January Weather in Arroio dos Ratos, Brazil

Last updated: August 22, 2025

In January, the average temperature in Arroio dos Ratos, Brazil is a comfortable 26°C (78°F). Expect temperatures to range from a cool 13°C (56°F) to a sizzling 40°C (103°F). During this month, precipitation averages 85 mm (3.3 in) over approximately 12 days, while relative humidity is notably high at 77%. Prepare accordingly for warm days and occasional rain!

January Temperature in Arroio dos Ratos

In January in Arroio dos Ratos, the average temperature is 26°C (78°F). Maximum temperatures can reach 40°C (103°F), while minimum temperatures can drop as low as 13°C (56°F). Travelers should pack accordingly, enjoying warm days but being prepared for cooler evenings.

January Weather in Arroio dos Ratos: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Arroio dos Ratos, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Arroio dos Ratos, January typically has an average temperature of 26°C (78°F), with highs reaching up to 40°C (103°F) and lows dropping to around 13°C (56°F).

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

January Precipitation in Arroio dos Ratos

In Arroio dos Ratos in January, the precipitation amount is 85 mm (3.3 in) over a duration of 12 days.

January Precipitation Trends in Arroio dos Ratos

The chart displays monthly precipitation patterns in Arroio dos Ratos, 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 Arroio dos Ratos, January typically receives around 85 mm (3.3 inches) of precipitation spread over approximately 12 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 Arroio dos Ratos

In Arroio dos Ratos in January, humidity is 77%. With an average temperature of 26°C (78°F), this humidity feels like an inviting embrace that can quickly fatigue travelers, making every step feel heavier and each breath a reminder of the warm, moist air surrounding them.

January Average Humidity in Arroio dos Ratos

This chart illustrates the average monthly humidity levels in Arroio dos Ratos, 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 Arroio dos Ratos is approximately 77%, 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 Arroio dos Ratos

In Arroio dos Ratos 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 Arroio dos Ratos, you can check here.

Maximum UV Index Levels in Arroio dos Ratos for January

The chart shows the monthly maximum UV Index (UVI) for Arroio dos Ratos 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 Arroio dos Ratos typically reaches 14, which falls under the extreme exposure category.

Data source: Arroio dos Ratos 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 Arroio dos Ratos Compares to Other Months

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

This table compares monthly weather conditions in Arroio dos Ratos, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	26°C (78°F)	85 mm (3.3 inches)	77%	extreme
February Weather	25°C (77°F)	91 mm (3.6 inches)	79%	extreme
March Weather	23°C (74°F)	102 mm (4.0 inches)	79%	extreme
April Weather	21°C (70°F)	76 mm (3.0 inches)	82%	very high
May Weather	17°C (63°F)	160 mm (6.3 inches)	87%	high
June Weather	15°C (60°F)	117 mm (4.6 inches)	85%	moderate
July Weather	14°C (57°F)	123 mm (4.9 inches)	82%	moderate
August Weather	15°C (60°F)	76 mm (3.0 inches)	81%	high
September Weather	18°C (65°F)	151 mm (6.0 inches)	84%	very high
October Weather	20°C (68°F)	139 mm (5.5 inches)	85%	extreme
November Weather	22°C (71°F)	108 mm (4.3 inches)	82%	extreme
December Weather	24°C (75°F)	64 mm (2.5 inches)	84%	extreme