August weather forecast in Port Moresby

August in Port Moresby is the sunniest month of the year. In August, the weather in Port Moresby is typically hot. Average daily high temperature in August is about 28 degrees above zero. On average, Port Moresby has 11 rainy, 10 partly cloudy, 6 sunny, and 4 cloudy days in August. The rains are usually heavy.