nomadseason

December Weather in Acu, Brazil

Last updated: August 22, 2025

In Acu, Brazil, the average temperature in December soars to a warm 30°C (86°F). Expect a comfortable minimum of 23°C (73°F) and a sizzling maximum of 38°C (100°F). With an average humidity level of 76%, you'll feel the warmth in the air. Be prepared for a touch of rain, as 12 mm (0.5 in) of precipitation can fall over just 2 days. Embrace the season!

December Temperature in Acu

In December in Acu, the average temperature is 30°C (86°F). Maximum temperatures can reach 38°C (100°F), while minimums can drop to as low as 23°C (73°F). Travelers should be prepared for warm weather and pack accordingly for both the heat and cooler evenings.

December Weather in Acu: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Acu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Acu, December typically has an average temperature of 30°C (86°F), with highs reaching up to 38°C (100°F) and lows dropping to around 23°C (73°F).
JanFebMarAprMayJunJulAugSepOctNovDec858482828282818384858686
Data source: Temperature data for Acu generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Acu

In Acu in December, the precipitation amount is 12 mm (0.5 in) over the course of 2 days.

December Precipitation Trends in Acu

The chart displays monthly precipitation patterns in Acu, 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 Acu, December typically receives around 12 mm (0.5 inches) of precipitation spread over approximately 2 days.
JanFebMarAprMayJunJulAugSepOctNovDec2712412197703036112212
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in Acu

In Acu in December, humidity is 76%. With an average temperature of 30°C (86°F), this humidity feels like wrapping yourself in a warm, damp blanket, making it quite uncomfortable for traveling. The thick, heavy air can leave you feeling sticky, fatigued, and in need of frequent breaks to stay hydrated and cool.

December Average Humidity in Acu

This chart illustrates the average monthly humidity levels in Acu, 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 Acu is approximately 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%85%86%85%87%82%75%73%71%70%71%76%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Acu

In Acu 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 Acu, you can check here.

Maximum UV Index Levels in Acu for December

The chart shows the monthly maximum UV Index (UVI) for Acu 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 Acu typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141415141311111213131414
Data source: Acu 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 Acu Compares to Other Months

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

This table compares monthly weather conditions in Acu, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather29°C (85°F)27 mm (1.1 inches)84%extreme
February Weather29°C (84°F)124 mm (4.9 inches)85%extreme
March Weather28°C (83°F)121 mm (4.8 inches)86%extreme
April Weather28°C (82°F)97 mm (3.8 inches)85%extreme
May Weather28°C (82°F)70 mm (2.8 inches)86%extreme
June Weather28°C (82°F)30 mm (1.2 inches)82%extreme
July Weather27°C (81°F)35 mm (1.4 inches)75%extreme
August Weather28°C (83°F)1 mm (0.0 inches)73%extreme
September Weather29°C (84°F)1 mm (0.0 inches)71%extreme
October Weather30°C (85°F)2 mm (0.1 inches)70%extreme
November Weather30°C (86°F)2 mm (0.1 inches)71%extreme
December Weather30°C (86°F)12 mm (0.5 inches)76%extreme

Compare Acu's Climate with Cities Worldwide