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
10-09-2026 16:107.62-0.01
 Next HWNext LW
16:51, 7.86 23:17, 0.67
Date Highest 2026 Date Lowest 2026
03-02 8.22m 19-04 0.29m
Time (GMT)ElevationResidual
08-07-2025 00:003.81-0.03
07-07-2025 23:503.64-0.05
07-07-2025 23:403.48-0.06
07-07-2025 23:303.35-0.04
07-07-2025 23:203.17-0.07
07-07-2025 23:103.07-0.04
07-07-2025 23:002.97-0.01
07-07-2025 22:502.82-0.05
07-07-2025 22:402.7-0.05
07-07-2025 22:302.61-0.04
07-07-2025 22:202.51-0.06
07-07-2025 22:102.43-0.06
07-07-2025 22:002.38-0.05
07-07-2025 21:502.3-0.07
07-07-2025 21:402.25-0.09
07-07-2025 21:302.25-0.07
07-07-2025 21:202.22-0.08
07-07-2025 21:102.22-0.09
07-07-2025 21:002.27-0.05
07-07-2025 20:502.29-0.06
07-07-2025 20:402.34-0.05
07-07-2025 20:302.38-0.06
07-07-2025 20:202.44-0.07
07-07-2025 20:102.52-0.07
07-07-2025 20:002.61-0.07
07-07-2025 19:502.7-0.08
07-07-2025 19:402.81-0.08
07-07-2025 19:302.93-0.07
07-07-2025 19:203.07-0.06
07-07-2025 19:103.21-0.05
07-07-2025 19:003.33-0.07
07-07-2025 18:503.46-0.07
07-07-2025 18:403.58-0.1
07-07-2025 18:303.73-0.11
07-07-2025 18:203.9-0.09
07-07-2025 18:104.03-0.11
07-07-2025 18:004.19-0.11
07-07-2025 17:504.34-0.12
07-07-2025 17:404.49-0.12
07-07-2025 17:304.64-0.13
07-07-2025 17:204.81-0.11
07-07-2025 17:104.93-0.13
07-07-2025 17:005.08-0.12
07-07-2025 16:505.19-0.14
07-07-2025 16:405.35-0.1
07-07-2025 16:305.47-0.1
07-07-2025 16:205.59-0.09
07-07-2025 16:105.67-0.1
07-07-2025 16:005.78-0.07
07-07-2025 15:505.88-0.04
07-07-2025 15:405.92-0.06
07-07-2025 15:305.98-0.04
07-07-2025 15:206.03-0.03
07-07-2025 15:106.04-0.03
07-07-2025 15:006.06-0.02
07-07-2025 14:506.04-0.02
07-07-2025 14:406.05-0
07-07-2025 14:305.99-0.02
07-07-2025 14:205.970.01
07-07-2025 14:105.88-0.02
07-07-2025 14:005.82-0
07-07-2025 13:505.71-0.02
07-07-2025 13:405.6-0.03
07-07-2025 13:305.49-0.04
07-07-2025 13:205.33-0.08
07-07-2025 13:105.25-0.04
07-07-2025 13:005.09-0.07
07-07-2025 12:504.92-0.09
07-07-2025 12:404.79-0.07
07-07-2025 12:304.65-0.07
07-07-2025 12:204.52-0.04
07-07-2025 12:104.34-0.07
07-07-2025 12:004.19-0.06
07-07-2025 11:504.01-0.09
07-07-2025 11:403.88-0.07
07-07-2025 11:303.7-0.09
07-07-2025 11:203.56-0.08
07-07-2025 11:103.39-0.11
07-07-2025 11:003.25-0.12
07-07-2025 10:503.14-0.09
07-07-2025 10:402.99-0.11
07-07-2025 10:302.89-0.1
07-07-2025 10:202.76-0.12
07-07-2025 10:102.68-0.1
07-07-2025 10:002.61-0.09
07-07-2025 09:502.57-0.05
07-07-2025 09:402.47-0.09
07-07-2025 09:302.38-0.13
07-07-2025 09:202.34-0.13
07-07-2025 09:102.33-0.11
07-07-2025 09:002.31-0.11
07-07-2025 08:502.29-0.13
07-07-2025 08:402.31-0.12
07-07-2025 08:302.34-0.11
07-07-2025 08:202.37-0.11
07-07-2025 08:102.44-0.08
07-07-2025 08:002.51-0.07
07-07-2025 07:502.57-0.06
07-07-2025 07:402.58-0.13
07-07-2025 07:302.67-0.12
07-07-2025 07:202.77-0.12
07-07-2025 07:102.88-0.1
07-07-2025 07:003-0.09
07-07-2025 06:503.09-0.11
07-07-2025 06:403.2-0.12
07-07-2025 06:303.33-0.12
07-07-2025 06:203.42-0.16
07-07-2025 06:103.59-0.11
07-07-2025 06:003.69-0.16
07-07-2025 05:503.82-0.16
07-07-2025 05:404.01-0.12
07-07-2025 05:304.08-0.19
07-07-2025 05:204.21-0.2
07-07-2025 05:104.41-0.14
07-07-2025 05:004.49-0.19
07-07-2025 04:504.6-0.21
07-07-2025 04:404.8-0.14
07-07-2025 04:304.93-0.14
07-07-2025 04:205.05-0.14
07-07-2025 04:105.2-0.1
07-07-2025 04:005.29-0.11
07-07-2025 03:505.4-0.1
07-07-2025 03:405.46-0.13
07-07-2025 03:305.6-0.06
07-07-2025 03:205.64-0.08
07-07-2025 03:105.7-0.08
07-07-2025 03:005.74-0.07
07-07-2025 02:505.78-0.07
07-07-2025 02:405.85-0.01
07-07-2025 02:305.86-0.02
07-07-2025 02:205.82-0.05
07-07-2025 02:105.85-0.01
07-07-2025 02:005.81-0.01
07-07-2025 01:505.75-0.03
07-07-2025 01:405.7-0.02
07-07-2025 01:305.61-0.05
07-07-2025 01:205.56-0.03
07-07-2025 01:105.46-0.05
07-07-2025 01:005.39-0.02
07-07-2025 00:505.29-0.01
07-07-2025 00:405.16-0.04
07-07-2025 00:305.03-0.04
07-07-2025 00:204.86-0.09
07-07-2025 00:104.79-0.03