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 9:34 am. Next forecast at approx. 9:34 pm. Cape Portland Wind Statistics View MoreMarch WindSwan Island (12km)2026FebruaryMarchStrongest 5 March, 202661.2km/h WNWAverage March23.7km/hStrongest 19 February, 202670.2km/h WNWAverage February22.5km/hStrongest 10 January, 202685.3km/h WAverage 202622.8km/hClimate (2010–Present)Swan Island (12km)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 2 September, 2024124.2km/h NNWAverage 2021–202622.9km/hWind RoseAnnual (5 Year Average)5 Year Average Annual5 Year Average March17.5%10%2.5%CalmGaleMarch Wind RoseMarch (5 Year Average)5 Year Average Annual5 Year Average March15%8.75%2.5%CalmGaleGet WillyWeather+ to remove ads