South West Twin Island Wind ForecastAustraliaWAPilbaraSouth West Twin Island1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast Bureau of Meteorology Swell Height and Direction Forecast NOAA WaveWatch IIIWind Real-Time South West Twin Island wind forecast issued today at 9:34 pm. Next forecast at approx. 9:34 am. South West Twin Island Wind Statistics View MoreDecember WindOnslow Airport (19km)2025NovemberDecemberStrongest 4 December, 202557.2km/h WAverage December24.8km/hStrongest 22 November, 202559.4km/h WNWAverage November24.1km/hStrongest 20 January, 2025100.1km/h NEAverage 202519.6km/hClimate (2010–Present)Onslow Airport (19km)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 20 January, 2025100.1km/h NEAverage 2020–202519.7km/hWind RoseAnnual (5 Year Average)5 Year Average Annual5 Year Average December12.5%7.5%2.5%CalmGaleDecember Wind RoseDecember (5 Year Average)5 Year Average Annual5 Year Average December20%11.25%2.5%CalmGaleGet WillyWeather+ to remove ads