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
12-09-2026 07:306.58-0.05
 Next HWNext LW
18:07, 8.14 12:06, 0.57
Date Highest 2026 Date Lowest 2026
03-02 8.22m 19-04 0.29m
Time (GMT)ElevationResidual
12-07-2025 00:001.25-0.06
11-07-2025 23:501.26-0.07
11-07-2025 23:401.31-0.08
11-07-2025 23:301.39-0.07
11-07-2025 23:201.47-0.09
11-07-2025 23:101.57-0.09
11-07-2025 23:001.7-0.09
11-07-2025 22:501.82-0.1
11-07-2025 22:401.97-0.11
11-07-2025 22:302.13-0.12
11-07-2025 22:202.31-0.13
11-07-2025 22:102.51-0.12
11-07-2025 22:002.7-0.14
11-07-2025 21:502.91-0.14
11-07-2025 21:403.13-0.14
11-07-2025 21:303.35-0.15
11-07-2025 21:203.58-0.15
11-07-2025 21:103.81-0.15
11-07-2025 21:004.03-0.16
11-07-2025 20:504.28-0.16
11-07-2025 20:404.52-0.16
11-07-2025 20:304.76-0.14
11-07-2025 20:205-0.14
11-07-2025 20:105.22-0.14
11-07-2025 20:005.45-0.14
11-07-2025 19:505.67-0.13
11-07-2025 19:405.89-0.11
11-07-2025 19:306.08-0.11
11-07-2025 19:206.26-0.1
11-07-2025 19:106.42-0.11
11-07-2025 19:006.57-0.11
11-07-2025 18:506.72-0.09
11-07-2025 18:406.85-0.07
11-07-2025 18:306.94-0.07
11-07-2025 18:207.02-0.07
11-07-2025 18:107.08-0.06
11-07-2025 18:007.11-0.05
11-07-2025 17:507.13-0.05
11-07-2025 17:407.1-0.06
11-07-2025 17:307.07-0.05
11-07-2025 17:207.02-0.04
11-07-2025 17:106.95-0.02
11-07-2025 17:006.83-0.04
11-07-2025 16:506.71-0.03
11-07-2025 16:406.57-0.03
11-07-2025 16:306.4-0.03
11-07-2025 16:206.22-0.04
11-07-2025 16:106.04-0.02
11-07-2025 16:005.82-0.04
11-07-2025 15:505.61-0.03
11-07-2025 15:405.38-0.03
11-07-2025 15:305.15-0.03
11-07-2025 15:204.93-0.01
11-07-2025 15:104.69-0.01
11-07-2025 15:004.460.01
11-07-2025 14:504.21-0.01
11-07-2025 14:403.96-0
11-07-2025 14:303.72-0.01
11-07-2025 14:203.49-0.01
11-07-2025 14:103.24-0.02
11-07-2025 14:003.01-0.03
11-07-2025 13:502.77-0.06
11-07-2025 13:402.59-0.04
11-07-2025 13:302.39-0.05
11-07-2025 13:202.21-0.05
11-07-2025 13:102.06-0.04
11-07-2025 13:001.91-0.05
11-07-2025 12:501.79-0.04
11-07-2025 12:401.67-0.05
11-07-2025 12:301.57-0.05
11-07-2025 12:201.5-0.05
11-07-2025 12:101.44-0.05
11-07-2025 12:001.4-0.06
11-07-2025 11:501.4-0.05
11-07-2025 11:401.39-0.07
11-07-2025 11:301.4-0.09
11-07-2025 11:201.45-0.09
11-07-2025 11:101.49-0.1
11-07-2025 11:001.56-0.12
11-07-2025 10:501.67-0.11
11-07-2025 10:401.78-0.12
11-07-2025 10:301.91-0.12
11-07-2025 10:202.04-0.13
11-07-2025 10:102.19-0.14
11-07-2025 10:002.35-0.14
11-07-2025 09:502.54-0.13
11-07-2025 09:402.69-0.17
11-07-2025 09:302.89-0.17
11-07-2025 09:203.09-0.17
11-07-2025 09:103.29-0.17
11-07-2025 09:003.51-0.18
11-07-2025 08:503.71-0.19
11-07-2025 08:403.94-0.18
11-07-2025 08:304.16-0.18
11-07-2025 08:204.38-0.17
11-07-2025 08:104.6-0.17
11-07-2025 08:004.82-0.17
11-07-2025 07:505.04-0.16
11-07-2025 07:405.23-0.16
11-07-2025 07:305.43-0.16
11-07-2025 07:205.62-0.15
11-07-2025 07:105.81-0.14
11-07-2025 07:005.97-0.14
11-07-2025 06:506.13-0.14
11-07-2025 06:406.26-0.13
11-07-2025 06:306.4-0.12
11-07-2025 06:206.5-0.11
11-07-2025 06:106.59-0.1
11-07-2025 06:006.67-0.09
11-07-2025 05:506.73-0.07
11-07-2025 05:406.75-0.08
11-07-2025 05:306.76-0.07
11-07-2025 05:206.74-0.07
11-07-2025 05:106.72-0.05
11-07-2025 05:006.66-0.05
11-07-2025 04:506.59-0.04
11-07-2025 04:406.48-0.05
11-07-2025 04:306.36-0.05
11-07-2025 04:206.22-0.06
11-07-2025 04:106.08-0.04
11-07-2025 04:005.9-0.05
11-07-2025 03:505.73-0.04
11-07-2025 03:405.54-0.04
11-07-2025 03:305.34-0.03
11-07-2025 03:205.13-0.03
11-07-2025 03:104.91-0.03
11-07-2025 03:004.7-0.02
11-07-2025 02:504.47-0.02
11-07-2025 02:404.25-0.01
11-07-2025 02:304.03-0.01
11-07-2025 02:203.79-0.02
11-07-2025 02:103.57-0.01
11-07-2025 02:003.360.01
11-07-2025 01:503.14-0.01
11-07-2025 01:402.93-0.01
11-07-2025 01:302.71-0.03
11-07-2025 01:202.54-0.02
11-07-2025 01:102.35-0.03
11-07-2025 01:002.2-0.02
11-07-2025 00:502.06-0
11-07-2025 00:401.91-0.02
11-07-2025 00:301.79-0.02
11-07-2025 00:201.71-0.01
11-07-2025 00:101.62-0.01