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December Weather in Montes Altos, Brazil

Last updated: August 22, 2025

In December, the average temperature in Montes Altos, Brazil is a warm 27°C (81°F). Expect temperatures to range from a minimum of 21°C (70°F) to a maximum of 36°C (97°F). During this month, you might encounter 146 mm (5.7 in) of precipitation spread over approximately 21 days, coupled with an average humidity level of 82%. Stay prepared for a humid and often wet adventure!

December Temperature in Montes Altos

In December in Montes Altos, the average temperature is 27°C (81°F). Maximum temperatures can reach 36°C (97°F), while minimums can drop as low as 21°C (70°F). This delightful weather makes Montes Altos an ideal destination for travelers seeking warmth and sunshine.

December Weather in Montes Altos: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Montes Altos, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Montes Altos, December typically has an average temperature of 27°C (81°F), with highs reaching up to 36°C (97°F) and lows dropping to around 21°C (70°F).
JanFebMarAprMayJunJulAugSepOctNovDec797979808181818284838180
Data source: Temperature data for Montes Altos 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 Montes Altos

In Montes Altos in December, the total precipitation amount is 146 mm (5.7 in) spread over 21 days.

December Precipitation Trends in Montes Altos

The chart displays monthly precipitation patterns in Montes Altos, 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 Montes Altos, December typically receives around 146 mm (5.7 inches) of precipitation spread over approximately 21 days.
JanFebMarAprMayJunJulAugSepOctNovDec192248221171596641043122146
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Montes Altos

In Montes Altos in December humidity is 82%. With an average temperature of 27°C (81°F), this humidity feels like a heavy blanket wrapping around you, making outdoor activities feel more exhausting, and leaving you longing for the relief of air-conditioned spaces during your travels.

December Average Humidity in Montes Altos

This chart illustrates the average monthly humidity levels in Montes Altos, 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 Montes Altos is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%91%91%94%89%80%66%53%46%45%53%83%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Montes Altos

In Montes Altos 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 Montes Altos, you can check here.

Maximum UV Index Levels in Montes Altos for December

The chart shows the monthly maximum UV Index (UVI) for Montes Altos 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 Montes Altos typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151515151311111213131414
Data source: Montes Altos 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 Montes Altos Compares to Other Months

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

This table compares monthly weather conditions in Montes Altos, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather26°C (79°F)192 mm (7.6 inches)91%extreme
February Weather26°C (79°F)248 mm (9.8 inches)91%extreme
March Weather26°C (79°F)220 mm (8.7 inches)91%extreme
April Weather26°C (80°F)171 mm (6.7 inches)94%extreme
May Weather27°C (81°F)59 mm (2.3 inches)89%extreme
June Weather27°C (81°F)6 mm (0.2 inches)80%extreme
July Weather27°C (81°F)6 mm (0.2 inches)66%extreme
August Weather28°C (83°F)4 mm (0.1 inches)53%extreme
September Weather29°C (84°F)10 mm (0.4 inches)46%extreme
October Weather28°C (83°F)43 mm (1.7 inches)45%extreme
November Weather27°C (81°F)122 mm (4.8 inches)53%extreme
December Weather27°C (81°F)146 mm (5.7 inches)82%extreme

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