Secret Harbour Wind ForecastAustraliaWAPerthSecret Harbour1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast Bureau of Meteorology Swell Height and Direction Forecast NOAA WaveWatch IIIWind Real-Time Secret Harbour wind forecast issued today at 9:35 pm. Next forecast at approx. 9:35 am. Secret Harbour Wind Statistics View MoreAugust WindMandurah (13km)2025JulyAugustStrongest 2 August, 202585.3km/h NWAverage August28.3km/hStrongest 20 July, 202583.2km/h NWAverage July13.7km/hStrongest 2 August, 202585.3km/h NWAverage 202512.9km/hClimate (2010–Present)Mandurah (13km)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 2 August, 2022109.1km/h WAverage 2020–202513.7km/hWind RoseAnnual (5 Year Average)5 Year Average Annual5 Year Average August15%8.75%2.5%CalmNear GaleAugust Wind RoseAugust (5 Year Average)5 Year Average Annual5 Year Average August12.5%7.5%2.5%CalmNear GaleGet WillyWeather+ to remove ads