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 12:33 am. Next forecast at approx. 12:33 pm. Portland Bay Marina Wind Statistics View MoreSeptember WindCape Nelson Lighthouse (11km)2025AugustSeptemberStrongest 7 September, 202588.9km/h NNEAverage September26.2km/hStrongest 29 August, 2025116.6km/h SSWAverage August20.9km/hStrongest 29 August, 2025116.6km/h SSWAverage 202521.2km/hClimate (2010–Present)Cape Nelson Lighthouse (11km)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 29 August, 2025116.6km/h SSWAverage 2020–202521.4km/hWind RoseAnnual (5 Year Average)5 Year Average Annual5 Year Average September15%8.75%2.5%CalmGaleSeptember Wind RoseSeptember (5 Year Average)5 Year Average Annual5 Year Average September17.5%10%2.5%CalmGaleGet WillyWeather+ to remove ads