If you planning to travel to Manawaiopuna Falls, Kalaheo, Hawaii, here is your 6-day travel weather forecast to make sure you have all the essentials needed during your stay. Start your day when the sunrises at 4:49 PM. The temperature feels like 71.35 with a humidity level of 73 so dress accordingly. Cloud coverage is 7 percent with visibility at 14.4 percent. Today’s UV index is 9, don’t forget the sunscreen if you need it! Today’s winds are traveling east-northeast at a speed of 20 MPH. At the end of the day don’t miss the sunset at 4:48 AM.