If you planning to travel to Aro'a Beach, Rarotonga, Cook Islands, 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 4:52 PM. The temperature feels like 84.4 with a humidity level of 82 so dress accordingly. Cloud coverage is 40 percent with visibility at 12.6 percent. Today’s UV index is 11, don’t forget the sunscreen if you need it! Today’s winds are traveling northeast at a speed of 10 MPH. At the end of the day don’t miss the sunset at 4:50 AM.