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December Weather in Chacabuco, Argentina

Last updated: August 22, 2025

In Chacabuco, Argentina, the average temperature during December is a pleasant 23°C (73°F). Expect a minimum of 7°C (45°F) and a maximum soaring up to 38°C (100°F). Be prepared for 86 mm (3.4 in) of precipitation spread across 9 days, and enjoy moderate humidity levels at 48%.

December Temperature in Chacabuco

In December in Chacabuco, the average temperature is 23°C (73°F). Maximums can reach 38°C (100°F), and minimums can be as low as 7°C (45°F). This variation makes it essential for travelers to pack both lightweight clothing for the warm days and warmer layers for the cooler nights.

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

The chart illustrates December temperature patterns in Chacabuco, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Chacabuco, December typically has an average temperature of 23°C (73°F), with highs reaching up to 38°C (100°F) and lows dropping to around 7°C (45°F).
JanFebMarAprMayJunJulAugSepOctNovDec757268645651495357626873
Data source: Temperature data for Chacabuco 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 Chacabuco

In Chacabuco in December, the precipitation amount is 86 mm (3.4 in), falling over the course of 9 days.

December Precipitation Trends in Chacabuco

The chart displays monthly precipitation patterns in Chacabuco, 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 Chacabuco, December typically receives around 86 mm (3.4 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec8265791178235313783889386
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Chacabuco

In Chacabuco in December humidity is 48%. With an average temperature of 23°C (73°F), this humidity feels like a pleasant embrace, making it comfortable for traveling while allowing you to enjoy outdoor activities without feeling overly sticky or weighed down.

December Average Humidity in Chacabuco

This chart illustrates the average monthly humidity levels in Chacabuco, 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 Chacabuco is approximately 48%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec46%54%64%76%81%76%65%59%66%57%54%48%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Chacabuco

In Chacabuco 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 Chacabuco, you can check here.

Maximum UV Index Levels in Chacabuco for December

The chart shows the monthly maximum UV Index (UVI) for Chacabuco 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 Chacabuco typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141311753468101314
Data source: Chacabuco 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 Chacabuco Compares to Other Months

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

This table compares monthly weather conditions in Chacabuco, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather24°C (75°F)82 mm (3.2 inches)46%extreme
February Weather22°C (72°F)65 mm (2.6 inches)54%extreme
March Weather20°C (69°F)79 mm (3.1 inches)64%extreme
April Weather18°C (64°F)117 mm (4.6 inches)76%high
May Weather13°C (56°F)82 mm (3.2 inches)81%moderate
June Weather11°C (51°F)35 mm (1.4 inches)76%moderate
July Weather10°C (49°F)31 mm (1.2 inches)65%moderate
August Weather11°C (53°F)37 mm (1.5 inches)59%high
September Weather14°C (57°F)83 mm (3.3 inches)66%very high
October Weather17°C (62°F)88 mm (3.5 inches)57%very high
November Weather20°C (69°F)93 mm (3.7 inches)54%extreme
December Weather23°C (73°F)86 mm (3.4 inches)48%extreme

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