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December Weather in Rio Colorado, Argentina

Last updated: August 22, 2025

In December, the average temperature in Rio Colorado, Argentina hovers around a comfortable 22°C (73°F). However, temperatures can vary significantly, dropping to a chilly 6°C (43°F) at night and soaring to a blistering 38°C (100°F) during the day. Expect some rain, with 30 mm (1.2 in) of precipitation spread over about 5 days. The average humidity sits at a pleasant 41%, making for a delightful weather experience.

December Temperature in Rio Colorado

In December in Rio Colorado, the average temperature is 22°C (73°F). Maximums can reach up to 38°C (100°F), and minimums can dip as low as 6°C (43°F). This climate makes Rio Colorado a perfect destination for travelers looking to enjoy both warm and cooler weather during their visit.

December Weather in Rio Colorado: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Rio Colorado, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rio Colorado, December typically has an average temperature of 22°C (73°F), with highs reaching up to 38°C (100°F) and lows dropping to around 6°C (43°F).
JanFebMarAprMayJunJulAugSepOctNovDec757267615247454954606672
Data source: Temperature data for Rio Colorado 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 Rio Colorado

In Rio Colorado in December, the precipitation amount is 30 mm (1.2 in) over the course of 5 days.

December Precipitation Trends in Rio Colorado

The chart displays monthly precipitation patterns in Rio Colorado, 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 Rio Colorado, December typically receives around 30 mm (1.2 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec164639493829291431416630
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Rio Colorado

In Rio Colorado in December humidity is 41%. With an average temperature of 22°C (73°F), this humidity feels like a comfortable embrace, making it ideal for exploring the sights and enjoying leisurely outdoor activities.

December Average Humidity in Rio Colorado

This chart illustrates the average monthly humidity levels in Rio Colorado, 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 Rio Colorado is approximately 41%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec46%52%62%70%72%68%66%60%59%49%45%41%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Rio Colorado

In Rio Colorado 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 Rio Colorado.

Maximum UV Index Levels in Rio Colorado for December

The chart shows the monthly maximum UV Index (UVI) for Rio Colorado 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 Rio Colorado typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141210643357101213
Data source: Rio Colorado 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 Rio Colorado Compares to Other Months

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

This table compares monthly weather conditions in Rio Colorado, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather24°C (76°F)16 mm (0.6 inches)46%extreme
February Weather22°C (73°F)46 mm (1.8 inches)52%extreme
March Weather20°C (68°F)39 mm (1.5 inches)61%very high
April Weather16°C (61°F)49 mm (1.9 inches)70%high
May Weather11°C (52°F)38 mm (1.5 inches)72%moderate
June Weather8°C (47°F)29 mm (1.1 inches)68%moderate
July Weather7°C (45°F)29 mm (1.1 inches)66%moderate
August Weather10°C (49°F)14 mm (0.5 inches)60%moderate
September Weather12°C (55°F)31 mm (1.2 inches)59%high
October Weather15°C (60°F)41 mm (1.6 inches)49%very high
November Weather19°C (66°F)66 mm (2.6 inches)45%extreme
December Weather22°C (73°F)30 mm (1.2 inches)41%extreme

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