January Weather in Tres Rios, Brazil

Last updated: August 22, 2025

In January, the average temperature in Tres Rios, Brazil is a pleasant 25°C (77°F), with daily highs reaching up to 34°C (94°F) and lows dipping to a comfortable 17°C (63°F). Expect 120 mm (4.7 in) of precipitation spread over 14 days, contributing to the area's lush landscapes. The average humidity sits at a balmy 85%, ensuring a tropical vibe throughout the month. Enjoy the warm, humid weather with occasional rainfall!

January Temperature in Tres Rios

In January in Tres Rios, the average temperature is 25°C (77°F). Maximums can reach 34°C (94°F), and minimums can be as low as 17°C (63°F). This pleasant climate makes it an ideal time to explore the outdoors and enjoy various activities.

January Weather in Tres Rios: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Tres Rios, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Tres Rios, January typically has an average temperature of 25°C (77°F), with highs reaching up to 34°C (94°F) and lows dropping to around 17°C (63°F).

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

January Precipitation in Tres Rios

In Tres Rios in January, the precipitation amount is 120 mm (4.7 in) over the course of 14 days.

January Precipitation Trends in Tres Rios

The chart displays monthly precipitation patterns in Tres Rios, 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 Tres Rios, January typically receives around 120 mm (4.7 inches) of precipitation spread over approximately 14 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 Tres Rios

In Tres Rios in January, humidity is 85%. With an average temperature of 25°C (77°F), this humidity feels like a warm, heavy blanket wrapping around you, making every outdoor excursion feel both stifling and sticky, requiring frequent breaks in the shade to stay comfortable while exploring.

January Average Humidity in Tres Rios

This chart illustrates the average monthly humidity levels in Tres Rios, 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 Tres Rios is approximately 85%, 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 Tres Rios

In Tres Rios in January, the maximum UV index is 16, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, making it crucial to take protective measures. For detailed information, you can refer to the Hourly UV Index in Tres Rios.

Maximum UV Index Levels in Tres Rios for January

The chart shows the monthly maximum UV Index (UVI) for Tres Rios 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 Tres Rios typically reaches 16, which falls under the extreme exposure category.

Data source: Tres Rios 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 Tres Rios Compares to Other Months

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

This table compares monthly weather conditions in Tres Rios, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	25°C (77°F)	120 mm (4.7 inches)	85%	extreme
February Weather	24°C (75°F)	211 mm (8.3 inches)	85%	extreme
March Weather	24°C (75°F)	143 mm (5.6 inches)	86%	extreme
April Weather	22°C (72°F)	48 mm (1.9 inches)	83%	extreme
May Weather	20°C (68°F)	36 mm (1.4 inches)	81%	very high
June Weather	19°C (67°F)	19 mm (0.7 inches)	80%	high
July Weather	18°C (64°F)	11 mm (0.4 inches)	76%	very high
August Weather	18°C (66°F)	37 mm (1.4 inches)	73%	very high
September Weather	22°C (71°F)	45 mm (1.8 inches)	68%	extreme
October Weather	22°C (72°F)	107 mm (4.2 inches)	61%	extreme
November Weather	22°C (72°F)	203 mm (8.0 inches)	72%	extreme
December Weather	23°C (74°F)	202 mm (7.9 inches)	75%	extreme