Postans Wind ForecastAustraliaWAPerthPostans1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast Bureau of MeteorologyWind Real-Time Postans wind forecast issued today at 4:33 pm. Next forecast at approx. 4:33 am. Wind Speed Wind Gust Postans Wind Statistics View MoreAugust WindGarden Island (12km)2026JulyAugustStrongest 8 August, 202694.3km/h SSWAverage August19.6km/hStrongest 16 July, 202668.4km/h NAverage July16.7km/hStrongest 31 May, 2026105.5km/h WNWAverage 202622.1km/hClimate (2021–2026)Garden Island (12km)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 13 September, 2023113km/h NNWAverage 2021–202623km/hWind RoseAnnual (5 Year Average)5 Year Average Annual5 Year Average August15%8.75%2.5%CalmStrong GaleAugust Wind RoseAugust (5 Year Average)5 Year Average Annual5 Year Average August12.5%7.5%2.5%CalmStrong GaleGet WillyWeather+ to remove ads