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December Weather in Sao Bernardo, Brazil

Last updated: August 22, 2025

In December, the average temperature in Sao Bernardo, Brazil hovers around 29°C (84°F), with daily highs reaching up to 38°C (100°F) and lows dipping to 22°C (72°F). Expect moderate rainfall, averaging 61 mm (2.4 in) over 10 days, accompanied by a high humidity level of 78% to truly embrace that tropical feel.

December Temperature in Sao Bernardo

In December in Sao Bernardo, the average temperature is 29°C (84°F). Maximums can reach 38°C (100°F) and minimums can be as low as 22°C (72°F). Be sure to pack light clothing and stay hydrated while enjoying the warm weather!

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

The chart illustrates December temperature patterns in Sao Bernardo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sao Bernardo, December typically has an average temperature of 29°C (84°F), with highs reaching up to 38°C (100°F) and lows dropping to around 22°C (72°F).
JanFebMarAprMayJunJulAugSepOctNovDec818079808181818384848483
Data source: Temperature data for Sao Bernardo 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 Bernardo

In Sao Bernardo in December, the precipitation amount is 61 mm (2.4 in) over a span of 10 days.

December Precipitation Trends in Sao Bernardo

The chart displays monthly precipitation patterns in Sao Bernardo, 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 Bernardo, December typically receives around 61 mm (2.4 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec166296366310190453344103361
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Sao Bernardo

In Sao Bernardo in December humidity is 78%. With an average temperature of 29°C (84°F), this humidity feels like a thick blanket enveloping you, making travel feel sticky and exhausting as you navigate through the heat.

December Average Humidity in Sao Bernardo

This chart illustrates the average monthly humidity levels in Sao Bernardo, 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 Bernardo is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%90%90%92%89%79%64%55%51%53%60%78%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Sao Bernardo

In Sao Bernardo in December, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in Sao Bernardo.

Maximum UV Index Levels in Sao Bernardo for December

The chart shows the monthly maximum UV Index (UVI) for Sao Bernardo 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 Bernardo typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141416151311111313121313
Data source: Sao Bernardo 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 Bernardo Compares to Other Months

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

This table compares monthly weather conditions in Sao Bernardo, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather27°C (81°F)166 mm (6.6 inches)89%extreme
February Weather27°C (80°F)296 mm (11.6 inches)90%extreme
March Weather26°C (80°F)366 mm (14.4 inches)90%extreme
April Weather27°C (80°F)310 mm (12.2 inches)92%extreme
May Weather27°C (81°F)190 mm (7.5 inches)89%extreme
June Weather27°C (81°F)45 mm (1.8 inches)79%extreme
July Weather27°C (82°F)33 mm (1.3 inches)64%extreme
August Weather28°C (83°F)3 mm (0.1 inches)55%extreme
September Weather29°C (84°F)4 mm (0.1 inches)51%extreme
October Weather29°C (85°F)10 mm (0.4 inches)53%extreme
November Weather29°C (84°F)33 mm (1.3 inches)60%extreme
December Weather29°C (84°F)61 mm (2.4 inches)78%extreme

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