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December Weather in Rio Claro, Brazil

Last updated: August 22, 2025

In Rio Claro, Brazil, the average temperature in December hovers around 23°C (74°F). Visitors can expect a range, with minimum temperatures dipping to 14°C (57°F) and soaring up to 33°C (93°F). During this month, the region experiences an average precipitation of 225 mm (8.8 in) across 23 days, contributing to a humidity level of 75%. Prepare accordingly for a warm and occasionally wet experience!

December Temperature in Rio Claro

In December in Rio Claro, the average temperature is 23°C (74°F), with maximums reaching 33°C (93°F) and minimums dropping as low as 14°C (57°F). This pleasant climate makes Rio Claro an ideal destination for travelers seeking a comfortable getaway.

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

The chart illustrates December temperature patterns in Rio Claro, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rio Claro, December typically has an average temperature of 23°C (74°F), with highs reaching up to 33°C (93°F) and lows dropping to around 14°C (57°F).
JanFebMarAprMayJunJulAugSepOctNovDec767575716767646570717173
Data source: Temperature data for Rio Claro 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 Claro

In Rio Claro, in December, the precipitation amount is 225 mm (8.8 in) over a span of 23 days.

December Precipitation Trends in Rio Claro

The chart displays monthly precipitation patterns in Rio Claro, 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 Claro, December typically receives around 225 mm (8.8 inches) of precipitation spread over approximately 23 days.
JanFebMarAprMayJunJulAugSepOctNovDec238211202956835296558127174225
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Rio Claro

In Rio Claro in December, humidity is 75%. With an average temperature of 23°C (74°F), this humidity feels like a warm, heavy blanket wrapping around you, making it feel more sweltering than it actually is, which can be quite uncomfortable for traveling.

December Average Humidity in Rio Claro

This chart illustrates the average monthly humidity levels in Rio Claro, 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 Claro is approximately 75%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%85%86%83%81%80%76%73%68%61%72%75%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Rio Claro

In Rio Claro 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 Rio Claro.

Maximum UV Index Levels in Rio Claro for December

The chart shows the monthly maximum UV Index (UVI) for Rio Claro 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 Claro typically reaches 15, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec16151311867912131415
Data source: Rio Claro 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 Claro Compares to Other Months

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

This table compares monthly weather conditions in Rio Claro, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather25°C (77°F)238 mm (9.4 inches)85%extreme
February Weather24°C (75°F)211 mm (8.3 inches)85%extreme
March Weather24°C (75°F)202 mm (7.9 inches)86%extreme
April Weather22°C (71°F)95 mm (3.7 inches)83%extreme
May Weather20°C (68°F)68 mm (2.7 inches)81%very high
June Weather19°C (67°F)35 mm (1.4 inches)80%high
July Weather18°C (65°F)29 mm (1.1 inches)76%high
August Weather18°C (66°F)65 mm (2.6 inches)73%very high
September Weather21°C (70°F)58 mm (2.3 inches)68%extreme
October Weather22°C (72°F)127 mm (5.0 inches)61%extreme
November Weather22°C (71°F)174 mm (6.8 inches)72%extreme
December Weather23°C (74°F)225 mm (8.8 inches)75%extreme

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