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December Weather in Piracaia, Brazil

Last updated: August 22, 2025

In December, the average temperature in Piracaia, Brazil hovers around 21°C (70°F), with daily variations ranging from a cool 11°C (52°F) to a warm 31°C (89°F). Expect a fair amount of rainfall, with 226 mm (8.9 in) of precipitation spread across 23 days. Additionally, the average humidity is a high 80%, contributing to a richly atmospheric environment.

December Temperature in Piracaia

In December in Piracaia, the average temperature is 21°C (70°F), with maximums reaching 31°C (89°F) and minimums dropping as low as 11°C (52°F). This pleasant weather makes it a perfect time for travelers to explore and enjoy outdoor activities.

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

The chart illustrates December temperature patterns in Piracaia, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Piracaia, December typically has an average temperature of 21°C (70°F), with highs reaching up to 31°C (89°F) and lows dropping to around 11°C (52°F).
JanFebMarAprMayJunJulAugSepOctNovDec727170666262596167686870
Data source: Temperature data for Piracaia 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 Piracaia

In Piracaia in December, the precipitation amount is 226 mm (8.9 in) over the course of 23 days.

December Precipitation Trends in Piracaia

The chart displays monthly precipitation patterns in Piracaia, 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 Piracaia, December typically receives around 226 mm (8.9 inches) of precipitation spread over approximately 23 days.
JanFebMarAprMayJunJulAugSepOctNovDec233207184645333186057160161226
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Piracaia

In Piracaia in December humidity is 80%. With an average temperature of 21°C (70°F), this humidity feels like a warm, enveloping blanket that can make even short walks feel draining, urging travelers to seek shade or a cool drink frequently.

December Average Humidity in Piracaia

This chart illustrates the average monthly humidity levels in Piracaia, 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 Piracaia is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%88%88%84%79%77%72%65%58%50%75%80%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Piracaia

In Piracaia 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 Piracaia.

Maximum UV Index Levels in Piracaia for December

The chart shows the monthly maximum UV Index (UVI) for Piracaia 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 Piracaia typically reaches 16, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec161613118781012141516
Data source: Piracaia 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 Piracaia Compares to Other Months

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

This table compares monthly weather conditions in Piracaia, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather22°C (72°F)233 mm (9.2 inches)88%extreme
February Weather21°C (71°F)207 mm (8.2 inches)88%extreme
March Weather21°C (71°F)184 mm (7.3 inches)87%extreme
April Weather19°C (67°F)64 mm (2.5 inches)84%extreme
May Weather17°C (63°F)53 mm (2.1 inches)79%very high
June Weather17°C (62°F)33 mm (1.3 inches)77%high
July Weather15°C (60°F)18 mm (0.7 inches)72%very high
August Weather16°C (61°F)60 mm (2.4 inches)65%very high
September Weather20°C (68°F)57 mm (2.2 inches)58%extreme
October Weather20°C (68°F)160 mm (6.3 inches)50%extreme
November Weather20°C (68°F)161 mm (6.4 inches)75%extreme
December Weather21°C (70°F)226 mm (8.9 inches)80%extreme

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