Portland Bay Marina Wind ForecastAustraliaVICWestern DistrictPortland Bay Marina1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast Bureau of MeteorologyWind Real-Time Portland Bay Marina wind forecast issued today at 10:12 am. Next forecast at approx. 10:12 pm. Portland Bay Marina Wind Statistics View MoreAugust WindCape Nelson Lighthouse (11km)2025JulyAugustStrongest 27 August, 202579.6km/h WAverage August19.6km/hStrongest 22 July, 202590.7km/h NWAverage July21.6km/hStrongest 24 June, 202594.3km/h WAverage 202520.6km/hClimate (2010–Present)Cape Nelson Lighthouse (11km)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 14 May, 2021105.5km/h WSWAverage 2020–202521.3km/hWind RoseAnnual (5 Year Average)5 Year Average Annual5 Year Average August15%8.75%2.5%CalmGaleAugust Wind RoseAugust (5 Year Average)5 Year Average Annual5 Year Average August25%13.75%2.5%CalmGaleGet WillyWeather+ to remove ads