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.

St Mary's Sound


Live wave 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
Date/Time (GMT)21-07-2024 02:30
Wave Height (m)0.8
Max Wave Height (m)-
Tpeak (s)9.1
Tz (s)4.8
Peak Direction (degrees)302
Spread (degrees)41
Sea Temp (°C)14.6
Energy Period (s)-
Wave Power (kW/m)-