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.

---

• Port Moresby - January »
  January and February, with an average relative humidity of 73%, are the least humid months in Port Moresby. The average relative humidity in January is 73%.
• Lae - January »
  The average heat index, which calculates the temperature value influenced by the moisture in the air, in January is computed to be 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 most sunshine in Mount Hagen are January, October through December, with an average of 5h of sunshine. In Mount Hagen during January, the rain falls for 24 days and regularly aggregates up to 283mm (11.14") of precipitation.
• Madang - January »
  The months with the highest humidity in Madang are January through May, with an average relative humidity of 85%. January through May, August through December, with an average maximum UV index of 12, are months with the highest UV index in Madang, Papua New Guinea.
• Wewak - January »
  The weather in January in Wewak, Papua New Guinea, maintains consistent heat, reflecting the tropical climate. January in Wewak, Papua New Guinea, sees a slight dip to an average low temperature of 25°C (77°F) from the daytime highs.
• Goroka - January »
  The months with the most sunshine in Goroka, Papua New Guinea, are January, February, June, September through December, with an average of 5h of sunshine. January, February, June, September through December, with an average of 5h of sunshine, are months with the most sunshine in Goroka, Papua New Guinea.
• Kokopo - January »
  In Kokopo in January, during 27.1 rainfall days, 217mm (8.54") of precipitation is typically accumulated. The months with the most sunshine in Kokopo are January and February, with an average of 9.7h of sunshine.
• Mendi - January »
  On the last day of January, in Mendi, sunrise is at 06:27 and sunset at 18:50 +10. In Mendi, the average temperatures in January are the highest, with a peak at 23.8°C (74.8°F) and a low of 12.8°C (55°F).
• Kimbe - January »
  The months with the lowest UV index in Kimbe, Papua New Guinea, are January through March, July and December, with an average maximum UV index of 6. In January, the average relative humidity in Kimbe is 85%.
• 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, Papua New Guinea, are January, February, September through December, with an average maximum UV index of 6.
• Vanimo - January »
  The average heat index, which combines air temperature and relative humidity, in January is evaluated at 35°C (95°F). January in Vanimo, Papua New Guinea, is characterized by warm temperatures and high humidity.