008.22-0.01
08-11-2025 05:507.74-0.04
08-11-2025 05:407.26-0.06
08-11-2025 05:306.81-0.05
08-11-2025 05:206.36-0.05
08-11-2025 05:105.9-0.06
08-11-2025 05:005.45-0.07
08-11-2025 04:505.03-0.06
08-11-2025 04:404.6-0.06
08-11-2025 04:304.16-0.09
08-11-2025 04:203.76-0.09
08-11-2025 04:103.39-0.09
08-11-2025 04:003.04-0.07
08-11-2025 03:502.72-0.05
08-11-2025 03:40--
08-11-2025 03:30--
08-11-2025 03:20--
08-11-2025 03:10--
08-11-2025 03:00--
08-11-2025 02:50--
08-11-2025 02:40--
08-11-2025 02:30--
08-11-2025 02:20--
08-11-2025 02:10--
08-11-2025 02:00--
08-11-2025 01:50--
08-11-2025 01:40--
08-11-2025 01:30--
08-11-2025 01:202.620.61
08-11-2025 01:102.890.62
08-11-2025 01:003.180.62
08-11-2025 00:503.480.61
08-11-2025 00:403.790.59
08-11-2025 00:304.120.57
08-11-2025 00:204.460.54
08-11-2025 00:104.820.52
08-11-2025 00:005.190.49
07-11-2025 23:505.570.47
07-11-2025 23:405.970.46
07-11-2025 23:306.380.45
07-11-2025 23:206.790.43
07-11-2025 23:107.220.42
07-11-2025 23:007.650.42
07-11-2025 22:508.10.42
07-11-2025 22:408.560.43
07-11-2025 22:309.020.44
07-11-2025 22:209.440.42
07-11-2025 22:109.90.43
07-11-2025 22:0010.310.4
07-11-2025 21:5010.70.37
07-11-2025 21:4011.130.39
07-11-2025 21:3011.530.41
07-11-2025 21:2011.890.42
07-11-2025 21:1012.220.42
07-11-2025 21:0012.50.41
07-11-2025 20:5012.740.4
07-11-2025 20:4012.940.4
07-11-2025 20:3013.080.4
07-11-2025 20:2013.150.37
07-11-2025 20:1013.130.32
07-11-2025 20:0013.080.29
07-11-2025 19:5012.960.25
07-11-2025 19:4012.80.21
07-11-2025 19:3012.570.17
07-11-2025 19:2012.290.12
07-11-2025 19:1011.990.1
07-11-2025 19:0011.650.08
07-11-2025 18:5011.270.07
07-11-2025 18:4010.870.05
07-11-2025 18:3010.450.04
07-11-2025 18:2010.020.04
07-11-2025 18:109.550.03
07-11-2025 18:009.080.02
07-11-2025 17:508.620.02
07-11-2025 17:408.140.02
07-11-2025 17:307.64-0.02
07-11-2025 17:207.17-0.01
07-11-2025 17:106.7-0.01
07-11-2025 17:006.23-0.02
07-11-2025 16:505.76-0.04
07-11-2025 16:405.29-0.06
07-11-2025 16:304.87-0.04
07-11-2025 16:204.41-0.07
07-11-2025 16:103.99-0.07
07-11-2025 16:003.58-0.08
07-11-2025 15:503.22-0.05
07-11-2025 15:402.88-0.02
07-11-2025 15:30--
07-11-2025 15:20--
07-11-2025 15:10--
07-11-2025 15:00--
07-11-2025 14:50--
07-11-2025 14:40--
07-11-2025 14:30--
07-11-2025 14:20--
07-11-2025 14:10--
07-11-2025 14:00--
07-11-2025 13:50--
07-11-2025 13:40--
07-11-2025 13:30--
07-11-2025 13:20--
07-11-2025 13:10--
07-11-2025 13:00--
07-11-2025 12:502.690.65
07-11-2025 12:402.970.65
07-11-2025 12:303.260.64
07-11-2025 12:203.570.63
07-11-2025 12:103.890.6
07-11-2025 12:004.220.57
07-11-2025 11:504.580.57
07-11-2025 11:404.940.54
07-11-2025 11:305.310.53
07-11-2025 11:205.70.51
07-11-2025 11:106.10.5
07-11-2025 11:006.510.49
07-11-2025 10:506.920.47
07-11-2025 10:407.360.46
07-11-2025 10:307.80.45
07-11-2025 10:208.250.45
07-11-2025 10:108.70.44