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December Weather in San Carlos, Chile

Last updated: August 22, 2025

In December, the average temperature in San Carlos, Chile is a comfortable 19°C (66°F). Temperatures can vary significantly, with a minimum of 7°C (44°F) and a maximum reaching up to 33°C (92°F). Expect around 7 mm (0.3 in) of precipitation over 2 days, with an average humidity level of 42%. Perfect for enjoying the mild climate!

December Temperature in San Carlos

In December in San Carlos, the average temperature is 19°C (66°F), with maximums reaching up to 33°C (92°F) and minimums dropping as low as 7°C (44°F). This mild climate makes it an ideal time for outdoor adventures and sightseeing.

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

The chart illustrates December temperature patterns in San Carlos, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Carlos, December typically has an average temperature of 19°C (66°F), with highs reaching up to 33°C (92°F) and lows dropping to around 7°C (44°F).
JanFebMarAprMayJunJulAugSepOctNovDec686863575148474852556166
Data source: Temperature data for San Carlos 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 Carlos

In San Carlos in December, the precipitation amount is 7 mm (0.3 in) over a period of 2 days.

December Precipitation Trends in San Carlos

The chart displays monthly precipitation patterns in San Carlos, 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 Carlos, December typically receives around 7 mm (0.3 inches) of precipitation spread over approximately 2 days.
JanFebMarAprMayJunJulAugSepOctNovDec20919461312561351538568297
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in San Carlos

In San Carlos in December, humidity is 42%. With an average temperature of 19°C (66°F), this humidity feels like a refreshing embrace, making it pleasant for traveling as long as you stay hydrated and enjoy the comfortable warmth while exploring.

December Average Humidity in San Carlos

This chart illustrates the average monthly humidity levels in San Carlos, 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 Carlos is approximately 42%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec41%41%48%60%79%83%86%83%68%64%49%42%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in San Carlos

In San Carlos 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 Carlos, you can check here.

Maximum UV Index Levels in San Carlos for December

The chart shows the monthly maximum UV Index (UVI) for San Carlos 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 Carlos typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141310753457101314
Data source: San Carlos 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 Carlos Compares to Other Months

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

This table compares monthly weather conditions in San Carlos, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather20°C (68°F)20 mm (0.8 inches)41%extreme
February Weather20°C (68°F)9 mm (0.4 inches)41%extreme
March Weather17°C (63°F)19 mm (0.7 inches)48%very high
April Weather14°C (57°F)46 mm (1.8 inches)60%high
May Weather10°C (51°F)131 mm (5.2 inches)79%moderate
June Weather9°C (48°F)256 mm (10.1 inches)82%moderate
July Weather8°C (47°F)135 mm (5.3 inches)85%moderate
August Weather9°C (48°F)153 mm (6.0 inches)83%moderate
September Weather11°C (52°F)85 mm (3.3 inches)68%high
October Weather13°C (55°F)68 mm (2.7 inches)64%very high
November Weather16°C (61°F)29 mm (1.2 inches)49%extreme
December Weather19°C (66°F)7 mm (0.3 inches)42%extreme

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