January weather forecast
Papua New Guinea

January in Papua New Guinea falls in the midst of the country's rainy season, and it is generally characterized by heavy rainfall and high humidity levels. During this month, the average temperature typically ranges between 25°C (77°F) to 30°C (86°F). It is important to note that these temperatures remain relatively consistent across the country, from the coastal cities of Port Moresby and Lae to the inland areas of Goroka and Mount Hagen. However, due to the country's varied geography, there can be localized variations in weather patterns.

Port Moresby, the capital and largest city, experiences significant rainfall in January, with precipitation often exceeding 200mm (7.87"). Despite the high rainfall, it is one of the less wet coastal cities compared to others like Lae, which typically sees even greater rainfall amounts due to its position on the windward side of the island.

In the highlands region, where cities like Goroka and Mount Hagen are located, January is also a month of heavy rainfall. These cities, being at higher elevations, experience slightly cooler temperatures, especially during the night, as compared to the coastal regions.

Compared to December, the preceding month, January experiences a slight increase in rainfall. However, the temperatures remain relatively stable. Looking ahead to February, the amount of rainfall generally remains high, and temperatures continue to be steady, maintaining the trend of warm and wet conditions characteristic of Papua New Guinea's rainy season.

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• Port Moresby - January »
  January and February, with an average relative humidity of 73%, are the least humid months in Port Moresby, Papua New Guinea. January, March through May, October through December, with an average maximum UV index of 7, are months with the highest UV index in Port Moresby, Papua New Guinea.
• Lae - January »
  The average heat index, which represents the influence of relative humidity on air temperature, in January is evaluated at 31°C (87.8°F). January in Lae often starts the year with warm days and plentiful rainfall.
• Mount Hagen - January »
  The months with the highest UV index in Mount Hagen are January through May, July through December, with an average maximum UV index of 12. January, October through December, with an average of 5h of sunshine, are months with the most sunshine in Mount Hagen, Papua New Guinea.
• Madang - January »
  In January, the average heat index, which represents the influence of relative humidity on air temperature, is evaluated at 42°C (107.6°F). The months with the highest humidity in Madang are January through May, with an average relative humidity of 85%.
• Wewak - January »
  The weather in January in Wewak maintains consistent heat, reflecting the tropical climate. The months with the lowest UV index in Wewak are January, March, November and December, with an average maximum UV index of 6.
• Goroka - January »
  The months with the highest UV index in Goroka are January through May, July through December, with an average maximum UV index of 12. The beginning of January in Goroka, Papua New Guinea, reveals an average high-temperature of a still warm 28°C (82.4°F), showing minimal deviation from the previous month.
• Kokopo - January »
  In Kokopo, in January, it is raining for 27.1 days, with typically 217mm (8.54") of accumulated precipitation. The ushering in of January in Kokopo brings an average high-temperature of a still warm 28.5°C (83.3°F), closely mirroring the 29°C (84.2°F) of December.
• Mendi - January »
  On the first day of January in Mendi sunrise is at 06:14 and sunset at 18:42. On the first day of January in Mendi, sunrise is at 06:14 and sunset at 18:42.
• Kimbe - January »
  The months with the lowest UV index in Kimbe are January through March, July and December, with an average maximum UV index of 6. Kimbe city in January witnesses temperatures not drastically departing from its tropical climate norm, with high average temperatures reaching 28.5°C (83.3°F) and dipping to as low as 23.5°C (74.3°F).
• Arawa - January »
  January and February, with an average relative humidity of 88%, are the least humid months in Arawa, Papua New Guinea. The months with the highest UV index in Arawa are January, February, September through December, with an average maximum UV index of 6.
• Vanimo - January »
  In Vanimo during January, the rain falls for 28.6 days and regularly aggregates up to 200mm (7.87") of precipitation. January in Vanimo, Papua New Guinea, is characterized by warm temperatures and high humidity.