December weather forecast in Port Moresby

December in Port Moresby is the hottest month of the year. In December, the weather in Port Moresby is typically hot. Average daily high temperature in December is about 30 degrees above zero. On average, Port Moresby has 12 cloudy, 11 rainy, 5 sunny, and 3 partly cloudy days in December. The rains are usually moderate.