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December Weather in San Basilio, Argentina

Last updated: August 22, 2025

In San Basilio, Argentina, the average temperature in December is a pleasant 24°C (75°F). Expect a range from a cool 11°C (51°F) at night to the warmth of 40°C (104°F) during the day. With an average precipitation of 65 mm (2.6 in) spread over 8 days, you'll want to keep an umbrella handy. The average humidity sits at a comfortable 47%, making it an ideal time to explore the area!

December Temperature in San Basilio

In December in San Basilio, the average temperature is 24°C (75°F). Maximums can reach 40°C (104°F), and minimums can drop as low as 11°C (51°F). It's advisable to pack both light clothing for the warmth and a sweater for the cooler evenings while traveling.

December Weather in San Basilio: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in San Basilio, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Basilio, December typically has an average temperature of 24°C (75°F), with highs reaching up to 40°C (104°F) and lows dropping to around 11°C (51°F).
JanFebMarAprMayJunJulAugSepOctNovDec757369655650495459647175
Data source: Temperature data for San Basilio 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 San Basilio

In San Basilio in December, the total precipitation amount is 65 mm (2.6 in) spread over the course of 8 days.

December Precipitation Trends in San Basilio

The chart displays monthly precipitation patterns in San Basilio, 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 San Basilio, December typically receives around 65 mm (2.6 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec9863928544189534478065
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in San Basilio

In San Basilio in December, humidity is 47%. With an average temperature of 24°C (75°F), this humidity feels like a refreshing embrace, making outdoor activities enjoyable but also reminding travelers to stay hydrated and take breaks in the shade.

December Average Humidity in San Basilio

This chart illustrates the average monthly humidity levels in San Basilio, 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 San Basilio is approximately 47%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec45%52%63%74%78%71%57%53%56%50%54%47%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in San Basilio

In San Basilio 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 San Basilio, you can check here.

Maximum UV Index Levels in San Basilio for December

The chart shows the monthly maximum UV Index (UVI) for San Basilio 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 San Basilio typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141311854468111414
Data source: San Basilio 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 San Basilio Compares to Other Months

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

This table compares monthly weather conditions in San Basilio, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather24°C (76°F)98 mm (3.9 inches)45%extreme
February Weather23°C (73°F)63 mm (2.5 inches)52%extreme
March Weather21°C (70°F)92 mm (3.6 inches)63%extreme
April Weather18°C (65°F)84 mm (3.3 inches)74%very high
May Weather14°C (57°F)44 mm (1.7 inches)78%moderate
June Weather10°C (50°F)18 mm (0.7 inches)71%moderate
July Weather9°C (49°F)9 mm (0.4 inches)57%moderate
August Weather12°C (54°F)5 mm (0.2 inches)53%high
September Weather15°C (59°F)34 mm (1.3 inches)56%very high
October Weather18°C (64°F)47 mm (1.8 inches)50%extreme
November Weather21°C (71°F)80 mm (3.2 inches)54%extreme
December Weather24°C (75°F)65 mm (2.6 inches)47%extreme

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