Thornleigh Wind ForecastAustraliaNSWSydneyThornleigh1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast Bureau of MeteorologyWind Real-Time Thornleigh wind forecast issued today at 6:11 pm. Next forecast at approx. 6:11 am. Thornleigh Wind Statistics View MoreSeptember WindTerrey Hills (9km)2025AugustSeptemberStrongest – Average September11.2km/hStrongest 27 August, 202563km/h NWAverage August9.9km/hStrongest 17 January, 202572.4km/h SSWAverage 20259.8km/hClimate (2010–Present)Terrey Hills (9km)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 19 December, 202176km/h WNWAverage 2020–20259.6km/hWind RoseAnnual (5 Year Average)5 Year Average Annual5 Year Average September12.5%7.5%2.5%CalmFreshSeptember Wind RoseSeptember (5 Year Average)5 Year Average Annual5 Year Average September15%8.75%2.5%CalmFreshGet WillyWeather+ to remove ads