Portland Harbour Wind ForecastAustraliaVICWestern DistrictPortland Harbour1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast Bureau of Meteorology Swell Height and Direction Forecast NOAA WaveWatch IIIWind Real-Time Portland Harbour wind forecast issued yesterday at 11:37 pm. Next forecast at approx. 11:37 am. Portland Harbour Wind Statistics View MoreMay WindCape Nelson Lighthouse (11km)2026AprilMayStrongest – Average May25.2km/hStrongest 10 April, 202696.1km/h WAverage April20.1km/hStrongest 10 April, 202696.1km/h WAverage 202620.8km/hClimate (2010–Present)Cape Nelson Lighthouse (11km)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 29 August, 2025116.6km/h SSWAverage 2021–202621.4km/hWind RoseAnnual (5 Year Average)5 Year Average Annual5 Year Average May15%8.75%2.5%CalmStrong GaleMay Wind RoseMay (5 Year Average)5 Year Average Annual5 Year Average May15%8.75%2.5%CalmStrong GaleGet WillyWeather+ to remove ads