Similar Climates › City Pairings › Port Moresby ≈ Libreville
City Pairings
fair match
Port Moresby, Papua New Guinea and Libreville, Gabon are a fair climate match — 15,227 km (9,462 mi) apart. Port Moresby is Köppen zone Am; Libreville is Am.
See Port Moresby on the interactive map →Looking outward from Port Moresby, the atlas lands on Libreville in the same tropical monsoon (Am) zone — a distant place whose seasons still rise and fall with this city's. From Port Moresby, Libreville is nearly opposite on the globe (15,227 km / 9,462 mi), yet still the place this atlas picks when January and July need a match.
For Port Moresby, Libreville is a fair outward match — close on the main numbers, with a few seasonal quirks. Temperatures stay tight: January means differ by 0°C (Libreville cooler); July by 0°C (Libreville cooler). Rainfall shifts more: Libreville is 55 mm wetter in January, and 15 mm drier in July.
Sunshine stays close: Libreville at 8.9 h/day on average versus 9.7 h/day in Port Moresby (January 9.1 h / 9.2 h, July 8.7 h / 10.2 h). Air quality: mean PM2.5 is 14 µg/m³ in Libreville vs 9 in Port Moresby (higher by 5 µg/m³).
January & July · °C and mm
Compare Port Moresby and Libreville month by month on the interactive map →
See Libreville's climate twin on its own page.
On Similar Climates, Libreville, Gabon is the closest distant match for Port Moresby, Papua New Guinea — scored fair, about 15,227 km (9,462 mi) away.
Port Moresby and Libreville are separated by roughly 15,227 km (9,462 mi) on the great-circle route.
Yes — both cities are in the same hemisphere, so summer and winter fall in the same calendar months.
Yes — both are tropical monsoon (Am).
Port Moresby has a tropical monsoon climate (Am). January averages a high of 31°C and a low of 24°C with 180 mm of rain; July averages 28°C / 23°C and 20 mm.
Port Moresby averages about 9.2 hours of sunshine a day in January and 10.2 hours in July.
January PM2.5 averages about 9.2 µg/m³ (US AQI 48); July averages 9.1 µg/m³ (US AQI 48).
Other close climate matches for Port Moresby: São Tomé (fair), Salvador (loose), Fortaleza (loose).
All tropical monsoon (Am) cities on Similar Climates →
Explore Port Moresby and Libreville on the interactive map →