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December Weather in Sarmi, Indonesia

Last updated: August 23, 2025

In December, the average temperature in Sarmi, Indonesia hovers around 28°C (83°F), creating a warm and inviting atmosphere. Temperatures can dip to a comfortable 25°C (78°F) at their lowest, while peaks can reach up to 32°C (90°F). However, be prepared for some wet weather, as 276 mm (10.8 in) of precipitation tends to fall over 28 days, maintaining a 76% average humidity.

December Temperature in Sarmi

In December in Sarmi, the average temperature is 28°C (83°F), with maximums reaching up to 32°C (90°F) and minimums dropping as low as 25°C (78°F). This makes it an ideal time for travelers seeking warm weather and pleasant conditions for outdoor activities.

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

The chart illustrates December temperature patterns in Sarmi, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sarmi, December typically has an average temperature of 28°C (83°F), with highs reaching up to 32°C (90°F) and lows dropping to around 25°C (78°F).
JanFebMarAprMayJunJulAugSepOctNovDec828282828382828282838383
Data source: Temperature data for Sarmi 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 Sarmi

In Sarmi in December, the precipitation amount is 276 mm (10.8 in) over a period of 28 days.

December Precipitation Trends in Sarmi

The chart displays monthly precipitation patterns in Sarmi, 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 Sarmi, December typically receives around 276 mm (10.8 inches) of precipitation spread over approximately 28 days.
JanFebMarAprMayJunJulAugSepOctNovDec168244271262235295290259206208227276
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Sarmi

In Sarmi in December, humidity is 76%. With an average temperature of 28°C (83°F), this humidity feels like a warm, sticky embrace, making outdoor activities challenging and requiring travelers to stay hydrated and take frequent breaks in the shade.

December Average Humidity in Sarmi

This chart illustrates the average monthly humidity levels in Sarmi, 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 Sarmi is approximately 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%77%75%76%75%76%76%79%79%77%77%76%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Sarmi

In Sarmi in December, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in Sarmi, you can check here.

Maximum UV Index Levels in Sarmi for December

The chart shows the monthly maximum UV Index (UVI) for Sarmi 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 Sarmi typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151617161412121415151414
Data source: Sarmi 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 Sarmi Compares to Other Months

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

This table compares monthly weather conditions in Sarmi, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather28°C (83°F)168 mm (6.6 inches)76%extreme
February Weather28°C (82°F)244 mm (9.6 inches)76%extreme
March Weather28°C (82°F)271 mm (10.7 inches)75%extreme
April Weather28°C (83°F)262 mm (10.3 inches)76%extreme
May Weather28°C (83°F)234 mm (9.2 inches)75%extreme
June Weather28°C (82°F)294 mm (11.6 inches)76%extreme
July Weather28°C (82°F)289 mm (11.4 inches)76%extreme
August Weather28°C (82°F)259 mm (10.2 inches)79%extreme
September Weather28°C (83°F)206 mm (8.1 inches)78%extreme
October Weather28°C (83°F)208 mm (8.2 inches)77%extreme
November Weather28°C (83°F)227 mm (8.9 inches)76%extreme
December Weather28°C (83°F)276 mm (10.8 inches)76%extreme

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