Grassy Harbour Wind ForecastAustraliaTASNorth WesternGrassy Harbour1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast Bureau of MeteorologyWind Real-Time Grassy Harbour wind forecast issued today at 6:35 pm. Next forecast at approx. 6:35 am. Grassy Harbour Wind Statistics View MoreAugust WindKing Island Airport (25km)2025JulyAugustStrongest – Average August5.8km/hStrongest 22 July, 202596.1km/h NAverage July22km/hStrongest 24 May, 2025109.1km/h NWAverage 202520.7km/hClimate (2010–Present)King Island Airport (25km)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 1 September, 2024157.3km/h WNWAverage 2020–202522.7km/hWind RoseAnnual (5 Year Average)5 Year Average Annual5 Year Average August12.5%7.5%2.5%CalmStrong GaleAugust Wind RoseAugust (5 Year Average)5 Year Average Annual5 Year Average August15%8.75%2.5%CalmStrong GaleGet WillyWeather+ to remove ads