Papua New Guinea weather

Get the latest coronavirus (COVID-19) updates for Papua New Guinea with current travel advice, statistics and online resources.

Below are the temperatures expected today at popular destinations in Papua New Guinea. Select a destination to compare today's forecast with average weather conditions.

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The weather guide for Papua New Guinea shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by MeteoBlue. Find out more about our data sources.

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Which is the hottest month in Papua New Guinea?

The hottest time of year in Port Moresby, Papua New Guinea is normally December. Expect maximum daytime temperatures to reach 31°C with very high heat and humidity.

Which month has the most rain in Papua New Guinea?

In terms of rainfall, March is usually the wettest month in Port Moresby, Papua New Guinea with 248mm on average. There are normally 19 days in March with some rain.

When is it sunniest in Papua New Guinea?

The sunniest time of year in Port Moresby, Papua New Guinea is normally October with bright sunshine on average for 58% of daylight hours; that's 7 hours of sunshine per day.

When is the sea warmest in Papua New Guinea?

The sea is usually at its warmest in Port Moresby, Papua New Guinea in January when the water temperature reaches 29°C.

Metric (°C / mm) | Imperial (°F / inches)

Compare Papua New Guinea weather with the USA

Below the Papua New Guinea weather chart shows average maximum daytime temperature for Papua New Guinea (Port Moresby) and the USA (Washington).

Maximum daytime temperature (°C)

Papua New Guinea (Port Moresby)

USA (Washington)

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Metric (°C / mm) | Imperial (°F / inches)

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Papua New Guinea weather overview

Papua New Guinea, the eastern part of the island of New Guinea, has mountains at its heart and a tropical climate throughout. The swamplands in the south (which include Port Moresby) have the lowest rainfall but are always humid and oppressive. Higher regions are cooler, with snow on the highest peaks and heavy rainfall all year. The north, which includes the Sepik River, endures torrential rains during the northwest monsoon (November to March).