Thermograph

Port Moresby, National Capital, Papua New Guinea climate

Average temperatures, precipitation and all-time records for Port Moresby, National Capital, Papua New Guinea, with every day graded against ~46 years of local climate history (1980–2026). Its warmest month is November, averaging a high of 30°C, and its coldest is August, with an average low of 21°C.

Port Moresby, also referred to as Pom City or simply Moresby, is the capital and largest city of Papua New Guinea. It is one of the largest cities in the southwestern Pacific outside of Australia and New Zealand. via Wikipedia

How today compares

Latest recorded day: 2026-10-09. Each reading placed on Port Moresby, National Capital, Papua New Guinea's own ±7-day seasonal distribution.

High 28°C Low · 20th pct*
Low 22°C Above Normal · 62nd pct
Feels-like 32°C Low · 13th pct*
Humidity 17.5 g/m³ Low · 16th pct
Wind 23 km/h Near Record · 99.7th pct*
Gust* 53 km/h Near Record · 99.1th pct*
Precip 0 mm Dry

Percentiles marked * are pending verification.

Open Port Moresby in the live weather grader →

Port Moresby average temperatures by month

Typical daily high and low, and average precipitation, for each month in Port Moresby, National Capital, Papua New Guinea, based on 1980–2026 records. The wettest month is March (10 mm on an average day).

MonthAvg highAvg lowAvg precip
January 30°C 23°C 8 mm
February 30°C 22°C 8 mm
March 29°C 22°C 10 mm
April 29°C 22°C 8 mm
May 29°C 22°C 5 mm
June 28°C 22°C 3 mm
July 28°C 21°C 3 mm
August 28°C 21°C 3 mm
September 29°C 21°C 3 mm
October 29°C 22°C 5 mm
November 30°C 22°C 5 mm
December 30°C 22°C 8 mm

Each bar spans the 10th-percentile daily low to the 90th-percentile daily high (the range most days fall within), coloured cold → hot on a shared -23°C to 46°C scale, so the whole year's rhythm reads at a glance.

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Record extremes

  • Hottest day on record: 34°C on 2018-12-13
  • Coldest day on record: 14°C on 1997-09-07

All Port Moresby weather records →

Percentiles compare each day to Port Moresby, National Capital, Papua New Guinea's own history, so grades are relative to this location: a “Near Record” day here isn't the same temperature as elsewhere. How the grades work →