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December Weather in Rio Claro, Brazil

Last updated: August 22, 2025

In Rio Claro, Brazil, the average temperature in December is a pleasant 24°C (76°F). However, you can expect a comfortable range, with minimums dipping to 14°C (57°F) and maximums soaring to 36°C (97°F). Be prepared for some rain, as the area sees an average precipitation of 164 mm (6.5 in) over 18 days. With an average humidity of 83%, it’s the perfect time to embrace the lush and vibrant atmosphere!

December Temperature in Rio Claro

In December in Rio Claro, the average temperature is 24°C (76°F). The maximum can reach 36°C (97°F), and the minimum can be as low as 14°C (57°F). This pleasant climate makes Rio Claro an ideal destination for travelers seeking a warm 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 24°C (76°F), with highs reaching up to 36°C (97°F) and lows dropping to around 14°C (57°F).
JanFebMarAprMayJunJulAugSepOctNovDec777676736867656774757476
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 164 mm (6.5 in) over the course of 18 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 164 mm (6.5 inches) of precipitation spread over approximately 18 days.
JanFebMarAprMayJunJulAugSepOctNovDec20717911253382174138110150164
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 83%. With an average temperature of 24°C (76°F), this humidity feels like a thick blanket enveloping you, making every step feel heavier and possibly causing travelers to sweat more quickly, prompting frequent breaks in shaded areas or the search for refreshing beverages.

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 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%87%86%82%76%71%68%59%54%50%74%83%
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 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 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 16, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec161613118671012131416
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)207 mm (8.1 inches)88%extreme
February Weather24°C (76°F)179 mm (7.0 inches)87%extreme
March Weather25°C (76°F)112 mm (4.4 inches)86%extreme
April Weather23°C (73°F)53 mm (2.1 inches)82%extreme
May Weather20°C (68°F)38 mm (1.5 inches)76%very high
June Weather19°C (67°F)21 mm (0.8 inches)71%high
July Weather18°C (66°F)7 mm (0.3 inches)67%high
August Weather20°C (67°F)41 mm (1.6 inches)59%very high
September Weather23°C (74°F)38 mm (1.5 inches)54%extreme
October Weather24°C (75°F)110 mm (4.3 inches)50%extreme
November Weather23°C (75°F)150 mm (5.9 inches)74%extreme
December Weather24°C (76°F)164 mm (6.5 inches)83%extreme

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