Swan River - Heirisson Island Wind ForecastAustraliaWAPerthSwan River - Heirisson Island1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast Bureau of MeteorologyWind Real-Time Swan River - Heirisson Island wind forecast issued today at 8:35 pm. Next forecast at approx. 8:35 am. Swan River - Heirisson Island Wind Statistics View MoreApril WindPerth Metro (5km)2026MarchAprilStrongest 15 April, 202640.7km/h NNEAverage April7.2km/hStrongest 26 March, 202648.2km/h ESEAverage March10.1km/hStrongest 26 March, 202648.2km/h ESEAverage 202610.4km/hClimate (2010–Present)Perth Metro (5km)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 29 May, 202479.6km/h SSWAverage 2021–20269.1km/hWind RoseAnnual (5 Year Average)5 Year Average Annual5 Year Average April22.5%12.5%2.5%CalmModerateApril Wind RoseApril (5 Year Average)5 Year Average Annual5 Year Average April25%13.75%2.5%CalmModerateGet WillyWeather+ to remove ads