O'Hara Island Swell ForecastAustraliaNSWIllawarraO'Hara Island1-Day3-Day5-Day Graph Plots Open in Graphs Swell Height and Direction Forecast NOAA WaveWatch III Swell Period Forecast NOAA WaveWatch IIIO'Hara Island swell forecast issued today at 1:23 am. Next forecast at approx. 1:23 am.Get WillyWeather+ to remove ads