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)25-01-2026 00:00
Latitude-
Longitude-
Wave Height (m)1.25
Max Wave Height (m)2.55
Tpeak (s)7.5
Tz (s)3.8
Peak Direction (degrees)-
Spread (degrees)-
Sea Temp (°C)-
Energy Period (s)-
Wave Power (kW/m)-

Latest Tide Data

Latest Tide data
Time (GMT)25-01-2026 00:50
Elevation3.64
Residual0.5
Next HW09:26, 6.92
Next LW03:12, 1.64
Highest Date23-01-2026
Highest Value7.87m
Lowest Date05-01-2026
Lowest Value0.71m

Latest Met Data

Latest Met data
Time (GMT)25-01-2026 00:50
Air Pressure (mb)977.5
Wind Speed (knots)6.8
Wind Speed (ms-1)3.5
Gust Speed (knots)12.4
Gust Speed (ms-1)6.4
Wind direction (°)150
Air Temperature (°C)5.1
Rainfall (mm)0
Erythemal Radiation (W/m2)-
UV Index-
Relative Humidity (%)83.1