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December Weather in Alotau, Papua New Guinea

Last updated: August 31, 2025

In Alotau, Papua New Guinea, the average temperature in December hovers around 26°C (80°F), providing a warm atmosphere for visitors. Expect a minimum of 22°C (72°F) and a peak of 32°C (91°F) throughout the month. However, be prepared for some rain, as the region receives an average precipitation of 243 mm (9.6 in) over 26 days, accompanied by a humidity level of 80%. Stay hydrated and enjoy the tropical vibes!

December Temperature in Alotau

In December in Alotau, the average temperature is 26°C (80°F). Maximum temperatures can reach 32°C (91°F), while minimums can drop as low as 22°C (72°F). This makes it an ideal time for travelers seeking warm and pleasant weather.

December Weather in Alotau: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Alotau, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Alotau, December typically has an average temperature of 26°C (80°F), with highs reaching up to 32°C (91°F) and lows dropping to around 22°C (72°F).
JanFebMarAprMayJunJulAugSepOctNovDec808079787776757575777880
Data source: Temperature data for Alotau generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Alotau

In Alotau in December, the precipitation amount is 243 mm (9.6 in), occurring over a span of 26 days.

December Precipitation Trends in Alotau

The chart displays monthly precipitation patterns in Alotau, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Alotau, December typically receives around 243 mm (9.6 inches) of precipitation spread over approximately 26 days.
JanFebMarAprMayJunJulAugSepOctNovDec283307368334218324272248357309250243
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Alotau

In Alotau in December humidity is 80%. With an average temperature of 26°C (80°F), this humidity feels like a warm, enveloping blanket, making it quite uncomfortable for traveling. The thick, heavy air can leave you feeling sticky and fatigued, making outdoor activities more challenging and necessitating frequent breaks for hydration and cooling down.

December Average Humidity in Alotau

This chart illustrates the average monthly humidity levels in Alotau, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Alotau is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%79%79%81%85%85%83%82%80%82%81%80%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Alotau

In Alotau in December, the maximum UV index reaches an alarming 15, which falls into the extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take precautions. For detailed information, you can check the Hourly UV Index in Alotau.

Maximum UV Index Levels in Alotau for December

The chart shows the monthly maximum UV Index (UVI) for Alotau in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In December, the maximum UV index in Alotau typically reaches 15, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec161616151210111315161515
Data source: Alotau December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How December Weather in Alotau Compares to Other Months

Weather in Alotau varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Alotau, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Alotau, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather26°C (80°F)283 mm (11.1 inches)80%extreme
February Weather27°C (80°F)306 mm (12.1 inches)79%extreme
March Weather26°C (79°F)368 mm (14.5 inches)79%extreme
April Weather26°C (79°F)334 mm (13.1 inches)81%extreme
May Weather25°C (78°F)218 mm (8.6 inches)85%extreme
June Weather24°C (76°F)324 mm (12.8 inches)85%very high
July Weather24°C (76°F)272 mm (10.7 inches)83%extreme
August Weather24°C (75°F)248 mm (9.8 inches)82%extreme
September Weather24°C (76°F)357 mm (14.1 inches)80%extreme
October Weather25°C (77°F)309 mm (12.2 inches)82%extreme
November Weather26°C (78°F)250 mm (9.8 inches)81%extreme
December Weather26°C (80°F)243 mm (9.6 inches)80%extreme

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