Southern Harbour Wind ForecastAustraliaWAPerthSouthern Harbour1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast Bureau of MeteorologyWind Real-Time Southern Harbour wind forecast issued today at 4:13 pm. Next forecast at approx. 4:13 am. Southern Harbour Wind Statistics View MoreJuly WindGarden Island (12km)2025JuneJulyStrongest 6 July, 202585.3km/h NWAverage July22.9km/hStrongest 21 June, 202583.2km/h SSWAverage June20.7km/hStrongest 6 July, 202585.3km/h NWAverage 202522.7km/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