Port Moresby weather in June

June in Port Moresby: sweltering, a little rain, with clean air — fine if you can take 35°C afternoons.

Updated September 2026 · climate normals from ERA5 reanalysis

Port Moresby🇵🇬 Papua New Guinea · South Pacific · City72
  1. 51Jan
  2. 55Feb
  3. 49Mar
  4. 56Apr
  5. 62May
  6. 72Jun
  7. 74Jul
  8. 75Aug
  9. 71Sep
  10. 67Oct
  11. 65Nov
  12. 60Dec

#3 of 12 months in Port Moresby · #938 of 1413 destinations to visit in June · comfort 72/100 (tier B)

Days
31°C
Nights
24°C
Wet days
9
Sun
9.7 h
Humidity
83%
Daylight
12 h
Port Moresby, Papua New Guinea
Photo: Toktok No Maski Productions · Pexels

Traveller notes on Port Moresby in June

Other months in Port Moresby

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.
Tripadvisor community · February · 1 month ago · Read more on Tripadvisor ↗
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.
Tripadvisor community · August · 1 month ago · Read more on Tripadvisor ↗

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Port Moresby climate normals — June

Daytime high31°C / 88°F🔥 sweltering
Nighttime low24°C / 75°F
Feels like (high)35°C / 95°F
Sea temperature28°C / 82°F😎 warm sea
Rainfall54 mm / 2.1 in🌦 some rain
Rainy days9 days
Humidity83%💦 very humid
Dew point23°C / 74°F
Sunshine9.7 h/day
Daylight11.6 h
Wind18 km/h / 11 mph
Air quality (US AQI)33🍃 good

Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.

Crowds in Port Moresby in June

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 3 of the markets that fill it(estimated)

JFMAMJJASOND

Peak crowdsBusyShoulder seasonQuiet

Best months for Port Moresby's weather

Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).

Best weatherPort Moresby's weather peaks June–August.

JFMAMJJASOND

Best weatherFair weatherToughest weather

What's on in Port Moresby in June

Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.

  • Rule

    Kokoda trek permit

    1 Jan – 31 Dec

    Everyone walking the Kokoda Track needs a permit from the track authority, independent or on a tour, and the fee funds the villages along it. Owers' Corner, the southern trailhead, is an hour and a half out of Moresby. Source ↗

  • Season

    Kokoda walking season

    1 Apr – 15 Nov · usuallyTrail seasonCrowdedBook early

    Companies run the track between about April and November, when the creek crossings are lower and the mud is merely bad. The two Anzac-week departures and the August school groups fill first.

  • Season

    South-east trade season

    1 May – 31 OctDry season

    Moresby sits in a rain shadow and its dry half is properly dry, brown and breezy — nothing like the rest of the country. It is also when the Owen Stanley crossings and the coastal boats are dependable.

What's on around the world in June →

Where is Port Moresby?

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Port Moresby in June — FAQ

Is June a good time to visit Port Moresby?
June in Port Moresby: sweltering, a little rain, with clean air — fine if you can take 35°C afternoons. It ranks #3 of 12 months for Port Moresby on SeasonMap's comfort score (72/100).
What is the weather like in Port Moresby in June?
In June, Port Moresby averages a daily high of 31°C and a low of 24°C, with about 54.1 mm of rain over roughly 8.7 rainy days.
What is the air quality in Port Moresby in June?
Port Moresby has a mean US Air Quality Index of about 33 in June.