Ngumuy Beach Swell ForecastAustraliaNTArnhem LandNgumuy Beach1-Day3-Day5-Day Graph Plots Open in Graphs Swell Height and Direction Forecast NOAA WaveWatch III Swell Period Forecast NOAA WaveWatch IIINgumuy Beach swell forecast issued today at 11:21 am. Next forecast at approx. 11:21 am. Wave Height Sea TemperatureGet WillyWeather+ to remove ads