St Mary's Sound wave buoy monthly averages for 2026
Monthly averages from the St Mary's Sound wave buoy for 2026, including available wave height, period, direction, wind and sea temperature data.
Average Wave Height
Available for 9,044 of 9,045 observations
Average Wave period
Available for 9,044 of 9,045 observations
Average Wave Direction
Average Water temperature
Chart showing grouped wave observations for St Mary's Sound. Use the table on this page for a text version of the same measurements. Click a month to show daily observations for that month.
Sorry, there is no wave data for Jan 2026
About St Mary's Sound wave buoy
St Mary's Sound station lies between the islands of St Mary's and St Agnes in the Isles of Scilly. The National Network first deployed its Datawell Directional WaveRider in May 2014 to measure the exposed nearshore wave climate around the archipelago. The station reports wave height, period and direction together with sea temperature.