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
17-09-2026 01:006.390.14
 Next HWNext LW
10:01, 10.65 03:48, 2.71
Date Highest 2026 Date Lowest 2026
04-02 13.05m 18-01 2.59m
Time (GMT)ElevationResidual
10-04-2026 00:008.74-0.34
09-04-2026 23:508.84-0.35
09-04-2026 23:408.93-0.36
09-04-2026 23:309.01-0.35
09-04-2026 23:209.05-0.36
09-04-2026 23:109.08-0.37
09-04-2026 23:009.1-0.37
09-04-2026 22:509.09-0.38
09-04-2026 22:409.07-0.38
09-04-2026 22:309.02-0.38
09-04-2026 22:208.97-0.37
09-04-2026 22:108.9-0.36
09-04-2026 22:008.81-0.35
09-04-2026 21:508.71-0.34
09-04-2026 21:408.59-0.33
09-04-2026 21:308.47-0.3
09-04-2026 21:208.34-0.26
09-04-2026 21:108.19-0.24
09-04-2026 21:008.05-0.2
09-04-2026 20:507.9-0.15
09-04-2026 20:407.74-0.1
09-04-2026 20:307.58-0.05
09-04-2026 20:207.410.01
09-04-2026 20:107.250.07
09-04-2026 20:007.070.12
09-04-2026 19:506.880.17
09-04-2026 19:406.690.22
09-04-2026 19:306.510.27
09-04-2026 19:206.320.31
09-04-2026 19:106.110.34
09-04-2026 19:005.920.38
09-04-2026 18:505.710.4
09-04-2026 18:405.510.42
09-04-2026 18:305.310.42
09-04-2026 18:205.110.42
09-04-2026 18:104.920.41
09-04-2026 18:004.720.39
09-04-2026 17:504.540.36
09-04-2026 17:404.380.34
09-04-2026 17:304.230.31
09-04-2026 17:204.110.3
09-04-2026 17:1040.27
09-04-2026 17:003.910.24
09-04-2026 16:503.830.19
09-04-2026 16:403.770.16
09-04-2026 16:303.770.14
09-04-2026 16:203.780.13
09-04-2026 16:103.810.1
09-04-2026 16:003.890.1
09-04-2026 15:503.960.08
09-04-2026 15:404.050.05
09-04-2026 15:304.170.04
09-04-2026 15:204.290
09-04-2026 15:104.43-0.03
09-04-2026 15:004.6-0.04
09-04-2026 14:504.78-0.07
09-04-2026 14:404.97-0.09
09-04-2026 14:305.18-0.1
09-04-2026 14:205.41-0.11
09-04-2026 14:105.63-0.12
09-04-2026 14:005.86-0.13
09-04-2026 13:506.1-0.15
09-04-2026 13:406.33-0.17
09-04-2026 13:306.58-0.17
09-04-2026 13:206.83-0.18
09-04-2026 13:107.08-0.18
09-04-2026 13:007.33-0.18
09-04-2026 12:507.56-0.2
09-04-2026 12:407.83-0.17
09-04-2026 12:308.05-0.18
09-04-2026 12:208.27-0.18
09-04-2026 12:108.47-0.18
09-04-2026 12:008.66-0.18
09-04-2026 11:508.82-0.2
09-04-2026 11:408.98-0.19
09-04-2026 11:309.11-0.2
09-04-2026 11:209.23-0.2
09-04-2026 11:109.31-0.21
09-04-2026 11:009.39-0.2
09-04-2026 10:509.43-0.21
09-04-2026 10:409.46-0.2
09-04-2026 10:309.46-0.2
09-04-2026 10:209.44-0.2
09-04-2026 10:109.4-0.19
09-04-2026 10:009.35-0.18
09-04-2026 09:509.27-0.16
09-04-2026 09:409.17-0.15
09-04-2026 09:309.05-0.13
09-04-2026 09:208.92-0.12
09-04-2026 09:108.78-0.09
09-04-2026 09:008.61-0.06
09-04-2026 08:508.43-0.05
09-04-2026 08:408.24-0.02
09-04-2026 08:308.050.01
09-04-2026 08:207.830.02
09-04-2026 08:107.640.08
09-04-2026 08:007.390.08
09-04-2026 07:507.160.1
09-04-2026 07:406.920.13
09-04-2026 07:306.690.15
09-04-2026 07:206.440.17
09-04-2026 07:106.210.2
09-04-2026 07:005.960.21
09-04-2026 06:505.720.22
09-04-2026 06:405.490.24
09-04-2026 06:305.260.25
09-04-2026 06:205.020.25
09-04-2026 06:104.80.25
09-04-2026 06:004.590.25
09-04-2026 05:504.370.22
09-04-2026 05:404.180.21
09-04-2026 05:303.990.18
09-04-2026 05:203.820.15
09-04-2026 05:103.670.12
09-04-2026 05:003.530.09
09-04-2026 04:503.430.06
09-04-2026 04:403.330.02
09-04-2026 04:303.26-0.03
09-04-2026 04:203.23-0.06
09-04-2026 04:103.22-0.09
09-04-2026 04:003.25-0.11
09-04-2026 03:503.31-0.12
09-04-2026 03:403.39-0.13
09-04-2026 03:303.51-0.13
09-04-2026 03:203.66-0.12
09-04-2026 03:103.81-0.13
09-04-2026 03:004-0.12
09-04-2026 02:504.2-0.12
09-04-2026 02:404.4-0.13
09-04-2026 02:304.64-0.11
09-04-2026 02:204.87-0.12
09-04-2026 02:105.12-0.12
09-04-2026 02:005.38-0.11
09-04-2026 01:505.65-0.12
09-04-2026 01:405.91-0.12
09-04-2026 01:306.19-0.12
09-04-2026 01:206.47-0.12
09-04-2026 01:106.75-0.11
09-04-2026 01:007.03-0.12
09-04-2026 00:507.31-0.12
09-04-2026 00:407.58-0.12
09-04-2026 00:307.85-0.12
09-04-2026 00:208.11-0.12
09-04-2026 00:108.35-0.13