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December Weather in Sintang, Indonesia

Last updated: August 23, 2025

In December, the average temperature in Sintang, Indonesia hovers around 27°C (81°F), making it a warm destination for visitors. Expect lows around 22°C (72°F) and highs peaking at 34°C (94°F). However, be prepared for some rain, as the region experiences an average precipitation of 256 mm (10.1 in) spread over 28 days. With an average humidity of 89%, it’s advisable to stay hydrated and dress accordingly!

December Temperature in Sintang

In December in Sintang, the average temperature is 27°C (81°F), with maximums reaching 34°C (94°F) and minimums dipping to 22°C (72°F). This pleasant climate makes it an ideal time for travelers to explore and enjoy outdoor activities.

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

The chart illustrates December temperature patterns in Sintang, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sintang, December typically has an average temperature of 27°C (81°F), with highs reaching up to 34°C (94°F) and lows dropping to around 22°C (72°F).
JanFebMarAprMayJunJulAugSepOctNovDec808081818281818181818080
Data source: Temperature data for Sintang 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 Sintang

In Sintang in December, the precipitation amount is 256 mm (10.1 in) over a span of 28 days.

December Precipitation Trends in Sintang

The chart displays monthly precipitation patterns in Sintang, 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 Sintang, December typically receives around 256 mm (10.1 inches) of precipitation spread over approximately 28 days.
JanFebMarAprMayJunJulAugSepOctNovDec198242287257248240170204248344365257
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Sintang

In Sintang in December humidity is 89%. With an average temperature of 27°C (81°F), this humidity feels like a wet blanket enveloping you, making outdoor activities challenging and travel a little less comfortable.

December Average Humidity in Sintang

This chart illustrates the average monthly humidity levels in Sintang, 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 Sintang is approximately 89%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%90%90%89%88%88%88%90%84%89%88%89%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Sintang

In Sintang 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 Sintang.

Maximum UV Index Levels in Sintang for December

The chart shows the monthly maximum UV Index (UVI) for Sintang 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 Sintang typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141616151412121415151413
Data source: Sintang 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 Sintang Compares to Other Months

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

This table compares monthly weather conditions in Sintang, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather27°C (80°F)198 mm (7.8 inches)90%extreme
February Weather27°C (80°F)242 mm (9.5 inches)90%extreme
March Weather27°C (81°F)287 mm (11.3 inches)90%extreme
April Weather27°C (81°F)257 mm (10.1 inches)89%extreme
May Weather28°C (82°F)248 mm (9.8 inches)88%extreme
June Weather27°C (81°F)240 mm (9.5 inches)88%extreme
July Weather27°C (81°F)170 mm (6.7 inches)88%extreme
August Weather27°C (81°F)204 mm (8.0 inches)89%extreme
September Weather27°C (81°F)248 mm (9.8 inches)84%extreme
October Weather27°C (81°F)344 mm (13.5 inches)89%extreme
November Weather27°C (81°F)365 mm (14.4 inches)88%extreme
December Weather27°C (81°F)256 mm (10.1 inches)89%extreme

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