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 9:37 pm. Next forecast at approx. 9:37 am. Secret Harbour Wind Statistics View MoreDecember WindMandurah (13km)2025NovemberDecemberStrongest 15 December, 202551.8km/h NEAverage December13.7km/hStrongest 4 November, 202553.6km/h ESEAverage November15.2km/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 2020–202513.5km/hWind RoseAnnual (5 Year Average)5 Year Average Annual5 Year Average December15%8.75%2.5%CalmFreshDecember Wind RoseDecember (5 Year Average)5 Year Average Annual5 Year Average December20%11.25%2.5%CalmFreshGet WillyWeather+ to remove ads