Box Head Swell ForecastAustraliaNSWSydneyBox Head1-Day3-Day5-Day Graph Plots Open in Graphs Swell Height and Direction Forecast NOAA WaveWatch III Swell Period Forecast NOAA WaveWatch IIIBox Head swell forecast issued today at 1:15 am. Next forecast at approx. 1:15 am.Get WillyWeather+ to remove ads