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December Weather in Serra, Brazil

Last updated: August 22, 2025

In Serra, Brazil, the average temperature in December hovers around 25°C (77°F), making it quite pleasant. Expect a minimum of 21°C (70°F) and a cozy maximum of 29°C (85°F). The month is accompanied by 146 mm (5.8 in) of precipitation spread over 14 days, leading to an average humidity of 72%. Perfect weather for enjoying the lush scenery!

December Temperature in Serra

In December in Serra, the average temperature is 25°C (77°F). The maximum can reach 29°C (85°F), and the minimum can be as low as 21°C (70°F). This pleasant weather makes it an ideal time for outdoor activities and exploration.

December Weather in Serra: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Serra, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Serra, December typically has an average temperature of 25°C (77°F), with highs reaching up to 29°C (85°F) and lows dropping to around 21°C (70°F).
JanFebMarAprMayJunJulAugSepOctNovDec797979777473717173757577
Data source: Temperature data for Serra 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 Serra

In Serra in December, the total precipitation amount is 146 mm (5.8 in) spread out over 14 days.

December Precipitation Trends in Serra

The chart displays monthly precipitation patterns in Serra, 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 Serra, December typically receives around 146 mm (5.8 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec64134991018742365556117183147
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Serra

In Serra in December, humidity is 72%. With an average temperature of 25°C (77°F), this humidity feels like a warm embrace that clings to your skin, making outdoor exploration both vibrant and a bit taxing as you sweat slightly more and seek shade often while enjoying the scenery.

December Average Humidity in Serra

This chart illustrates the average monthly humidity levels in Serra, 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 Serra is approximately 72%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%85%86%85%82%81%79%75%72%67%69%72%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Serra

In Serra in December, the maximum UV index reaches an alarming 15, which falls into the extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take precautions. For detailed information, you can check the Hourly UV Index in Serra.

Maximum UV Index Levels in Serra for December

The chart shows the monthly maximum UV Index (UVI) for Serra 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 Serra typically reaches 15, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151413118781012131415
Data source: Serra 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 Serra Compares to Other Months

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

This table compares monthly weather conditions in Serra, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather26°C (79°F)64 mm (2.5 inches)80%extreme
February Weather26°C (79°F)134 mm (5.3 inches)85%extreme
March Weather26°C (79°F)99 mm (3.9 inches)86%extreme
April Weather25°C (77°F)101 mm (4.0 inches)85%extreme
May Weather23°C (74°F)87 mm (3.4 inches)82%very high
June Weather23°C (73°F)42 mm (1.6 inches)81%high
July Weather22°C (71°F)36 mm (1.4 inches)79%very high
August Weather22°C (71°F)55 mm (2.2 inches)75%very high
September Weather23°C (73°F)56 mm (2.2 inches)72%extreme
October Weather24°C (75°F)117 mm (4.6 inches)66%extreme
November Weather24°C (75°F)183 mm (7.2 inches)69%extreme
December Weather25°C (77°F)146 mm (5.8 inches)72%extreme

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