Waikoko Beach Rainfall ForecastUnited StatesHIKauaiWaikoko BeachToday 18 Apr65%Sat 19 Apr65%Sun 20 Apr65%Mon 21 Apr65%Tue 22 Apr75%Wed 23 Apr75%Thu 24 Apr75%Waikoko Beach rainfall forecast issued today at 6:04 pm. Next forecast at approx. 8:04 am.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast NOAA Rain Today Real-Time South Kauai RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads