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December Weather in Sao Carlos, Brazil

Last updated: August 22, 2025

In December, the average temperature in Sao Carlos, Brazil is a warm 24°C (75°F), with minimums dipping to 14°C (57°F) and maximums soaring to 35°C (95°F). Expect about 169 mm (6.6 in) of precipitation spread over 19 days, resulting in an average humidity of 83% that adds a tropical feel to the air.

December Temperature in Sao Carlos

In December in Sao Carlos, the average temperature is 24°C (75°F). Maximums can reach 35°C (95°F), while minimums can drop to as low as 14°C (57°F). This pleasant climate makes Sao Carlos an ideal travel destination for those looking to enjoy warm weather with comfortable evenings.

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

The chart illustrates December temperature patterns in Sao Carlos, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sao Carlos, December typically has an average temperature of 24°C (75°F), with highs reaching up to 35°C (95°F) and lows dropping to around 14°C (57°F).
JanFebMarAprMayJunJulAugSepOctNovDec757575726867666875757475
Data source: Temperature data for Sao 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 Sao Carlos

In Sao Carlos in December, the precipitation amount is 169 mm (6.6 in) over the course of 19 days.

December Precipitation Trends in Sao Carlos

The chart displays monthly precipitation patterns in Sao 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 Sao Carlos, December typically receives around 169 mm (6.6 inches) of precipitation spread over approximately 19 days.
JanFebMarAprMayJunJulAugSepOctNovDec1801569950361493133107134169
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Sao Carlos

In Sao Carlos in December, humidity is 83%. With an average temperature of 24°C (75°F), this humidity feels like a warm blanket enveloping you, which can be quite stifling for traveling. You may find yourself frequently seeking shade or air conditioning, and it's wise to stay hydrated while exploring.

December Average Humidity in Sao Carlos

This chart illustrates the average monthly humidity levels in Sao 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 Sao Carlos is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%87%86%82%76%71%68%59%54%50%74%83%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Sao Carlos

In Sao Carlos 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 Sao Carlos.

Maximum UV Index Levels in Sao Carlos for December

The chart shows the monthly maximum UV Index (UVI) for Sao 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 Sao Carlos typically reaches 16, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151613118781012131416
Data source: Sao 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 Sao Carlos Compares to Other Months

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

This table compares monthly weather conditions in Sao Carlos, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather24°C (76°F)180 mm (7.1 inches)88%extreme
February Weather24°C (76°F)156 mm (6.1 inches)87%extreme
March Weather24°C (76°F)99 mm (3.9 inches)86%extreme
April Weather22°C (73°F)50 mm (2.0 inches)82%extreme
May Weather20°C (68°F)36 mm (1.4 inches)76%very high
June Weather20°C (68°F)14 mm (0.5 inches)71%high
July Weather19°C (66°F)9 mm (0.3 inches)67%very high
August Weather20°C (68°F)31 mm (1.2 inches)59%very high
September Weather24°C (75°F)33 mm (1.3 inches)54%extreme
October Weather24°C (75°F)107 mm (4.2 inches)50%extreme
November Weather23°C (74°F)134 mm (5.3 inches)74%extreme
December Weather24°C (75°F)169 mm (6.6 inches)83%extreme

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