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 today at 2:33 pm. Next forecast at approx. 2:33 am. Wind Speed Wind Gust Portland Harbour Wind Statistics View MoreJuly WindCape Nelson Lighthouse (11km)2026JuneJulyStrongest 28 July, 202698.3km/h WAverage July23.7km/hStrongest 3 June, 202687.1km/h WAverage June20.8km/hStrongest 28 July, 202698.3km/h WAverage 202620.9km/hClimate (2021–2026)Cape Nelson Lighthouse (11km)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 29 August, 2025116.6km/h SSWAverage 2021–202621.3km/hWind RoseAnnual (5 Year Average)5 Year Average Annual5 Year Average July15%8.75%2.5%CalmGaleJuly Wind RoseJuly (5 Year Average)5 Year Average Annual5 Year Average July30%16.25%2.5%CalmGaleGet WillyWeather+ to remove ads