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December Weather in Barro Alto, Brazil

Last updated: August 22, 2025

In December, the average temperature in Barro Alto, Brazil is a pleasant 24°C (76°F). Temperatures can range from a cool 16°C (61°F) to a warm 36°C (98°F). Expect some rain, with an average precipitation of 94 mm (3.7 in) over 8 days. The average humidity sits comfortably at 54%, making for generally enjoyable weather conditions.

December Temperature in Barro Alto

In December, in Barro Alto, the average temperature is 24°C (76°F). The maximum can reach 36°C (98°F), while the minimum can be as low as 16°C (61°F). This makes Barro Alto a great destination for travelers seeking warm weather and pleasant evenings.

December Weather in Barro Alto: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Barro Alto, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Barro Alto, December typically has an average temperature of 24°C (76°F), with highs reaching up to 36°C (98°F) and lows dropping to around 16°C (61°F).
JanFebMarAprMayJunJulAugSepOctNovDec767676757371697073777676
Data source: Temperature data for Barro Alto 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 Barro Alto

In Barro Alto in December, the precipitation amount is 94 mm (3.7 in) over the course of 8 days.

December Precipitation Trends in Barro Alto

The chart displays monthly precipitation patterns in Barro Alto, 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 Barro Alto, December typically receives around 94 mm (3.7 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec39537542956552410494
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Barro Alto

In Barro Alto in December humidity is 54%. With an average temperature of 24°C (76°F), this humidity feels like a warm embrace, making it comfortable for exploring the sights while also inviting you to take refreshing breaks in the shade.

December Average Humidity in Barro Alto

This chart illustrates the average monthly humidity levels in Barro Alto, 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 Barro Alto is approximately 54%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%85%90%89%84%81%75%70%63%57%50%54%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Barro Alto

In Barro Alto 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 Barro Alto.

Maximum UV Index Levels in Barro Alto for December

The chart shows the monthly maximum UV Index (UVI) for Barro Alto 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 Barro Alto typically reaches 15, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151515141210111313151515
Data source: Barro Alto 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 Barro Alto Compares to Other Months

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

This table compares monthly weather conditions in Barro Alto, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather25°C (76°F)39 mm (1.5 inches)76%extreme
February Weather25°C (77°F)53 mm (2.1 inches)85%extreme
March Weather25°C (77°F)75 mm (2.9 inches)90%extreme
April Weather24°C (75°F)41 mm (1.6 inches)89%extreme
May Weather23°C (73°F)9 mm (0.3 inches)84%extreme
June Weather21°C (71°F)5 mm (0.2 inches)81%very high
July Weather20°C (69°F)6 mm (0.2 inches)75%extreme
August Weather21°C (70°F)5 mm (0.2 inches)70%extreme
September Weather23°C (73°F)5 mm (0.2 inches)63%extreme
October Weather25°C (77°F)24 mm (0.9 inches)57%extreme
November Weather24°C (76°F)104 mm (4.1 inches)50%extreme
December Weather24°C (76°F)94 mm (3.7 inches)54%extreme

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