South Island Wind ForecastAustraliaWAPilbaraSouth Island1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast Bureau of MeteorologyWind Real-Time South Island wind forecast issued today at 4:33 pm. Next forecast at approx. 4:33 am. South Island Wind Statistics View MoreMay WindOnslow Airport (31km)2026AprilMayStrongest 8 May, 202659.4km/h EAverage May18.9km/hStrongest 21 April, 202651.8km/h SAverage April17.3km/hStrongest 27 March, 2026150.1km/h NEAverage 202621.7km/hClimate (2010–Present)Onslow Airport (31km)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 27 March, 2026150.1km/h NEAverage 2021–202619.8km/hWind RoseAnnual (5 Year Average)5 Year Average Annual5 Year Average May12.5%7.5%2.5%CalmNear GaleMay Wind RoseMay (5 Year Average)5 Year Average Annual5 Year Average May17.5%10%2.5%CalmNear GaleGet WillyWeather+ to remove ads