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
12-12-2025 12:405.61-0
 Next HWNext LW
23:31, 5.92 17:31, 2.44
Date Highest 2025 Date Lowest 2025
05-11 8.38m 30-03 -0.05m
Time (GMT)ElevationResidual
10-11-2025 00:003.310.17
09-11-2025 23:503.450.11
09-11-2025 23:403.670.12
09-11-2025 23:303.910.15
09-11-2025 23:204.120.14
09-11-2025 23:104.290.09
09-11-2025 23:004.620.19
09-11-2025 22:504.790.14
09-11-2025 22:405.010.14
09-11-2025 22:305.220.12
09-11-2025 22:205.480.16
09-11-2025 22:105.610.07
09-11-2025 22:005.870.12
09-11-2025 21:506.020.07
09-11-2025 21:406.270.13
09-11-2025 21:306.390.07
09-11-2025 21:206.580.1
09-11-2025 21:106.660.02
09-11-2025 21:006.830.06
09-11-2025 20:5070.12
09-11-2025 20:407.080.1
09-11-2025 20:307.130.08
09-11-2025 20:207.240.13
09-11-2025 20:107.280.13
09-11-2025 20:007.280.13
09-11-2025 19:507.220.08
09-11-2025 19:407.220.12
09-11-2025 19:307.180.13
09-11-2025 19:207.080.11
09-11-2025 19:107.050.19
09-11-2025 19:006.890.15
09-11-2025 18:506.70.11
09-11-2025 18:406.580.15
09-11-2025 18:306.40.15
09-11-2025 18:206.210.15
09-11-2025 18:106.080.23
09-11-2025 18:005.750.12
09-11-2025 17:505.610.21
09-11-2025 17:405.310.15
09-11-2025 17:305.120.21
09-11-2025 17:204.830.17
09-11-2025 17:104.610.2
09-11-2025 17:004.390.23
09-11-2025 16:504.090.19
09-11-2025 16:403.910.25
09-11-2025 16:303.670.25
09-11-2025 16:203.380.2
09-11-2025 16:103.190.24
09-11-2025 16:002.940.21
09-11-2025 15:502.790.26
09-11-2025 15:402.510.18
09-11-2025 15:302.390.25
09-11-2025 15:202.220.24
09-11-2025 15:102.050.22
09-11-2025 15:001.940.24
09-11-2025 14:501.780.2
09-11-2025 14:401.730.24
09-11-2025 14:301.570.16
09-11-2025 14:201.590.23
09-11-2025 14:101.490.16
09-11-2025 14:001.460.15
09-11-2025 13:501.510.19
09-11-2025 13:401.490.15
09-11-2025 13:301.550.16
09-11-2025 13:201.540.1
09-11-2025 13:101.690.16
09-11-2025 13:001.740.11
09-11-2025 12:501.910.17
09-11-2025 12:402.010.14
09-11-2025 12:302.170.15
09-11-2025 12:202.340.17
09-11-2025 12:102.50.15
09-11-2025 12:002.670.14
09-11-2025 11:502.890.15
09-11-2025 11:403.070.13
09-11-2025 11:303.260.11
09-11-2025 11:203.470.09
09-11-2025 11:103.730.12
09-11-2025 11:003.930.08
09-11-2025 10:504.150.06
09-11-2025 10:404.450.12
09-11-2025 10:304.690.1
09-11-2025 10:204.890.06
09-11-2025 10:105.150.07
09-11-2025 10:005.380.06
09-11-2025 09:505.640.07
09-11-2025 09:405.840.04
09-11-2025 09:306.070.04
09-11-2025 09:206.270.02
09-11-2025 09:106.510.06
09-11-2025 09:006.670.03
09-11-2025 08:506.870.04
09-11-2025 08:407.040.05
09-11-2025 08:307.170.03
09-11-2025 08:207.310.05
09-11-2025 08:107.420.06
09-11-2025 08:007.560.11
09-11-2025 07:507.590.08
09-11-2025 07:407.620.08
09-11-2025 07:307.580.02
09-11-2025 07:207.610.07
09-11-2025 07:107.60.1
09-11-2025 07:007.540.1
09-11-2025 06:507.420.07
09-11-2025 06:407.370.13
09-11-2025 06:307.180.08
09-11-2025 06:207.090.14
09-11-2025 06:106.850.07
09-11-2025 06:006.70.12
09-11-2025 05:506.430.06
09-11-2025 05:406.310.17
09-11-2025 05:3060.1
09-11-2025 05:205.740.08
09-11-2025 05:105.470.08
09-11-2025 05:005.250.12
09-11-2025 04:5050.14
09-11-2025 04:404.690.11
09-11-2025 04:304.450.15
09-11-2025 04:204.130.1
09-11-2025 04:103.820.07
09-11-2025 04:003.620.13
09-11-2025 03:503.350.12
09-11-2025 03:403.10.13
09-11-2025 03:302.850.11
09-11-2025 03:202.630.12
09-11-2025 03:102.390.1
09-11-2025 03:002.120.03
09-11-2025 02:501.990.08
09-11-2025 02:401.880.14
09-11-2025 02:301.650.05
09-11-2025 02:201.60.12
09-11-2025 02:101.390.02
09-11-2025 02:001.410.13
09-11-2025 01:501.320.1
09-11-2025 01:401.250.06
09-11-2025 01:301.280.11
09-11-2025 01:201.260.09
09-11-2025 01:101.310.11
09-11-2025 01:001.380.13
09-11-2025 00:501.360.04
09-11-2025 00:401.590.18
09-11-2025 00:301.670.16
09-11-2025 00:201.730.09
09-11-2025 00:101.860.08