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
17-01-2026 04:206.780.18
 Next HWNext LW
04:30, 6.61 10:45, 1.89
Date Highest 2026 Date Lowest 2026
05-01 7.72m 05-01 0.71m
Time (GMT)ElevationResidual
21-04-2025 00:004.99-0.02
20-04-2025 23:505.11-0.02
20-04-2025 23:405.22-0
20-04-2025 23:305.31-0
20-04-2025 23:205.420.02
20-04-2025 23:105.510.04
20-04-2025 23:005.570.03
20-04-2025 22:505.640.05
20-04-2025 22:405.710.07
20-04-2025 22:305.740.07
20-04-2025 22:205.790.09
20-04-2025 22:105.810.1
20-04-2025 22:005.830.12
20-04-2025 21:505.830.12
20-04-2025 21:405.830.14
20-04-2025 21:305.790.14
20-04-2025 21:205.780.16
20-04-2025 21:105.720.16
20-04-2025 21:005.670.17
20-04-2025 20:505.610.17
20-04-2025 20:405.530.18
20-04-2025 20:305.440.18
20-04-2025 20:205.360.19
20-04-2025 20:105.250.18
20-04-2025 17:403.550.22
20-04-2025 17:303.460.23
20-04-2025 17:203.360.22
20-04-2025 17:103.290.23
20-04-2025 17:003.220.23
20-04-2025 16:503.150.23
20-04-2025 16:403.090.23
20-04-2025 16:303.060.24
20-04-2025 16:202.980.2
20-04-2025 16:102.960.22
20-04-2025 16:002.920.2
20-04-2025 15:502.90.19
20-04-2025 15:402.890.19
20-04-2025 15:302.90.19
20-04-2025 15:202.910.19
20-04-2025 15:102.920.17
20-04-2025 15:002.950.18
20-04-2025 14:502.980.16
20-04-2025 14:403.020.16
20-04-2025 14:303.060.14
20-04-2025 14:203.110.12
20-04-2025 14:103.190.12
20-04-2025 14:003.220.08
20-04-2025 13:503.290.06
20-04-2025 13:403.380.05
20-04-2025 13:303.470.04
20-04-2025 13:203.560.02
20-04-2025 13:103.670.02
20-04-2025 13:003.780.02
20-04-2025 12:503.89-0
20-04-2025 12:404.020.01
20-04-2025 12:304.13-0.01
20-04-2025 12:204.26-0.01
20-04-2025 12:104.38-0.02
20-04-2025 12:004.52-0.01
20-04-2025 11:504.62-0.03
20-04-2025 11:404.77-0.01
20-04-2025 11:304.89-0.01
20-04-2025 11:205-0.01
20-04-2025 11:105.130
20-04-2025 11:005.21-0.01
20-04-2025 10:505.340.02
20-04-2025 10:405.420.01
20-04-2025 10:305.520.03
20-04-2025 10:205.590.03
20-04-2025 10:105.680.07
20-04-2025 10:005.720.06
20-04-2025 09:505.780.09
20-04-2025 09:405.80.09
20-04-2025 09:305.80.09
20-04-2025 09:205.830.13
20-04-2025 09:105.840.15
20-04-2025 09:005.820.16
20-04-2025 08:505.810.2
20-04-2025 08:405.760.2
20-04-2025 08:305.70.2
20-04-2025 08:205.650.23
20-04-2025 08:105.570.23
20-04-2025 08:005.480.24
20-04-2025 07:505.380.24
20-04-2025 07:405.310.28
20-04-2025 07:305.130.22
20-04-2025 07:205.060.27
20-04-2025 07:104.910.25
20-04-2025 07:004.790.27
20-04-2025 06:504.660.27
20-04-2025 06:404.520.27
20-04-2025 06:304.390.28
20-04-2025 06:204.260.29
20-04-2025 06:104.120.29
20-04-2025 06:003.970.28
20-04-2025 05:503.850.29
20-04-2025 05:403.720.3
20-04-2025 05:303.570.26
20-04-2025 05:203.440.25
20-04-2025 05:103.330.26
20-04-2025 05:003.220.26
20-04-2025 04:503.120.25
20-04-2025 04:403.030.25
20-04-2025 04:302.920.22
20-04-2025 04:202.820.19
20-04-2025 04:102.770.19
20-04-2025 04:002.720.19
20-04-2025 03:502.640.15
20-04-2025 03:402.660.19
20-04-2025 03:302.60.15
20-04-2025 03:202.580.14
20-04-2025 03:102.560.11
20-04-2025 03:002.590.12
20-04-2025 02:502.630.13
20-04-2025 02:402.650.11
20-04-2025 02:302.730.14
20-04-2025 02:202.770.12
20-04-2025 02:102.820.11
20-04-2025 02:002.920.12
20-04-2025 01:503.010.12
20-04-2025 01:403.090.1
20-04-2025 01:303.160.07
20-04-2025 01:203.280.07
20-04-2025 01:103.40.08
20-04-2025 01:003.50.05
20-04-2025 00:503.620.04
20-04-2025 00:403.790.07
20-04-2025 00:303.930.07
20-04-2025 00:204.070.06
20-04-2025 00:104.20.04