Three Hummock Island Swell ForecastAustraliaTASNorth WesternThree Hummock Island1-Day3-Day5-Day Graph Plots Open in Graphs Swell Height and Direction Forecast NOAA WaveWatch III Swell Period Forecast NOAA WaveWatch IIIThree Hummock Island swell forecast issued yesterday at 11:55 pm. Next forecast at approx. 11:55 pm. Wave Height Sea TemperatureGet WillyWeather+ to remove ads