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

  

Live water level data (OD) Data (GMT) (updated every 5 seconds)

This one-second stream of data to the website is experimental and is being developed in conjunction with Fugro GB Limited

Latest Wave Data

Latest Wave Data
Time (GMT)10-03-2026 23:30
Latitude-
Longitude-
Wave Height (m)0.84
Max Wave Height (m)1.05
Tpeak (s)7.1
Tz (s)4
Peak Direction (degrees)-
Spread (degrees)-
Sea Temp (°C)-
Energy Period (s)-
Wave Power (kW/m)-

Latest Tide Data

Latest Tide data
Time (GMT)11-03-2026 00:20
Elevation4.3
Residual-0.06
Next HW09:49, 5.67
Next LW03:38, 2.55
Highest Date03-02-2026
Highest Value8.22m
Lowest Date20-02-2026
Lowest Value0.5m

Latest Met Data

Latest Met data
Time (GMT)11-03-2026 00:10
Air Pressure (mb)997.4
Wind Speed (knots)9.1
Wind Speed (ms-1)4.7
Gust Speed (knots)20.6
Gust Speed (ms-1)10.6
Wind direction (°)270
Air Temperature (°C)10.4
Rainfall (mm)0
Erythemal Radiation (W/m2)-
UV Index-
Relative Humidity (%)99