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December Weather in Arauco, Argentina

Last updated: August 22, 2025

In December, the average temperature in Arauco, Argentina hovers around 25°C (77°F). Visitors can expect a range from a cool 13°C (55°F) to a sizzling 38°C (100°F). With an average precipitation of 36 mm (1.4 in) spread over 8 days, and humidity levels at 61%, it's a month that beautifully balances warmth and occasional refreshing showers.

December Temperature in Arauco

In December in Arauco, the average temperature is 25°C (77°F). Maximums can reach 38°C (100°F), while minimums can drop as low as 13°C (55°F). This climate makes it an enjoyable time for travelers to explore outdoor activities while being prepared for both warm and cooler moments.

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

The chart illustrates December temperature patterns in Arauco, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Arauco, December typically has an average temperature of 25°C (77°F), with highs reaching up to 38°C (100°F) and lows dropping to around 13°C (55°F).
JanFebMarAprMayJunJulAugSepOctNovDec787571676054545964707476
Data source: Temperature data for Arauco 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 Arauco

In Arauco in December, the precipitation amount is 36 mm (1.4 in) over a period of 8 days.

December Precipitation Trends in Arauco

The chart displays monthly precipitation patterns in Arauco, 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 Arauco, December typically receives around 36 mm (1.4 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec556342261662312152536
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Arauco

In Arauco in December humidity is 61%. With an average temperature of 25°C (77°F), this humidity feels like a warm embrace that can quickly lead to feelings of stickiness, making traveling a bit more tiring as you adapt to the climate while exploring.

December Average Humidity in Arauco

This chart illustrates the average monthly humidity levels in Arauco, 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 Arauco is approximately 61%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec63%66%68%83%82%72%57%42%51%47%58%62%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Arauco

In Arauco in December, the maximum UV index is 16, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, making it crucial to take protective measures. For detailed information, you can refer to the Hourly UV Index in Arauco.

Maximum UV Index Levels in Arauco for December

The chart shows the monthly maximum UV Index (UVI) for Arauco 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 Arauco typically reaches 16, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec16151310756710131516
Data source: Arauco 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 Arauco Compares to Other Months

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

This table compares monthly weather conditions in Arauco, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather25°C (78°F)55 mm (2.2 inches)63%extreme
February Weather24°C (75°F)63 mm (2.5 inches)66%extreme
March Weather22°C (72°F)42 mm (1.6 inches)68%extreme
April Weather19°C (67°F)26 mm (1.0 inches)83%very high
May Weather15°C (60°F)16 mm (0.6 inches)82%high
June Weather12°C (54°F)6 mm (0.2 inches)72%moderate
July Weather12°C (54°F)2 mm (0.1 inches)57%high
August Weather15°C (59°F)3 mm (0.1 inches)42%high
September Weather18°C (64°F)12 mm (0.5 inches)51%very high
October Weather21°C (70°F)15 mm (0.6 inches)47%extreme
November Weather23°C (74°F)25 mm (1.0 inches)58%extreme
December Weather25°C (77°F)36 mm (1.4 inches)61%extreme

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