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December Weather in Sumbul, Indonesia

Last updated: August 23, 2025

In December, the average temperature in Sumbul, Indonesia is a pleasant 20°C (68°F). Expect a comfortable range, with minimums dipping to 16°C (61°F) and maximums reaching 27°C (81°F). However, be prepared for some rain, as 311 mm (12.2 in) of precipitation can fall over 28 days. With an average humidity of 88%, you might want to pack a light jacket and an umbrella!

December Temperature in Sumbul

In December in Sumbul, the average temperature is 20°C (68°F). Maximums can reach 27°C (81°F), while minimums can drop as low as 16°C (61°F). This pleasant climate makes Sumbul an ideal destination for travelers seeking comfortable weather during their visit.

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

The chart illustrates December temperature patterns in Sumbul, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sumbul, December typically has an average temperature of 20°C (68°F), with highs reaching up to 27°C (81°F) and lows dropping to around 16°C (61°F).
JanFebMarAprMayJunJulAugSepOctNovDec686969697069686868686868
Data source: Temperature data for Sumbul 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 Sumbul

In Sumbul in December, the precipitation amount is 311 mm (12.2 in) over the course of 28 days.

December Precipitation Trends in Sumbul

The chart displays monthly precipitation patterns in Sumbul, 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 Sumbul, December typically receives around 311 mm (12.2 inches) of precipitation spread over approximately 28 days.
JanFebMarAprMayJunJulAugSepOctNovDec199155212238243149166199256266416311
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Sumbul

In Sumbul in December humidity is 88%. With an average temperature of 20°C (68°F), this humidity feels like a warm, enveloping blanket that clings to your skin, making every step feel heavier and every breath a bit more labored, which can be quite draining for traveling.

December Average Humidity in Sumbul

This chart illustrates the average monthly humidity levels in Sumbul, 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 Sumbul is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec83%74%74%77%83%85%84%87%89%89%88%88%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Sumbul

In Sumbul in December, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in Sumbul.

Maximum UV Index Levels in Sumbul for December

The chart shows the monthly maximum UV Index (UVI) for Sumbul 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 Sumbul typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151617161613131515151413
Data source: Sumbul 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 Sumbul Compares to Other Months

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

This table compares monthly weather conditions in Sumbul, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather20°C (68°F)199 mm (7.8 inches)83%extreme
February Weather20°C (69°F)155 mm (6.1 inches)74%extreme
March Weather21°C (69°F)212 mm (8.3 inches)74%extreme
April Weather21°C (69°F)238 mm (9.4 inches)77%extreme
May Weather21°C (70°F)243 mm (9.6 inches)82%extreme
June Weather21°C (69°F)149 mm (5.9 inches)85%extreme
July Weather20°C (69°F)166 mm (6.5 inches)84%extreme
August Weather20°C (68°F)199 mm (7.8 inches)87%extreme
September Weather20°C (68°F)256 mm (10.1 inches)89%extreme
October Weather20°C (68°F)266 mm (10.5 inches)89%extreme
November Weather20°C (68°F)416 mm (16.4 inches)88%extreme
December Weather20°C (68°F)311 mm (12.2 inches)88%extreme

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