Grass Tree Hollow Campground Wind ForecastAustraliaWASouth WestGrass Tree Hollow Campground1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast Bureau of MeteorologyWind Real-Time Grass Tree Hollow Campground wind forecast issued today at 12:34 pm. Next forecast at approx. 12:34 am. Grass Tree Hollow Campground Wind Statistics View MoreDecember WindManjimup (36km)2025NovemberDecemberStrongest 15 December, 202550km/h NAverage December13.6km/hStrongest 23 November, 202557.2km/h SWAverage November13.9km/hStrongest 26 March, 2025105.5km/h NAverage 202513.2km/hClimate (2010–Present)Manjimup (36km)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 18 December, 2020105.5km/h ENEAverage 2020–202513.7km/hWind RoseAnnual (5 Year Average)5 Year Average Annual5 Year Average December12.5%7.5%2.5%CalmStormDecember Wind RoseDecember (5 Year Average)5 Year Average Annual5 Year Average December17.5%10%2.5%CalmStormGet WillyWeather+ to remove ads