January Weather in Acu, Brazil

Last updated: August 22, 2025

In January, the average temperature in Acu, Brazil hovers around 29°C (85°F). However, temperatures can range from a comfortable 22°C (71°F) to a scorching 39°C (103°F). Expect 27 mm (1.1 in) of precipitation over about 6 days, accompanied by a high average humidity of 84%. Prepare for a warm and slightly humid month!

January Temperature in Acu

In January in Acu, the average temperature is 29°C (85°F). Maximums can reach 39°C (103°F), and minimums can be as low as 22°C (71°F). This warm and tropical climate makes Acu an ideal destination for sun-seekers and outdoor enthusiasts during this time of year.

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

The chart illustrates January 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, January typically has an average temperature of 29°C (85°F), with highs reaching up to 39°C (103°F) and lows dropping to around 22°C (71°F).

Data source: Temperature data for Acu generated using information from the Copernicus Climate Change Service.

January Precipitation in Acu

In Acu in January, the precipitation amount is 27 mm (1.1 in) over a period of 6 days.

January Precipitation Trends in Acu

The chart displays monthly precipitation patterns in Acu, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Acu, January typically receives around 27 mm (1.1 inches) of precipitation spread over approximately 6 days.

Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

January Humidity in Acu

In Acu in January humidity is 84%. With an average temperature of 29°C (85°F), this humidity feels like a warm, tropical embrace that clings to your skin, making every step feel heavier and more laborious while traveling.

January Average Humidity in Acu

This chart illustrates the average monthly humidity levels in Acu, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Acu is approximately 84%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Acu

In Acu in January, 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 January

The chart shows the monthly maximum UV Index (UVI) for Acu in January, 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 January, the maximum UV index in Acu typically reaches 14, which falls under the extreme exposure category.

Data source: Acu January 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 January 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 January’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 January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	29°C (85°F)	27 mm (1.1 inches)	84%	extreme
February Weather	29°C (84°F)	124 mm (4.9 inches)	85%	extreme
March Weather	28°C (83°F)	121 mm (4.8 inches)	86%	extreme
April Weather	28°C (82°F)	97 mm (3.8 inches)	85%	extreme
May Weather	28°C (82°F)	70 mm (2.8 inches)	86%	extreme
June Weather	28°C (82°F)	30 mm (1.2 inches)	82%	extreme
July Weather	27°C (81°F)	35 mm (1.4 inches)	75%	extreme
August Weather	28°C (83°F)	1 mm (0.0 inches)	73%	extreme
September Weather	29°C (84°F)	1 mm (0.0 inches)	71%	extreme
October Weather	30°C (85°F)	2 mm (0.1 inches)	70%	extreme
November Weather	30°C (86°F)	2 mm (0.1 inches)	71%	extreme
December Weather	30°C (86°F)	12 mm (0.5 inches)	76%	extreme