Mauna Kea Beach Swell ForecastUnited StatesHIHawaiiMauna Kea Beach1-Day3-Day5-Day Graph Plots Open in Graphs Swell Height and Direction Forecast NOAA WaveWatch III Swell Period Forecast NOAA WaveWatch IIIMauna Kea Beach swell forecast issued today at 7:46 pm. Next forecast at approx. 7:46 pm.Get WillyWeather+ to remove ads