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
13-12-2025 07:202.98-0.08
 Next HWNext LW
12:00, 6.12 18:34, 2.54
Date Highest 2025 Date Lowest 2025
05-11 8.38m 30-03 -0.05m
Time (GMT)ElevationResidual
12-11-2024 00:005.38-0.14
11-11-2024 23:505.22-0.15
11-11-2024 23:405.04-0.18
11-11-2024 23:304.86-0.19
11-11-2024 23:204.72-0.16
11-11-2024 23:104.53-0.17
11-11-2024 23:004.33-0.19
11-11-2024 22:504.16-0.18
11-11-2024 22:403.97-0.19
11-11-2024 22:303.77-0.21
11-11-2024 22:203.62-0.17
11-11-2024 22:103.44-0.18
11-11-2024 22:003.29-0.16
11-11-2024 21:503.11-0.16
11-11-2024 21:402.95-0.17
11-11-2024 21:302.76-0.2
11-11-2024 21:202.62-0.2
11-11-2024 21:102.43-0.24
11-11-2024 21:002.35-0.21
11-11-2024 20:502.24-0.19
11-11-2024 20:402.11-0.23
11-11-2024 20:302.05-0.2
11-11-2024 20:201.99-0.18
11-11-2024 20:101.95-0.17
11-11-2024 20:001.89-0.18
11-11-2024 19:501.84-0.2
11-11-2024 19:401.84-0.18
11-11-2024 19:301.82-0.2
11-11-2024 19:201.84-0.2
11-11-2024 19:101.9-0.16
11-11-2024 19:001.97-0.14
11-11-2024 18:502.01-0.16
11-11-2024 18:402.08-0.15
11-11-2024 18:302.15-0.16
11-11-2024 18:202.26-0.15
11-11-2024 18:102.38-0.13
11-11-2024 18:002.53-0.09
11-11-2024 17:502.63-0.11
11-11-2024 17:402.75-0.12
11-11-2024 17:302.92-0.09
11-11-2024 17:203.08-0.08
11-11-2024 17:103.23-0.08
11-11-2024 17:003.36-0.1
11-11-2024 16:503.53-0.1
11-11-2024 16:403.7-0.09
11-11-2024 16:303.87-0.09
11-11-2024 16:204.04-0.08
11-11-2024 16:104.23-0.06
11-11-2024 16:004.37-0.1
11-11-2024 15:504.52-0.12
11-11-2024 15:404.71-0.09
11-11-2024 15:304.84-0.13
11-11-2024 15:205.04-0.09
11-11-2024 15:105.18-0.09
11-11-2024 15:005.31-0.11
11-11-2024 14:505.44-0.12
11-11-2024 14:405.62-0.07
11-11-2024 14:305.73-0.08
11-11-2024 14:205.83-0.1
11-11-2024 14:105.93-0.09
11-11-2024 14:006.02-0.09
11-11-2024 13:506.06-0.12
11-11-2024 13:406.16-0.08
11-11-2024 13:306.17-0.12
11-11-2024 13:206.24-0.08
11-11-2024 13:106.21-0.13
11-11-2024 13:006.22-0.12
11-11-2024 12:506.25-0.07
11-11-2024 12:406.17-0.11
11-11-2024 12:306.12-0.12
11-11-2024 12:206.04-0.14
11-11-2024 12:105.97-0.14
11-11-2024 12:005.89-0.13
11-11-2024 11:505.8-0.12
11-11-2024 11:405.66-0.15
11-11-2024 11:305.58-0.1
11-11-2024 11:205.41-0.14
11-11-2024 11:105.25-0.16
11-11-2024 11:005.12-0.15
11-11-2024 10:504.98-0.14
11-11-2024 10:404.81-0.15
11-11-2024 10:304.6-0.2
11-11-2024 10:204.49-0.15
11-11-2024 10:104.3-0.17
11-11-2024 10:004.16-0.15
11-11-2024 09:503.96-0.18
11-11-2024 09:403.86-0.13
11-11-2024 09:303.68-0.15
11-11-2024 09:203.49-0.18
11-11-2024 09:103.33-0.19
11-11-2024 09:003.23-0.15
11-11-2024 08:503.1-0.15
11-11-2024 08:402.97-0.16
11-11-2024 08:302.8-0.21
11-11-2024 08:202.75-0.15
11-11-2024 08:102.64-0.17
11-11-2024 08:002.54-0.19
11-11-2024 07:502.47-0.19
11-11-2024 07:402.4-0.19
11-11-2024 07:302.35-0.2
11-11-2024 07:202.36-0.15
11-11-2024 07:102.3-0.19
11-11-2024 07:002.31-0.17
11-11-2024 06:502.3-0.19
11-11-2024 06:402.34-0.16
11-11-2024 06:302.36-0.16
11-11-2024 06:202.43-0.13
11-11-2024 06:102.45-0.15
11-11-2024 06:002.55-0.11
11-11-2024 05:502.57-0.15
11-11-2024 05:402.69-0.11
11-11-2024 05:302.78-0.11
11-11-2024 05:202.89-0.09
11-11-2024 05:102.98-0.09
11-11-2024 05:003.08-0.09
11-11-2024 04:503.2-0.08
11-11-2024 04:403.33-0.07
11-11-2024 04:303.4-0.12
11-11-2024 04:203.53-0.11
11-11-2024 04:103.67-0.09
11-11-2024 04:003.78-0.11
11-11-2024 03:503.94-0.09
11-11-2024 03:404.09-0.06
11-11-2024 03:304.18-0.1
11-11-2024 03:204.34-0.08
11-11-2024 03:104.42-0.13
11-11-2024 03:004.59-0.08
11-11-2024 02:504.73-0.07
11-11-2024 02:404.83-0.09
11-11-2024 02:304.91-0.13
11-11-2024 02:205.02-0.14
11-11-2024 02:105.11-0.16
11-11-2024 02:005.23-0.13
11-11-2024 01:505.36-0.09
11-11-2024 01:405.43-0.11
11-11-2024 01:305.51-0.11
11-11-2024 01:205.55-0.14
11-11-2024 01:105.58-0.15
11-11-2024 01:005.66-0.12
11-11-2024 00:505.68-0.14
11-11-2024 00:405.72-0.11
11-11-2024 00:305.7-0.14
11-11-2024 00:205.7-0.14
11-11-2024 00:105.69-0.13