December Weather in Kotabaru, Indonesia

Last updated: August 23, 2025

In December, the average temperature in Kotabaru, Indonesia hovers around 24°C (75°F), with comfortable lows of 20°C (68°F) and warm highs reaching up to 31°C (88°F). Expect a generous 423 mm (16.6 in) of precipitation spread over 29 days, contributing to an average humidity level of 78%.

December Temperature in Kotabaru

In December in Kotabaru, the average temperature is 24°C (75°F). Maximums can reach 31°C (88°F), while minimums can drop to as low as 20°C (68°F). This pleasant weather makes Kotabaru an ideal destination for travelers seeking a comfortable climate.

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

The chart illustrates December temperature patterns in Kotabaru, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kotabaru, December typically has an average temperature of 24°C (75°F), with highs reaching up to 31°C (88°F) and lows dropping to around 20°C (68°F).
JanFebMarAprMayJunJulAugSepOctNovDec757575767574717172737575
Data source: Temperature data for Kotabaru 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 Kotabaru

In Kotabaru in December, the total precipitation amount is 423 mm (16.6 in) over a span of 29 days.

December Precipitation Trends in Kotabaru

The chart displays monthly precipitation patterns in Kotabaru, 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 Kotabaru, December typically receives around 423 mm (16.6 inches) of precipitation spread over approximately 29 days.
JanFebMarAprMayJunJulAugSepOctNovDec4374654443301771058073121183392423
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Kotabaru

In Kotabaru in December humidity is 78%. With an average temperature of 24°C (75°F), this humidity feels like a warm blanket wrapping around you, making travel sticky and heavy but also inviting, as long as you're prepared with plenty of water and light clothing.

December Average Humidity in Kotabaru

This chart illustrates the average monthly humidity levels in Kotabaru, 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 Kotabaru is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%87%85%82%81%81%79%76%72%74%78%78%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Kotabaru

In Kotabaru 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 Kotabaru, you can check here.

Maximum UV Index Levels in Kotabaru for December

The chart shows the monthly maximum UV Index (UVI) for Kotabaru 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 Kotabaru typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151516141211111314151514
Data source: Kotabaru 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 Kotabaru Compares to Other Months

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

This table compares monthly weather conditions in Kotabaru, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather24°C (75°F)437 mm (17.2 inches)84%extreme
February Weather24°C (75°F)465 mm (18.3 inches)87%extreme
March Weather24°C (76°F)444 mm (17.5 inches)85%extreme
April Weather24°C (76°F)330 mm (13.0 inches)82%extreme
May Weather24°C (76°F)177 mm (7.0 inches)81%extreme
June Weather23°C (74°F)105 mm (4.1 inches)81%extreme
July Weather22°C (72°F)80 mm (3.2 inches)79%extreme
August Weather21°C (71°F)73 mm (2.9 inches)76%extreme
September Weather22°C (72°F)121 mm (4.8 inches)72%extreme
October Weather23°C (74°F)183 mm (7.2 inches)74%extreme
November Weather24°C (75°F)392 mm (15.4 inches)78%extreme
December Weather24°C (75°F)423 mm (16.6 inches)78%extreme

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