About Port Moresby, National Capital's Climate & Weather History

Port Moresby is a city of approximately 284,000 people in National Capital, Papua New Guinea. Located in the Pacific/Port Moresby time zone at 9.5°S latitude.

In 2025, Port Moresby recorded an average annual temperature of 80°F. The hottest temperatures reached 91°F in October; the coolest were 72°F in June. Total precipitation for the year was 88 inches, with the wettest month being November.