Postans Wind ForecastAustraliaWAPerthPostans1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast Bureau of MeteorologyWind Real-Time Postans wind forecast issued today at 1:34 pm. Next forecast at approx. 1:34 am. Postans Wind Statistics View MoreJuly WindGarden Island (12km)2025JuneJulyStrongest – Average July17.6km/hStrongest 21 June, 202583.2km/h SSWAverage June20.7km/hStrongest 21 June, 202583.2km/h SSWAverage 202522.6km/hClimate (2010–Present)Garden Island (12km)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 13 September, 2023113km/h NNWAverage 2020–202522.8km/hWind RoseAnnual (5 Year Average)5 Year Average Annual5 Year Average July15%8.75%2.5%CalmGaleJuly Wind RoseJuly (5 Year Average)5 Year Average Annual5 Year Average July15%8.75%2.5%CalmGaleGet WillyWeather+ to remove ads