May weather forecast
Papua New Guinea

May marks the official onset of the dry season in Papua New Guinea, leading to a considerable decrease in rainfall compared to the preceding months. Despite the drop in precipitation, occasional showers can still occur. Consistent with the country's tropical climate, temperatures remain relatively stable, typically ranging from 25°C (77°F) to 30°C (86°F).

In coastal regions such as Port Moresby and Lae, the reduction in rainfall becomes more apparent in May. While humidity levels decline, the decrease in cloud cover often results in bright and sunny days. However, the heat is generally less intense due to the decreased humidity.

In the highlands, cities like Goroka and Mount Hagen follow a similar pattern, with rainfall decreasing noticeably during May. The nights can become slightly cooler due to the decreased cloud cover and the cities' higher altitude.

Looking forward to June, the rainfall continues to decline across the country as the dry season progresses. However, the temperatures remain within the usual range of 25°C (77°F) to 30°C (86°F), ensuring the continuation of warm conditions characteristic of Papua New Guinea's climate.

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• Port Moresby - May »
  May and June, with an average relative humidity of 80%, are most humid months in Port Moresby, Papua New Guinea. On the first day of May in Port Moresby sunrise is at 06:15 and sunset at 18:01.
• Lae - May »
  Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. January through July, September through December, with an average maximum UV index of 6, are months with the highest UV index in Lae, Papua New Guinea.
• Mount Hagen - May »
  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. In Mount Hagen during the entire year, the rain falls for 288 days and collects up to 2638mm (103.86") of precipitation.
• Madang - May »
  January through May, with an average relative humidity of 85%, are most humid months in Madang, Papua New Guinea. On the first day of May in Madang, Papua New Guinea, sunrise is at 06:16 and sunset at 18:11.
• Wewak - May »
  In Wewak, Papua New Guinea, during the entire year, the rain falls for 333.4 days and collects up to 2263mm (89.09") of precipitation. In Wewak in May, it is raining for 29.3 days, with typically 185mm (7.28") of accumulated precipitation.
• Goroka - May »
  On the first day of May in Goroka sunrise is at 06:18 and sunset at 18:12. The shift to May in Goroka, Papua New Guinea, signals an average high-temperature of a still moderately hot 27°C (80.6°F), subtly varied from April's 28°C (82.4°F).
• Kokopo - May »
  On the last day of the month, in Kokopo, Papua New Guinea, sunrise is at 05:52 and sunset at 17:45 +10. On the last day of May, in Kokopo sunrise is at 05:52 and sunset at 17:45 +10.
• Mendi - May »
  The dawn of May in Mendi brings a marginal shift in the average high-temperature to a still warm 23.6°C (74.5°F), equivalent to April's readings. What time are sunrise and sunset in May in Mendi?
• Kimbe - May »
  April through June, August through November, with an average maximum UV index of 7, are months with the highest UV index in Kimbe, Papua New Guinea. In May, in Kimbe the rain falls for 29.7 days.
• Arawa - May »
  In Arawa, during May, the rain falls for 30.3 days and regularly aggregates up to 449mm (17.68") of precipitation. In Arawa, during the entire year, the rain falls for 352.6 days and collects up to 5043mm (198.54") of precipitation.
• Vanimo - May »
  May in Vanimo offers a momentary deviation from the usual weather patterns, featuring reduced rainfall and slightly increased temperature levels. On the last day of the month, in Vanimo, Papua New Guinea, sunrise is at 06:33 and sunset at 18:31 +10.