Portland Wind ForecastUnited KingdomSWDorsetPortland1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast Met OfficeWind Real-Time Portland wind forecast issued today at 7:13 pm. Next forecast at approx. 7:13 am. Wind Speed Wind GustPortland Wind Statistics August WindIsle Of Portland (5km)2026JulyAugustStrongest 5 August, 202622.4mph WNWAverage August11.2mphStrongest 2 July, 202626.8mph WAverage July9.5mphStrongest 9 January, 202644.7mph NWAverage 202614mphClimate (2021–2026)Isle Of Portland (5km)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 18 February, 202262.6mph WSWAverage 2021–202613.8mphWind RoseAnnual (5 Year Average)5 Year Average Annual5 Year Average August20%11.25%2.5%CalmGaleAugust Wind RoseAugust (5 Year Average)5 Year Average Annual5 Year Average August22.5%12.5%2.5%CalmGaleGet WillyWeather+ to remove ads