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December Weather in Rio Piracicaba, Brazil

Last updated: August 22, 2025

In December, the average temperature in Rio Piracicaba, Brazil hovers around 23°C (73°F). You can expect a comfortable range, with minimums dipping to 14°C (57°F) and maximums rising to 33°C (91°F). Be prepared for some rain, as 212 mm (8.3 in) of precipitation typically falls over 21 days, contributing to an average humidity of 68%.

December Temperature in Rio Piracicaba

In December in Rio Piracicaba, the average temperature is 23°C (73°F), with maximums reaching up to 33°C (91°F) and minimums dropping as low as 14°C (57°F). This pleasant climate makes Rio Piracicaba an ideal destination for travelers seeking a comfortable and enjoyable getaway.

December Weather in Rio Piracicaba: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Rio Piracicaba, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rio Piracicaba, December typically has an average temperature of 23°C (73°F), with highs reaching up to 33°C (91°F) and lows dropping to around 14°C (57°F).
JanFebMarAprMayJunJulAugSepOctNovDec757373706665636570727173
Data source: Temperature data for Rio Piracicaba 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 Rio Piracicaba

In Rio Piracicaba in December, the precipitation amount is 212 mm (8.3 in) over the course of 21 days.

December Precipitation Trends in Rio Piracicaba

The chart displays monthly precipitation patterns in Rio Piracicaba, 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 Rio Piracicaba, December typically receives around 212 mm (8.3 inches) of precipitation spread over approximately 21 days.
JanFebMarAprMayJunJulAugSepOctNovDec13521916677431172331144208212
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Rio Piracicaba

In Rio Piracicaba in December humidity is 68%. With an average temperature of 23°C (73°F), this humidity feels like a soft blanket wrapping around you, making every step outside feel a bit heavier, but offering a warm embrace that encourages leisurely exploration and a relaxed pace for travel.

December Average Humidity in Rio Piracicaba

This chart illustrates the average monthly humidity levels in Rio Piracicaba, 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 Rio Piracicaba is approximately 68%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec83%85%88%86%82%82%77%72%63%48%61%68%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Rio Piracicaba

In Rio Piracicaba 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 Rio Piracicaba.

Maximum UV Index Levels in Rio Piracicaba for December

The chart shows the monthly maximum UV Index (UVI) for Rio Piracicaba 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 Rio Piracicaba typically reaches 16, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec171514129781012141516
Data source: Rio Piracicaba 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 Rio Piracicaba Compares to Other Months

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

This table compares monthly weather conditions in Rio Piracicaba, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather24°C (75°F)135 mm (5.3 inches)83%extreme
February Weather23°C (73°F)219 mm (8.6 inches)85%extreme
March Weather23°C (73°F)166 mm (6.5 inches)87%extreme
April Weather21°C (70°F)77 mm (3.0 inches)86%extreme
May Weather19°C (67°F)43 mm (1.7 inches)82%very high
June Weather18°C (65°F)11 mm (0.4 inches)82%high
July Weather17°C (64°F)7 mm (0.3 inches)77%very high
August Weather18°C (65°F)23 mm (0.9 inches)72%very high
September Weather21°C (70°F)31 mm (1.2 inches)63%extreme
October Weather22°C (72°F)144 mm (5.7 inches)48%extreme
November Weather22°C (71°F)208 mm (8.2 inches)61%extreme
December Weather23°C (73°F)212 mm (8.3 inches)68%extreme

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