Porpoise Bay Wind ForecastAustraliaWAPerthPorpoise Bay1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast Bureau of Meteorology Swell Height and Direction Forecast NOAA WaveWatch IIIWind Real-Time Porpoise Bay wind forecast issued today at 4:34 am. Next forecast at approx. 4:34 pm. Porpoise Bay Wind Statistics View MoreAugust WindRottnest Island (3km)2025JulyAugustStrongest 2 August, 202587.1km/h NNWAverage August46.1km/hStrongest 20 July, 2025101.9km/h SAverage July29.2km/hStrongest 20 July, 2025101.9km/h SAverage 202527.3km/hClimate (2010–Present)Rottnest Island (3km)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 2 August, 2023127.8km/h SSWAverage 2020–202526.7km/hWind RoseAnnual (5 Year Average)5 Year Average Annual5 Year Average August22.5%12.5%2.5%CalmStrong GaleAugust Wind RoseAugust (5 Year Average)5 Year Average Annual5 Year Average August12.5%7.5%2.5%CalmStrong GaleGet WillyWeather+ to remove ads