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December Weather in Rosario de la Frontera, Argentina

Last updated: August 22, 2025

The average temperature in Rosario de la Frontera, Argentina during December is a pleasant 22°C (72°F). However, temperatures can vary significantly, with a minimum of 10°C (50°F) and a maximum reaching 36°C (97°F). Visitors should also prepare for the weather, as Rosario de la Frontera experiences approximately 168 mm (6.6 in) of precipitation over 16 days. The average humidity is a high 77%, adding to the overall experience of this vibrant destination.

December Temperature in Rosario de la Frontera

In December in Rosario de la Frontera, the average temperature is 22°C (72°F). Maximums can reach 36°C (97°F), while minimums can drop to as low as 10°C (50°F). This makes Rosario de la Frontera a great destination for travelers seeking warm weather with the option for cooler evenings.

December Weather in Rosario de la Frontera: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Rosario de la Frontera, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rosario de la Frontera, December typically has an average temperature of 22°C (72°F), with highs reaching up to 36°C (97°F) and lows dropping to around 10°C (50°F).
JanFebMarAprMayJunJulAugSepOctNovDec737067645752525663687072
Data source: Temperature data for Rosario de la Frontera 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 Rosario de la Frontera

In Rosario de la Frontera in December, the precipitation amount is 168 mm (6.6 in) spread over 16 days.

December Precipitation Trends in Rosario de la Frontera

The chart displays monthly precipitation patterns in Rosario de la Frontera, 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 Rosario de la Frontera, December typically receives around 168 mm (6.6 inches) of precipitation spread over approximately 16 days.
JanFebMarAprMayJunJulAugSepOctNovDec204211142994218961866104168
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Rosario de la Frontera

In Rosario de la Frontera in December humidity is 77%. With average temperature 22°C (72°F), this humidity feels like walking through a warm, damp embrace, making outdoor activities both refreshing and slightly uncomfortable for travelers unaccustomed to such conditions.

December Average Humidity in Rosario de la Frontera

This chart illustrates the average monthly humidity levels in Rosario de la Frontera, 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 Rosario de la Frontera is approximately 77%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%87%88%85%74%56%47%44%57%55%70%77%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Rosario de la Frontera

In Rosario de la Frontera 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 Rosario de la Frontera.

Maximum UV Index Levels in Rosario de la Frontera for December

The chart shows the monthly maximum UV Index (UVI) for Rosario de la Frontera 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 Rosario de la Frontera typically reaches 16, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec16151411867811141616
Data source: Rosario de la Frontera 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 Rosario de la Frontera Compares to Other Months

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

This table compares monthly weather conditions in Rosario de la Frontera, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather23°C (73°F)204 mm (8.0 inches)84%extreme
February Weather21°C (70°F)211 mm (8.3 inches)87%extreme
March Weather20°C (67°F)142 mm (5.6 inches)88%extreme
April Weather18°C (64°F)99 mm (3.9 inches)85%extreme
May Weather14°C (57°F)41 mm (1.6 inches)74%very high
June Weather11°C (52°F)18 mm (0.7 inches)56%high
July Weather11°C (52°F)9 mm (0.4 inches)47%high
August Weather14°C (57°F)6 mm (0.2 inches)44%very high
September Weather17°C (63°F)18 mm (0.7 inches)57%extreme
October Weather20°C (68°F)66 mm (2.6 inches)55%extreme
November Weather21°C (71°F)104 mm (4.1 inches)70%extreme
December Weather22°C (72°F)168 mm (6.6 inches)77%extreme

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