Portland Bay Swell ForecastAustraliaVICWestern DistrictPortland Bay1-Day3-Day5-Day Graph Plots Open in Graphs Swell Height and Direction Forecast NOAA WaveWatch III Swell Period Forecast NOAA WaveWatch IIIPortland Bay swell forecast issued today at 6:43 am. Next forecast at approx. 6:43 am.Get an account to remove ads