Kapa'a Beach Rainfall ForecastUnited StatesHIKauaiKapa'a BeachToday 17 Apr65%Fri 18 Apr60%Sat 19 Apr50%Sun 20 Apr45%Mon 21 Apr45%Tue 22 Apr50%Wed 23 Apr45%Kapa'a Beach rainfall forecast issued today at 12:04 am. Next forecast at approx. 2:04 pm.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