Port Moresby weather in December

Detailed month-specific trip reports for Port Moresby are limited on the forum, with most Papua New Guinea travel discussion focused on itinerary planning and logistics rather than granular weather detail for February specifically. Given the thin destination-specific coverage, this note leans on the well-established regional pattern for this part of the South Pacific: February sits within the Southern Hemisphere's wet season here, meaning hot, humid conditions with frequent rain and real afternoon thunderstorm activity typical of a tropical monsoon climate. Posters discussing PNG travel generally note that humidity and rain are part of the deal regardless of exact month, with proper rain gear and flexible outdoor plans recommended as standard preparation for a February visit to Port Moresby.

Forum posters flag August trade winds as capable of running quite strong across Papua New Guinea, a real factor for coastal areas and boat travel. Posters note the southeast of the country (Alotau and surrounding islands) gets most of its rain in the July-August stretch specifically, though this is a different region from Port Moresby itself. Posters generally rate October as offering mainly dry weather with just occasional showers, implying August around Port Moresby should already be within the broader dry season but with real wind to plan around. Given how few detailed trip reports exist specifically for Port Moresby's August weather, this general seasonal pattern - dry but breezy - is the most reliable guide available.