Cape Portland Wind ForecastAustraliaTASNorthernCape Portland1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast Bureau of Meteorology Swell Height and Direction Forecast NOAA WaveWatch IIIWind Real-Time Cape Portland wind forecast issued today at 9:18 am. Next forecast at approx. 9:18 pm. Wind Speed Wind Gust Cape Portland Wind Statistics View MoreAugust WindSwan Island (12km)2026JulyAugustStrongest 3 August, 202650km/h NWAverage August16.7km/hStrongest 13 July, 2026109.1km/h WNWAverage July24km/hStrongest 13 July, 2026109.1km/h WNWAverage 202620.7km/hClimate (2021–2026)Swan Island (12km)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 2 September, 2024124.2km/h NNWAverage 2021–202622.7km/hWind RoseAnnual (5 Year Average)5 Year Average Annual5 Year Average August17.5%10%2.5%CalmStrong GaleAugust Wind RoseAugust (5 Year Average)5 Year Average Annual5 Year Average August20%11.25%2.5%CalmStrong GaleGet WillyWeather+ to remove ads