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December Weather in Sumur, Indonesia

Last updated: August 23, 2025

In December, the average temperature in Sumur, Indonesia is a pleasant 23°C (73°F), with daily highs reaching up to 31°C (88°F) and lows dipping to around 18°C (65°F). Expect 371 mm (14.6 in) of precipitation over the month, accompanied by an average humidity of 76%. Perfect for those looking to explore the beauty of this destination!

December Temperature in Sumur

In December in Sumur, the average temperature is 23°C (73°F). The maximum can reach 31°C (88°F), and the minimum can be as low as 18°C (65°F). This pleasant climate makes Sumur an ideal destination for outdoor activities and exploration during this time.

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

The chart illustrates December temperature patterns in Sumur, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sumur, December typically has an average temperature of 23°C (73°F), with highs reaching up to 31°C (88°F) and lows dropping to around 18°C (65°F).
JanFebMarAprMayJunJulAugSepOctNovDec727273737271697071737373
Data source: Temperature data for Sumur 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 Sumur

In Sumur in December, the total precipitation amount is 371 mm (14.6 in) over the course of 30 days.

December Precipitation Trends in Sumur

The chart displays monthly precipitation patterns in Sumur, 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 Sumur, December typically receives around 371 mm (14.6 inches) of precipitation spread over approximately 30 days.
JanFebMarAprMayJunJulAugSepOctNovDec37541741326910990494594150352371
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Sumur

In Sumur in December humidity is 76%. With an average temperature of 23°C (73°F), this humidity feels like a warm, enveloping blanket, making outdoor activities feel more intense and prompting travelers to seek shade or cool breaks more frequently.

December Average Humidity in Sumur

This chart illustrates the average monthly humidity levels in Sumur, 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 Sumur is approximately 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%83%82%80%81%79%77%77%77%76%77%76%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Sumur

In Sumur 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 Sumur.

Maximum UV Index Levels in Sumur for December

The chart shows the monthly maximum UV Index (UVI) for Sumur 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 Sumur typically reaches 15, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141615141311121415161515
Data source: Sumur 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 Sumur Compares to Other Months

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

This table compares monthly weather conditions in Sumur, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather22°C (73°F)375 mm (14.8 inches)79%extreme
February Weather22°C (73°F)417 mm (16.4 inches)83%extreme
March Weather23°C (73°F)413 mm (16.2 inches)82%extreme
April Weather23°C (73°F)268 mm (10.6 inches)80%extreme
May Weather22°C (73°F)109 mm (4.3 inches)81%extreme
June Weather22°C (71°F)90 mm (3.5 inches)79%extreme
July Weather21°C (69°F)49 mm (1.9 inches)77%extreme
August Weather21°C (70°F)45 mm (1.8 inches)77%extreme
September Weather22°C (71°F)94 mm (3.7 inches)77%extreme
October Weather23°C (73°F)150 mm (5.9 inches)76%extreme
November Weather23°C (73°F)352 mm (13.9 inches)76%extreme
December Weather23°C (73°F)371 mm (14.6 inches)76%extreme

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