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 4:34 pm. Next forecast at approx. 4:34 am. South Island Wind Statistics View MoreJanuary WindOnslow Airport (31km)2026DecemberJanuaryStrongest 7 January, 202663km/h SEAverage January22.9km/hStrongest 4 December, 202557.2km/h WAverage December23.6km/hStrongest 7 January, 202663km/h SEAverage 202622.9km/hClimate (2010–Present)Onslow Airport (31km)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 20 January, 2025100.1km/h NEAverage 2021–202619.7km/hWind RoseAnnual (5 Year Average)5 Year Average Annual5 Year Average January12.5%7.5%2.5%CalmGaleJanuary Wind RoseJanuary (5 Year Average)5 Year Average Annual5 Year Average January17.5%10%2.5%CalmGaleGet WillyWeather+ to remove ads