If you planning to travel to Wailua Falls, Kapaa, 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 5:19 PM. The temperature feels like 77.65 with a humidity level of 86 so dress accordingly. Cloud coverage is 80 percent with visibility at 6 percent. Today’s UV index is 4, don’t forget the sunscreen if you need it! Today’s winds are traveling southwest at a speed of 19 MPH. At the end of the day don’t miss the sunset at 4:27 AM.