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December Weather in San Vicente, Argentina

Last updated: August 22, 2025

In San Vicente, Argentina, the average temperature in December is a pleasant 25°C (77°F). However, be prepared for a diverse climate: temperatures can dip to a cool 13°C (55°F) at night and soar up to a sizzling 38°C (100°F) during the day. Expect 140 mm (5.5 in) of precipitation spread over 13 days, accompanied by a humidity level of approximately 85%.

December Temperature in San Vicente

In December in San Vicente, the average temperature is 25°C (77°F). Maximums can reach 38°C (100°F), while minimums can drop as low as 13°C (55°F). This climate makes it an enjoyable time for travelers to explore outdoor activities while being prepared for both warm and cooler moments.

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

The chart illustrates December temperature patterns in San Vicente, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Vicente, December typically has an average temperature of 25°C (77°F), with highs reaching up to 38°C (100°F) and lows dropping to around 13°C (55°F).
JanFebMarAprMayJunJulAugSepOctNovDec777674706462616471717477
Data source: Temperature data for San Vicente 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 Vicente

In San Vicente in December, the total precipitation amount is 140 mm (5.5 in) over the course of 13 days.

December Precipitation Trends in San Vicente

The chart displays monthly precipitation patterns in San Vicente, 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 Vicente, December typically receives around 140 mm (5.5 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec166113125109198162657191192136140
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in San Vicente

In San Vicente in December, humidity is 85%. With an average temperature of 25°C (77°F), this humidity feels like a warm, heavy blanket wrapping around you, making every outdoor excursion feel both stifling and sticky, requiring frequent breaks in the shade to stay comfortable while exploring.

December Average Humidity in San Vicente

This chart illustrates the average monthly humidity levels in San Vicente, 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 Vicente is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec79%74%72%78%82%78%73%59%62%65%76%85%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in San Vicente

In San Vicente 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 Vicente, you can check here.

Maximum UV Index Levels in San Vicente for December

The chart shows the monthly maximum UV Index (UVI) for San Vicente 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 Vicente typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec15151310756810131414
Data source: San Vicente 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 Vicente Compares to Other Months

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

This table compares monthly weather conditions in San Vicente, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather25°C (77°F)166 mm (6.5 inches)79%extreme
February Weather24°C (76°F)113 mm (4.5 inches)74%extreme
March Weather23°C (74°F)125 mm (4.9 inches)72%extreme
April Weather21°C (70°F)109 mm (4.3 inches)78%very high
May Weather18°C (64°F)198 mm (7.8 inches)82%high
June Weather16°C (62°F)162 mm (6.4 inches)78%moderate
July Weather16°C (61°F)65 mm (2.5 inches)73%high
August Weather18°C (65°F)71 mm (2.8 inches)58%very high
September Weather21°C (71°F)90 mm (3.6 inches)62%very high
October Weather22°C (72°F)192 mm (7.6 inches)65%extreme
November Weather23°C (74°F)136 mm (5.3 inches)76%extreme
December Weather25°C (77°F)140 mm (5.5 inches)85%extreme

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