Coal Cliff Harbour Swell ForecastAustraliaNSWIllawarraCoal Cliff Harbour1-Day3-Day5-Day Graph Plots Open in Graphs Swell Height and Direction Forecast NOAA WaveWatch III Swell Period Forecast NOAA WaveWatch IIICoal Cliff Harbour swell forecast issued today at 6:33 am. Next forecast at approx. 6:33 am.Get an account to remove ads