Hanauma Bay Rainfall ForecastUnited StatesHIHonoluluHanauma BayToday 18 Apr45%Sat 19 Apr40%Sun 20 Apr40%Mon 21 Apr40%Tue 22 Apr75%Wed 23 Apr75%Thu 24 Apr75%Hanauma Bay rainfall forecast issued today at 2:04 pm. Next forecast at approx. 4:04 am.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast NOAA Rain Today Real-Time Molokai RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads