Papua New Guinea

Papua New Guinea Weather & Climate: Monthly Averages

Monthly climate averages for Papua New Guinea, temperatures, rainfall and the best time to visit.

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Port Moresby Madang Kokopo Lae

Climate overview of Papua New Guinea

Papua New Guinea has a climate characterized by high temperatures and humidity throughout the year. The North West Monsoon season is from December to March while the South West Monsoon season is from May to October. Rainfall is at its heaviest in the highlands with average annual precipitation varying between 2000 mm (79 in) and 5000 mm (197 in).

Average monthly temperature ranges in for example Port Moresby from 26°C (79°F) to 28°C (82°F) throughout the year.

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Port Moresby Madang Kokopo Lae Mount Hagen Erave

Day temperature (°C)

Monthly rainfall (mm)

Monthly sunshine (hours)

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Climate map

Average daily temperature, monthly rainfall & sunshine hours across cities.

Avg day temp (°C)

0° 32°

Regional climate differences

Explore the climate diversity across Papua New Guinea.

Papua Region

23°C (73°F) – 31°C (88°F)

1719 mm (68 in) / year

2,484 hours / year

Based on Port Moresby

New Britain Island

24°C (75°F) – 29°C (84°F)

2789 mm (110 in) / year

2,081 hours / year

Based on Kokopo

Momase Region

24°C (75°F) – 30°C (86°F)

3647 mm (144 in) / year

2,262 hours / year

Based on Madang

Highlands Region

12°C (54°F) – 23°C (73°F)

4659 mm (183 in) / year

Based on Mount Hagen

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Average daytime and nighttime temperatures, yearly rainfall and sunshine.


Port Moresby	29°C (84°F) – 31°C (88°F)	23°C (73°F) – 24°C (75°F)	1719 mm (68 in)	2,484 hours
Madang	29°C (84°F) – 30°C (86°F)	24°C (75°F) – 25°C (77°F)	3647 mm (144 in)	2,262 hours
Kokopo	28°C (82°F) – 29°C (84°F)	24°C (75°F) – 25°C (77°F)	2789 mm (110 in)	2,081 hours
Lae	26°C (79°F) – 29°C (84°F)	22°C (72°F) – 24°C (75°F)	7026 mm (277 in)	—
Mount Hagen	22°C (72°F) – 23°C (73°F)	12°C (54°F) – 14°C (57°F)	4659 mm (183 in)	—
Erave	24°C (75°F) – 27°C (81°F)	17°C (63°F) – 18°C (64°F)	5230 mm (206 in)	—

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FAQ

What is the best time to visit Papua New Guinea?

The warmest month in Port Moresby is December, with daytime highs of 31°C (88°F). Port Moresby is the sunniest destination, with 244 hours of sunshine in November. Explore Papua New Guinea weather by month for a detailed breakdown.

What temperatures can I expect in Papua New Guinea?

Port Moresby is the warmest destination, reaching 31°C (88°F) in December with nights around 24°C (75°F). Mount Hagen is the coolest, with September daytime highs of just 22°C (72°F) and nights dropping to 12°C (54°F). Temperatures are relatively stable throughout the year. See the city comparison for a full overview.

How much rain does Papua New Guinea get?

Rainfall varies across Papua New Guinea. Lae is the wettest, receiving 7026 mm (277 in) per year, with April the wettest month at 731 mm (29 in). Port Moresby is the driest at 1719 mm (68 in) per year. Use the climate map to explore rainfall patterns across regions.

How sunny is Papua New Guinea?

Port Moresby is the sunniest destination in Papua New Guinea, enjoying 2,484 hours of sunshine per year, with November the brightest month at 244 hours. Overall, Papua New Guinea enjoys abundant sunshine year-round. Compare sunshine across cities in the charts above.

What is the climate like across Papua New Guinea?

Port Moresby has very warm summers reaching 31°C (88°F) in December and warm winters dropping to 29°C (84°F), with 2,484 hours of sunshine and 1719 mm (68 in) of rain per year. Madang has very warm summers reaching 30°C (86°F) in January and warm winters dropping to 29°C (84°F), with 2,262 hours of sunshine and 3647 mm (144 in) of rain per year. Kokopo has warm summers reaching 29°C (84°F) in November and warm winters dropping to 28°C (82°F), with 2,081 hours of sunshine and 2789 mm (110 in) of rain per year. Explore the climate charts and comparison table for more cities.