St John Wind ForecastUnited KingdomSWCornwallSt John1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast Met OfficeWind Real-Time St John wind forecast issued today at 7:09 am. Next forecast at approx. 7:09 pm.St John Wind Statistics September WindMount Batten (8km)2025AugustSeptemberStrongest 14 September, 202529.1mph SSWAverage September10.2mphStrongest 30 August, 202529.1mph SSWAverage August7.6mphStrongest 24 January, 202547mph SAverage 20258mphClimate (2011–Present)Mount Batten (8km)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 18 February, 202251.4mph WSWAverage 2020–20259.1mphWind RoseAnnual (5 Year Average)5 Year Average Annual5 Year Average September17.5%10%2.5%CalmStrongSeptember Wind RoseSeptember (5 Year Average)5 Year Average Annual5 Year Average September17.5%10%2.5%CalmStrongGet WillyWeather+ to remove ads