The Old Mans Hat Swell ForecastAustraliaNSWSydneyThe Old Mans Hat1-Day3-Day5-Day Graph Plots Open in Graphs Swell Height and Direction Forecast NOAA WaveWatch III Swell Period Forecast NOAA WaveWatch IIIThe Old Mans Hat swell forecast issued today at 7:39 pm. Next forecast at approx. 7:39 pm.Get WillyWeather+ to remove ads