Portland Wind ForecastUnited KingdomSWDorsetPortland1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast Met OfficeWind Real-Time Portland wind forecast issued today at 7:10 am. Next forecast at approx. 7:10 pm.Portland Wind Statistics July WindIsle Of Portland (5km)2025JuneJulyStrongest 2 July, 202517.9mph NWAverage July8.4mphStrongest 3 June, 202526.8mph SSWAverage June12.4mphStrongest 1 January, 202544.7mph SWAverage 202512.4mphClimate (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 July20%11.25%2.5%CalmNear GaleJuly Wind RoseJuly (5 Year Average)5 Year Average Annual5 Year Average July30%16.25%2.5%CalmNear GaleGet WillyWeather+ to remove ads