Port Moresby Weather & Climate

Papua New Guinea

Port Moresby sees feels-like daytime highs peak around 38.9°C in January and nighttime lows bottom out near 29.1°C in August. March is the wettest month (~193 mm), while September is the driest (~20 mm). For sunshine, August leads with about 36% clear skies.

Best time to visit Port Moresby

Based on mild feels-like temperatures and low rain chances, the most comfortable months are August, July, and September — expect around 29.136°C with roughly 9% chance of rain on a given day in August.

Port Moresby climate by month

MonthLow / High °CRain %RainfallClear skiesWind
January30.5° / 38.9°42%165 mm9%12.3 kph
February30.5° / 38.8°44%177 mm10%12.6 kph
March30.3° / 37.6°45%193 mm12%12.3 kph
April30.4° / 37.5°34%135 mm16%13.7 kph
May30.5° / 37.6°22%63 mm22%16.1 kph
June30.2° / 36.3°16%38 mm27%18.5 kph
July29.2° / 36.1°9%25 mm33%20 kph
August29.1° / 36°9%21 mm36%20.1 kph
September29.9° / 36.1°9%20 mm32%18.9 kph
October30.5° / 37.6°11%29 mm25%16.8 kph
November30.6° / 38.9°18%53 mm18%14 kph
December30.4° / 38.8°30%103 mm11%12.3 kph

Feels-like temperatures from long-term historical data; ☀ marks the most comfortable months (mild temperatures, low rain).

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