Gilbert Island Swell ForecastAustraliaNTKatherineGilbert Island1-Day3-Day5-Day Graph Plots Open in Graphs Swell Height and Direction Forecast NOAA WaveWatch III Swell Period Forecast NOAA WaveWatch IIIGilbert Island swell forecast issued yesterday at 6:05 pm. Next forecast at approx. 6:05 pm.Get WillyWeather+ to remove ads