Ka'aha Swell ForecastUnited StatesHIHawaiiKa'aha1-Day3-Day5-Day Graph Plots Open in Graphs Swell Height and Direction Forecast NOAA WaveWatch III Swell Period Forecast NOAA WaveWatch IIIKa'aha swell forecast issued today at 1:47 am. Next forecast at approx. 1:47 am.Get an account to remove ads