Diamond Head Swell ForecastAustraliaNSWMid North CoastDiamond Head1-Day3-Day5-Day Graph Plots Open in Graphs Swell Height and Direction Forecast NOAA WaveWatch III Swell Period Forecast NOAA WaveWatch IIIDiamond Head swell forecast issued today at 1:13 pm. Next forecast at approx. 1:13 pm.Get WillyWeather+ to remove ads