Cape Van Diemen Swell ForecastAustraliaNTDarwinCape Van Diemen1-Day3-Day5-Day Graph Plots Open in Graphs Swell Height and Direction Forecast NOAA WaveWatch III Swell Period Forecast NOAA WaveWatch IIICape Van Diemen swell forecast issued yesterday at 11:42 pm. Next forecast at approx. 11:42 pm.Get WillyWeather+ to remove ads