South Island Wind ForecastAustraliaQLDMackaySouth 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 Island wind forecast issued today at 9:34 am. Next forecast at approx. 9:34 pm. South Island Wind Statistics View MoreJuly WindMiddle Percy Island (12km)2025JuneJulyStrongest 3 July, 202553.6km/h SAverage July15.7km/hStrongest 20 June, 202564.8km/h SSEAverage June20.4km/hStrongest 9 May, 202583.2km/h SSEAverage 202520.5km/hClimate (2010–Present)Middle Percy Island (12km)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 30 December, 2023114.8km/h SAverage 2020–202519.9km/hWind RoseAnnual (5 Year Average)5 Year Average Annual5 Year Average July20%11.25%2.5%CalmNear GaleJuly Wind RoseJuly (5 Year Average)5 Year Average Annual5 Year Average July25%13.75%2.5%CalmNear GaleGet WillyWeather+ to remove ads