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 1:34 pm. Next forecast at approx. 1:34 am. Secret Harbour Wind Statistics View MoreSeptember WindMandurah (13km)2025AugustSeptemberStrongest 14 September, 202581.4km/h NWAverage September13.9km/hStrongest 2 August, 202585.3km/h NWAverage August13km/hStrongest 2 August, 202585.3km/h NWAverage 202512.8km/hClimate (2010–Present)Mandurah (13km)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 2 August, 2022109.1km/h WAverage 2020–202513.6km/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 September15%8.75%2.5%CalmGaleGet WillyWeather+ to remove ads