Portsea Wind ForecastAustraliaVICMornington PeninsulaPortsea1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast Bureau of MeteorologyWind Real-Time Portsea wind forecast issued today at 5:33 am. Next forecast at approx. 5:33 pm. Portsea Wind Statistics View MoreDecember WindSouth Channel Island (39km)2025NovemberDecemberStrongest 1 December, 202566.6km/h SWAverage December27.8km/hStrongest 4 November, 202576km/h WNWAverage November29.2km/hStrongest 30 August, 2025103.7km/h SSWAverage 202527.4km/hClimate (2010–Present)South Channel Island (39km)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 29 October, 2021135.4km/h WSWAverage 2020–202527.6km/hWind RoseAnnual (5 Year Average)5 Year Average Annual5 Year Average December15%8.75%2.5%CalmGaleDecember Wind RoseDecember (5 Year Average)5 Year Average Annual5 Year Average December22.5%12.5%2.5%CalmGaleGet WillyWeather+ to remove ads