January Weather in Iacu, Brazil

Last updated: August 22, 2025

In January, the average temperature in Iacu, Brazil is 27°C (80°F), with a comfortable minimum of 18°C (65°F) and a peak reaching 37°C (98°F). Expect 25 mm (1.0 in) of precipitation over the course of about 4 days, contributing to an average humidity of 73%. Enjoy the warm, tropical atmosphere!

January Temperature in Iacu

In January in Iacu, the average temperature is 27°C (80°F), with maximums reaching 37°C (98°F) and minimums dipping to as low as 18°C (65°F). This makes it an ideal time for travelers seeking warm weather and outdoor activities.

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

The chart illustrates January temperature patterns in Iacu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Iacu, January typically has an average temperature of 27°C (80°F), with highs reaching up to 37°C (98°F) and lows dropping to around 18°C (65°F).

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

January Precipitation in Iacu

In Iacu in January, the precipitation amount is 25 mm (1.0 in) over the course of 4 days.

January Precipitation Trends in Iacu

The chart displays monthly precipitation patterns in Iacu, 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 Iacu, January typically receives around 25 mm (1.0 inches) of precipitation spread over approximately 4 days.

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

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Millimeters (mm) Inches (in)

January Humidity in Iacu

In Iacu in January humidity is 73%. With an average temperature of 27°C (80°F), this humidity feels like a warm, enveloping blanket that can make traveling feel sticky and slightly uncomfortable, prompting frequent breaks in the shade and plenty of hydration.

January Average Humidity in Iacu

This chart illustrates the average monthly humidity levels in Iacu, 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 Iacu is approximately 73%, 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 Iacu

In Iacu in January, 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 Iacu.

Maximum UV Index Levels in Iacu for January

The chart shows the monthly maximum UV Index (UVI) for Iacu 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 Iacu typically reaches 15, which falls under the extreme exposure category.

Data source: Iacu 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 Iacu Compares to Other Months

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

This table compares monthly weather conditions in Iacu, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	27°C (80°F)	25 mm (1.0 inches)	73%	extreme
February Weather	27°C (82°F)	44 mm (1.7 inches)	80%	extreme
March Weather	27°C (81°F)	59 mm (2.3 inches)	89%	extreme
April Weather	26°C (79°F)	80 mm (3.2 inches)	88%	extreme
May Weather	25°C (77°F)	29 mm (1.1 inches)	85%	extreme
June Weather	24°C (75°F)	20 mm (0.8 inches)	85%	very high
July Weather	23°C (73°F)	20 mm (0.8 inches)	80%	very high
August Weather	23°C (74°F)	17 mm (0.7 inches)	76%	extreme
September Weather	24°C (76°F)	17 mm (0.7 inches)	70%	extreme
October Weather	26°C (79°F)	21 mm (0.8 inches)	63%	extreme
November Weather	26°C (79°F)	83 mm (3.3 inches)	58%	extreme
December Weather	26°C (79°F)	65 mm (2.6 inches)	59%	extreme