Portland Wind ForecastUnited KingdomSWDorsetPortland1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast Met OfficeWind Real-Time Portland wind forecast issued today at 11:02 pm. Next forecast at approx. 11:02 am.Portland Wind Statistics September WindIsle Of Portland (3.1 miles)2020AugustSeptemberStrongest 3 September, 202026.8mph WSWAverage September11.3mphStrongest 26 August, 202040.3mph WAverage August12.1mphStrongest 9 February, 202051.4mph SWAverage 202013.3mphClimate (2011–Present)Isle Of Portland (3.1 miles)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 29 December, 201755.9mph WAverage 2011–Present13.7mphWind RoseAnnual (5 Year Average)5 Year Average Annual5 Year Average September20%11.25%2.5%CalmGaleSeptember Wind RoseSeptember (5 Year Average)5 Year Average Annual5 Year Average September17.5%10%2.5%CalmGaleGet an account to remove ads