Castletown Wind ForecastUnited KingdomSWDorsetCastletown1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast Met OfficeWind Real-Time Castletown wind forecast issued today at 1:13 pm. Next forecast at approx. 1:13 am.Castletown Wind Statistics March WindIsle Of Portland (5km)2025FebruaryMarchStrongest 17 March, 202529.1mph EAverage March11.3mphStrongest 13 February, 202531.3mph EAverage February14.7mphStrongest 1 January, 202544.7mph SWAverage 202513.4mphClimate (2011–Present)Isle Of Portland (5km)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 18 February, 202262.6mph WSWAverage 2020–202513.6mphWind RoseAnnual (5 Year Average)5 Year Average Annual5 Year Average March20%11.25%2.5%CalmStrong GaleMarch Wind RoseMarch (5 Year Average)5 Year Average Annual5 Year Average March25%13.75%2.5%CalmStrong GaleGet WillyWeather+ to remove ads