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)21-01-2026 16:30
Latitude-
Longitude-
Wave Height (m)0.51
Max Wave Height (m)0.95
Tpeak (s)7.1
Tz (s)4.5
Peak Direction (degrees)-
Spread (degrees)-
Sea Temp (°C)-
Energy Period (s)-
Wave Power (kW/m)-

Latest Tide Data

Latest Tide data
Time (GMT)21-01-2026 17:20
Elevation6.28
Residual0.43
Next HW19:08, 7.19
Next LW01:22, 1.2
Highest Date21-01-2026
Highest Value7.75m
Lowest Date05-01-2026
Lowest Value0.71m

Latest Met Data

Latest Met data
Time (GMT)21-01-2026 17:10
Air Pressure (mb)968.1
Wind Speed (knots)8.6
Wind Speed (ms-1)4.4
Gust Speed (knots)15.6
Gust Speed (ms-1)8
Wind direction (°)170
Air Temperature (°C)9
Rainfall (mm)0
Erythemal Radiation (W/m2)-
UV Index-
Relative Humidity (%)92