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December Weather in Rosario de Lerma, Argentina

Last updated: August 22, 2025

In Rosario de Lerma, Argentina, the average temperature in December hovers around 20°C (68°F), with lows dipping to 10°C (50°F) and highs reaching 31°C (88°F). This month sees a total precipitation of 156 mm (6.2 in) spread over 21 days, contributing to an average humidity of 77%. Perfect for experiencing the local scenery while staying comfortably cool!

December Temperature in Rosario de Lerma

In December in Rosario de Lerma, the average temperature is 20°C (68°F). Maximums can reach 31°C (88°F), and minimums can be as low as 10°C (50°F). This mild climate makes Rosario de Lerma an ideal destination for travelers seeking pleasant weather and outdoor activities during this time.

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

The chart illustrates December temperature patterns in Rosario de Lerma, 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 Lerma, December typically has an average temperature of 20°C (68°F), with highs reaching up to 31°C (88°F) and lows dropping to around 10°C (50°F).
JanFebMarAprMayJunJulAugSepOctNovDec696664615550505359646667
Data source: Temperature data for Rosario de Lerma 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 Lerma

In Rosario de Lerma in December, the total precipitation amount is 156 mm (6.2 in) spread over 21 days.

December Precipitation Trends in Rosario de Lerma

The chart displays monthly precipitation patterns in Rosario de Lerma, 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 Lerma, December typically receives around 156 mm (6.2 inches) of precipitation spread over approximately 21 days.
JanFebMarAprMayJunJulAugSepOctNovDec167189171143713126192876112156
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Rosario de Lerma

In Rosario de Lerma in December, humidity is 77%. With an average temperature of 20°C (68°F), this humidity feels like a warm, sticky embrace, making it essential for travelers to stay hydrated and take breaks in shaded areas to avoid feeling sluggish in the heat.

December Average Humidity in Rosario de Lerma

This chart illustrates the average monthly humidity levels in Rosario de Lerma, 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 Lerma 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 Lerma

In Rosario de Lerma in December, the maximum UV index reaches an alarming 17, which falls under the extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to stay protected. For more details on the hourly UV index in Rosario de Lerma, you can check Hourly UV Index in Rosario de Lerma.

Maximum UV Index Levels in Rosario de Lerma for December

The chart shows the monthly maximum UV Index (UVI) for Rosario de Lerma 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 Lerma typically reaches 17, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec171615129681012151617
Data source: Rosario de Lerma 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 Lerma Compares to Other Months

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

This table compares monthly weather conditions in Rosario de Lerma, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather20°C (69°F)167 mm (6.6 inches)84%extreme
February Weather19°C (67°F)189 mm (7.4 inches)87%extreme
March Weather18°C (64°F)171 mm (6.7 inches)88%extreme
April Weather16°C (61°F)143 mm (5.6 inches)85%extreme
May Weather13°C (55°F)71 mm (2.8 inches)74%very high
June Weather10°C (50°F)31 mm (1.2 inches)56%high
July Weather10°C (50°F)26 mm (1.0 inches)47%very high
August Weather12°C (53°F)18 mm (0.7 inches)44%very high
September Weather15°C (59°F)28 mm (1.1 inches)57%extreme
October Weather18°C (64°F)76 mm (3.0 inches)55%extreme
November Weather19°C (66°F)112 mm (4.4 inches)70%extreme
December Weather20°C (68°F)156 mm (6.2 inches)77%extreme

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