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.

Port Isaac

Tide Levels and Harmonics

 

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Latest Tide Data (Predicted Tide Table)

Time (GMT)ElevationResidual
18-01-2026 20:503.68-0.08
 Next HWNext LW
05:43, 7.18 23:40, 1.51
Date Highest 2026 Date Lowest 2026
05-01 7.72m 05-01 0.71m
Time (GMT)ElevationResidual
11-12-2025 00:004.81-0.1
10-12-2025 23:504.99-0.09
10-12-2025 23:405.16-0.08
10-12-2025 23:305.32-0.08
10-12-2025 23:205.5-0.06
10-12-2025 23:105.63-0.07
10-12-2025 23:005.78-0.05
10-12-2025 22:505.87-0.09
10-12-2025 22:406.03-0.03
10-12-2025 22:306.15-0.02
10-12-2025 22:206.24-0.01
10-12-2025 22:106.31-0
10-12-2025 22:006.33-0.04
10-12-2025 21:506.430.02
10-12-2025 21:406.38-0.04
10-12-2025 21:306.460.03
10-12-2025 21:206.4-0.01
10-12-2025 21:106.380.01
10-12-2025 21:006.32-0.01
10-12-2025 20:506.22-0.04
10-12-2025 20:406.13-0.04
10-12-2025 20:306.04-0.02
10-12-2025 20:205.89-0.05
10-12-2025 20:105.75-0.06
10-12-2025 20:005.61-0.06
10-12-2025 19:505.48-0.03
10-12-2025 19:405.31-0.03
10-12-2025 19:305.13-0.03
10-12-2025 19:204.95-0.03
10-12-2025 19:104.77-0.02
10-12-2025 19:004.60.01
10-12-2025 18:504.420.03
10-12-2025 18:404.18-0.02
10-12-2025 18:304.010.01
10-12-2025 18:203.78-0.02
10-12-2025 18:103.58-0.03
10-12-2025 18:003.39-0.03
10-12-2025 17:503.17-0.07
10-12-2025 17:403-0.07
10-12-2025 17:302.82-0.08
10-12-2025 17:202.72-0.02
10-12-2025 17:102.54-0.06
10-12-2025 17:002.36-0.11
10-12-2025 16:502.19-0.15
10-12-2025 16:402.13-0.11
10-12-2025 16:302.05-0.09
10-12-2025 16:201.88-0.18
10-12-2025 16:101.88-0.13
10-12-2025 16:001.8-0.15
10-12-2025 15:501.8-0.13
10-12-2025 15:401.82-0.1
10-12-2025 15:301.74-0.18
10-12-2025 15:201.73-0.2
10-12-2025 15:101.86-0.11
10-12-2025 15:001.83-0.19
10-12-2025 14:501.84-0.24
10-12-2025 14:402.07-0.08
10-12-2025 14:302.05-0.2
10-12-2025 14:202.19-0.17
10-12-2025 14:102.35-0.12
10-12-2025 14:002.51-0.09
10-12-2025 13:502.57-0.16
10-12-2025 13:402.72-0.15
10-12-2025 13:302.96-0.07
10-12-2025 13:203.1-0.1
10-12-2025 13:103.23-0.14
10-12-2025 13:003.37-0.17
10-12-2025 12:503.6-0.13
10-12-2025 12:403.81-0.1
10-12-2025 12:303.99-0.11
10-12-2025 12:204.25-0.05
10-12-2025 12:104.4-0.1
10-12-2025 12:004.66-0.03
10-12-2025 11:504.86-0.02
10-12-2025 11:405.05-0.03
10-12-2025 11:305.19-0.08
10-12-2025 11:205.460.01
10-12-2025 11:105.61-0.03
10-12-2025 11:005.75-0.06
10-12-2025 10:505.97-0.01
10-12-2025 10:406.12-0.01
10-12-2025 10:306.26-0.02
10-12-2025 10:206.39-0.02
10-12-2025 10:106.5-0.04
10-12-2025 10:006.660.02
10-12-2025 09:506.760.03
10-12-2025 09:206.920.02
10-12-2025 09:106.960.04
10-12-2025 09:006.91-0.02
10-12-2025 08:506.960.05
10-12-2025 08:406.90.03
10-12-2025 08:306.830.02
10-12-2025 08:206.830.09
10-12-2025 08:106.720.08
10-12-2025 08:006.44-0.09
10-12-2025 07:506.410.01
10-12-2025 07:406.30.04
10-12-2025 07:306.09-0.01
10-12-2025 07:205.91-0.03
10-12-2025 07:105.69-0.06
10-12-2025 07:005.55-0.01
10-12-2025 06:505.33-0.03
10-12-2025 06:405.11-0.04
10-12-2025 06:304.93-0.01
10-12-2025 06:204.67-0.06
10-12-2025 06:104.520.01
10-12-2025 06:004.320.02
10-12-2025 05:504.07-0.01
10-12-2025 05:403.86-0
10-12-2025 05:303.65-0.01
10-12-2025 05:203.43-0.03
10-12-2025 05:103.270.02
10-12-2025 05:003.05-0.02
10-12-2025 04:502.940.06
10-12-2025 04:402.67-0.05
10-12-2025 04:302.53-0.03
10-12-2025 04:202.450.03
10-12-2025 04:102.340.04
10-12-2025 04:002.190.01
10-12-2025 03:502.190.1
10-12-2025 03:402.090.08
10-12-2025 03:302.030.08
10-12-2025 03:201.910.01
10-12-2025 03:101.920.05
10-12-2025 03:001.970.11
10-12-2025 02:501.990.12
10-12-2025 02:402.040.15
10-12-2025 02:302.080.15
10-12-2025 02:202.120.14
10-12-2025 02:102.260.21
10-12-2025 02:002.40.27
10-12-2025 01:502.520.29
10-12-2025 01:402.590.25
10-12-2025 01:302.740.27
10-12-2025 01:202.880.28
10-12-2025 01:103.020.27
10-12-2025 01:003.180.28
10-12-2025 00:503.420.36
10-12-2025 00:403.560.32
10-12-2025 00:303.730.31
10-12-2025 00:203.850.25
10-12-2025 00:104.050.24