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December Weather in Siabu, Indonesia

Last updated: August 23, 2025

In Siabu, Indonesia, the average temperature in December is a pleasant 24°C (75°F). Expect comfortable conditions with a minimum of 18°C (64°F) and soaring to a maximum of 31°C (88°F). However, be prepared for rain—with 315 mm (12.4 in) of precipitation expected over 27 days. The average humidity is a tropical 85%, adding to that warm atmosphere.

December Temperature in Siabu

In December in Siabu, the average temperature is 24°C (75°F). Maximum temperatures can reach 31°C (88°F), while minimums can drop as low as 18°C (64°F). This pleasant climate makes Siabu an ideal destination for outdoor activities and sightseeing.

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

The chart illustrates December temperature patterns in Siabu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Siabu, 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 18°C (64°F).
JanFebMarAprMayJunJulAugSepOctNovDec747575757675757574747475
Data source: Temperature data for Siabu 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 Siabu

In Siabu in December, the total precipitation amount reaches 315 mm (12.4 in) over the course of 27 days.

December Precipitation Trends in Siabu

The chart displays monthly precipitation patterns in Siabu, 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 Siabu, December typically receives around 315 mm (12.4 inches) of precipitation spread over approximately 27 days.
JanFebMarAprMayJunJulAugSepOctNovDec168166251303270179191214280315368315
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Siabu

In Siabu in December humidity is 85%. With an average temperature of 24°C (75°F), this humidity feels like walking through a warm, heavy blanket, making travel feel sluggish and draining as you navigate through the thick, muggy air.

December Average Humidity in Siabu

This chart illustrates the average monthly humidity levels in Siabu, 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 Siabu is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec81%75%79%80%83%84%83%86%87%89%87%85%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Siabu

In Siabu 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 Siabu.

Maximum UV Index Levels in Siabu for December

The chart shows the monthly maximum UV Index (UVI) for Siabu 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 Siabu typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151516161513131415151413
Data source: Siabu 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 Siabu Compares to Other Months

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

This table compares monthly weather conditions in Siabu, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather24°C (75°F)168 mm (6.6 inches)81%extreme
February Weather24°C (76°F)166 mm (6.5 inches)75%extreme
March Weather24°C (76°F)251 mm (9.9 inches)78%extreme
April Weather24°C (76°F)303 mm (11.9 inches)80%extreme
May Weather24°C (76°F)270 mm (10.6 inches)83%extreme
June Weather24°C (76°F)179 mm (7.1 inches)84%extreme
July Weather24°C (75°F)191 mm (7.5 inches)83%extreme
August Weather24°C (75°F)214 mm (8.4 inches)86%extreme
September Weather24°C (75°F)280 mm (11.0 inches)87%extreme
October Weather24°C (75°F)315 mm (12.4 inches)88%extreme
November Weather23°C (74°F)368 mm (14.5 inches)87%extreme
December Weather24°C (75°F)315 mm (12.4 inches)85%extreme

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