January Weather in Mariana, Brazil

Last updated: August 22, 2025

In January, the average temperature in Mariana, Brazil hovers around 22°C (72°F), with a comfortable minimum of 16°C (61°F) and a maximum reaching up to 31°C (88°F). Be prepared for some rain, as precipitation amounts to 193 mm (7.6 in) over approximately 13 days. You'll also notice a high average humidity of 83%, adding a touch of tropical warmth to the air.

January Temperature in Mariana

In January in Mariana, the average temperature is 22°C (72°F), with maximums reaching 31°C (88°F) and minimums dropping as low as 16°C (61°F). This mild climate makes it an ideal destination for travelers looking to explore comfortably.

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

The chart illustrates January temperature patterns in Mariana, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mariana, January typically has an average temperature of 22°C (72°F), with highs reaching up to 31°C (88°F) and lows dropping to around 16°C (61°F).

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

January Precipitation in Mariana

In Mariana in January, the precipitation amount is 193 mm (7.6 in) recorded over a span of 13 days.

January Precipitation Trends in Mariana

The chart displays monthly precipitation patterns in Mariana, 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 Mariana, January typically receives around 193 mm (7.6 inches) of precipitation spread over approximately 13 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 Mariana

In Mariana in January humidity is 83%. With average temperature 22°C (72°F), this humidity feels like a heavy blanket wrapping around you, making outdoor activities challenging and prompting travelers to seek shade or frequent stops for hydration.

January Average Humidity in Mariana

This chart illustrates the average monthly humidity levels in Mariana, 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 Mariana is approximately 83%, 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 Mariana

In Mariana in January, the maximum UV index reaches an alarming 17, which falls under the extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to stay protected. For more details on the hourly UV index in Mariana, you can check Hourly UV Index in Mariana.

Maximum UV Index Levels in Mariana for January

The chart shows the monthly maximum UV Index (UVI) for Mariana 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 Mariana typically reaches 17, which falls under the extreme exposure category.

Data source: Mariana 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 Mariana Compares to Other Months

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

This table compares monthly weather conditions in Mariana, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	22°C (72°F)	193 mm (7.6 inches)	83%	extreme
February Weather	22°C (71°F)	281 mm (11.1 inches)	85%	extreme
March Weather	22°C (71°F)	190 mm (7.5 inches)	87%	extreme
April Weather	20°C (68°F)	80 mm (3.1 inches)	86%	extreme
May Weather	18°C (64°F)	53 mm (2.1 inches)	82%	very high
June Weather	17°C (63°F)	15 mm (0.6 inches)	82%	high
July Weather	16°C (61°F)	7 mm (0.3 inches)	77%	very high
August Weather	17°C (62°F)	35 mm (1.4 inches)	72%	extreme
September Weather	20°C (68°F)	55 mm (2.1 inches)	63%	extreme
October Weather	21°C (69°F)	192 mm (7.6 inches)	48%	extreme
November Weather	20°C (69°F)	256 mm (10.1 inches)	61%	extreme
December Weather	21°C (71°F)	277 mm (10.9 inches)	68%	extreme