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December Weather in Caseros, Argentina

Last updated: August 22, 2025

In December, the average temperature in Caseros, Argentina is a pleasant 24°C (75°F). However, temperatures can range significantly, dipping to a minimum of 9°C (48°F) and soaring up to a maximum of 39°C (103°F). Expect moderate precipitation, with an average of 128 mm (5.0 in) over 5 days, while the average humidity holds steady at 63%.

December Temperature in Caseros

In December in Caseros, the average temperature is 24°C (75°F). Maximum temperatures can reach 39°C (103°F), while minimums can drop to as low as 9°C (48°F). Be sure to pack accordingly for a range of weather conditions during your travels!

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

The chart illustrates December temperature patterns in Caseros, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Caseros, December typically has an average temperature of 24°C (75°F), with highs reaching up to 39°C (103°F) and lows dropping to around 9°C (48°F).
JanFebMarAprMayJunJulAugSepOctNovDec777571675954535660657275
Data source: Temperature data for Caseros 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 Caseros

In Caseros in December, the total precipitation amount is 128 mm (5.0 in) over a span of 5 days.

December Precipitation Trends in Caseros

The chart displays monthly precipitation patterns in Caseros, 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 Caseros, December typically receives around 128 mm (5.0 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec1251049594977259819011272128
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Caseros

In Caseros in December humidity is 63%. With an average temperature of 24°C (75°F), this humidity feels like a warm embrace, making travel both enjoyable and slightly sticky, encouraging visitors to explore the outdoors while seeking shade intermittently.

December Average Humidity in Caseros

This chart illustrates the average monthly humidity levels in Caseros, 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 Caseros is approximately 63%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec54%61%69%79%85%82%69%65%70%63%61%63%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Caseros

In Caseros 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 Caseros, you can check here.

Maximum UV Index Levels in Caseros for December

The chart shows the monthly maximum UV Index (UVI) for Caseros 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 Caseros typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151311854468111314
Data source: Caseros 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 Caseros Compares to Other Months

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

This table compares monthly weather conditions in Caseros, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather25°C (78°F)125 mm (4.9 inches)54%extreme
February Weather24°C (75°F)103 mm (4.1 inches)61%extreme
March Weather22°C (71°F)95 mm (3.7 inches)69%extreme
April Weather19°C (67°F)94 mm (3.7 inches)79%very high
May Weather15°C (59°F)97 mm (3.8 inches)85%moderate
June Weather12°C (55°F)72 mm (2.9 inches)82%moderate
July Weather11°C (53°F)59 mm (2.3 inches)69%moderate
August Weather13°C (56°F)81 mm (3.2 inches)65%high
September Weather16°C (61°F)90 mm (3.5 inches)70%very high
October Weather18°C (65°F)112 mm (4.4 inches)63%extreme
November Weather22°C (72°F)71 mm (2.8 inches)60%extreme
December Weather24°C (75°F)128 mm (5.0 inches)63%extreme

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