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 10:33 pm. Next forecast at approx. 10:33 am. Grass Tree Hollow Campground Wind Statistics View MoreSeptember WindManjimup (36km)2025AugustSeptemberStrongest 2 September, 2025105.5km/h WNWAverage September13.5km/hStrongest 6 August, 2025105.5km/h NAverage August13.9km/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 11 December, 2020105.5km/h NEAverage 2020–202513.7km/hWind RoseAnnual (5 Year Average)5 Year Average Annual5 Year Average September12.5%7.5%2.5%CalmViolentSeptember Wind RoseSeptember (5 Year Average)5 Year Average Annual5 Year Average September15%8.75%2.5%CalmViolentGet WillyWeather+ to remove ads