St Mary's Wind ForecastUnited KingdomSWCornwallSt Mary's1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast Met OfficeWind Real-Time St Mary's wind forecast issued today at 12:12 pm. Next forecast at approx. 12:12 am.St Mary's Wind Statistics December WindScilly St Marys (1km)2025NovemberDecemberStrongest 9 December, 202551.4mph SSWAverage December20.3mphStrongest 11 November, 202540.3mph SAverage November17.1mphStrongest 26 January, 202560.4mph SSEAverage 202513.6mphClimate (2011–Present)Scilly St Marys (1km)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 26 January, 202560.4mph SSEAverage 2020–202513.9mphWind RoseAnnual (5 Year Average)5 Year Average Annual5 Year Average December15%8.75%2.5%CalmStormDecember Wind RoseDecember (5 Year Average)5 Year Average Annual5 Year Average December25%13.75%2.5%CalmStormGet WillyWeather+ to remove ads