Port Moresby weather by month
The best time to visit Port Moresby is June to August — 75/100 in August, 31°C and 9 rainy days. The best season is the dry season, May to November (69/100 on average).
The worst month is March at 49/100 — sweltering, soaked, clean air. See March →
Updated September 2026 · climate normals from ERA5 reanalysis
Best season: May to November (69/100 on average) · worst March (49/100)
- Days
- 31°C
- Nights
- 24°C
- Wet days
- 9
- Sun
- 9.9 h
- Humidity
- 78%
- Daylight
- 12 h
Port Moresby, month by month
Comfort score out of 100 for the kind of trip Port Moresby is best for, the average high, rainy days and hours of sun a day from the climate normals, and how busy it tends to be.
What's on in Port Moresby through the year
Festivals, natural spectacles, holidays and the seasons to watch out for — curated and sourced. The month pages carry the detail.
Crowds in Port Moresby in August
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
BusyKokoda walking season, school holidays in 2 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet
Good to know before you go to Port Moresby
Real experiences from travellers' own write-ups, quoted with a link to the original.
culture
We split the visit deliberately into a short practical stretch for documents and onward planning, plus a longer window to actually engage with the culture, since a hurried visit here misses the point entirely. The PNG Cultural Centre was worth the whole detour on its own, traditional dance performances and art demonstrations representing tribes we'd never otherwise have learned about. We changed a little money at the airport despite the poor rate for immediate cash needs, then used BSP ATMs in the city for everything after that. A slow-cooked mumu feast, meat and vegetables cooked for hours in an underground oven, was the single best meal of the whole PNG trip.
Traveller notes on Port Moresby
What people who have been say about the place — the year-round notes first, then month by month.
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.
Add your own note from Port Moresby's card on the map.