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December Weather in Rio Tinto, Brazil

Last updated: August 22, 2025

In Rio Tinto, Brazil, the average temperature in December hovers around 27°C (80°F), with a comfortable range between a minimum of 24°C (76°F) and a maximum of 29°C (85°F). Expect precipitation of about 55 mm (2.2 in) spread across 22 days, contributing to an average humidity level of 70%. Enjoy the balmy weather as you explore!

December Temperature in Rio Tinto

In December in Rio Tinto, the average temperature is 27°C (80°F), with maximums reaching up to 29°C (85°F) and minimums dropping as low as 24°C (76°F). This pleasant climate makes it an ideal destination for travelers looking to enjoy warm, comfortable weather.

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

The chart illustrates December temperature patterns in Rio Tinto, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rio Tinto, December typically has an average temperature of 27°C (80°F), with highs reaching up to 29°C (85°F) and lows dropping to around 24°C (76°F).
JanFebMarAprMayJunJulAugSepOctNovDec808180807978767677798080
Data source: Temperature data for Rio Tinto 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 Tinto

In Rio Tinto in December, the total precipitation amount is 55 mm (2.2 in), spread over 22 days.

December Precipitation Trends in Rio Tinto

The chart displays monthly precipitation patterns in Rio Tinto, 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 Tinto, December typically receives around 55 mm (2.2 inches) of precipitation spread over approximately 22 days.
JanFebMarAprMayJunJulAugSepOctNovDec631051641831911491837462474055
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Rio Tinto

In Rio Tinto in December humidity is 70%. With an average temperature of 27°C (80°F), this humidity feels like you're enveloped in a warm, heavy blanket, making traveling feel a bit more challenging. The air tends to weigh you down, and you may find yourself needing to take frequent breaks to stay refreshed.

December Average Humidity in Rio Tinto

This chart illustrates the average monthly humidity levels in Rio Tinto, 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 Tinto is approximately 70%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%89%90%89%90%86%80%77%72%68%66%70%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Rio Tinto

In Rio Tinto in December, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in Rio Tinto, you can check here.

Maximum UV Index Levels in Rio Tinto for December

The chart shows the monthly maximum UV Index (UVI) for Rio Tinto 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 Tinto typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141415141211111213131414
Data source: Rio Tinto 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 Tinto Compares to Other Months

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

This table compares monthly weather conditions in Rio Tinto, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather27°C (80°F)63 mm (2.5 inches)86%extreme
February Weather27°C (81°F)105 mm (4.1 inches)89%extreme
March Weather27°C (81°F)164 mm (6.4 inches)89%extreme
April Weather27°C (80°F)183 mm (7.2 inches)89%extreme
May Weather26°C (79°F)191 mm (7.5 inches)90%extreme
June Weather25°C (78°F)149 mm (5.9 inches)86%extreme
July Weather25°C (77°F)183 mm (7.2 inches)80%extreme
August Weather25°C (77°F)74 mm (2.9 inches)77%extreme
September Weather25°C (77°F)62 mm (2.4 inches)72%extreme
October Weather26°C (79°F)47 mm (1.8 inches)68%extreme
November Weather27°C (80°F)40 mm (1.6 inches)66%extreme
December Weather27°C (80°F)55 mm (2.2 inches)70%extreme

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