January Weather in Rio Branco, Brazil

Last updated: August 22, 2025

In January, the average temperature in Rio Branco, Brazil is a pleasant 26°C (79°F), with minimum temperatures dipping to 20°C (68°F) and maximums reaching up to 34°C (93°F). Expect frequent rain, with a total precipitation of 264 mm (10.4 in) over about 23 days, resulting in an average humidity of 88%. Embrace the warmth and occasional showers that make this month uniquely inviting!

January Temperature in Rio Branco

In January in Rio Branco, the average temperature is 26°C (79°F). Maximums can reach 34°C (93°F) and minimums can be as low as 20°C (68°F). This makes Rio Branco an ideal destination for travelers seeking warm and pleasant weather during this time.

January Weather in Rio Branco: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Rio Branco, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rio Branco, January typically has an average temperature of 26°C (79°F), with highs reaching up to 34°C (93°F) and lows dropping to around 20°C (68°F).

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

January Precipitation in Rio Branco

In Rio Branco in January, the precipitation amount is 264 mm (10.4 in) throughout a span of 23 days.

January Precipitation Trends in Rio Branco

The chart displays monthly precipitation patterns in Rio Branco, 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 Rio Branco, January typically receives around 264 mm (10.4 inches) of precipitation spread over approximately 23 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 Rio Branco

In Rio Branco in January, humidity is 88%. With an average temperature of 26°C (79°F), this humidity feels like a warm blanket wrapped around you, making travel somewhat uncomfortable as you quickly become aware of the stickiness and heaviness in the air.

January Average Humidity in Rio Branco

This chart illustrates the average monthly humidity levels in Rio Branco, 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 Rio Branco is approximately 88%, 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 Rio Branco

In Rio Branco 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 Rio Branco.

Maximum UV Index Levels in Rio Branco for January

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

Data source: Rio Branco 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 Rio Branco Compares to Other Months

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

This table compares monthly weather conditions in Rio Branco, 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 (79°F)	264 mm (10.4 inches)	88%	extreme
February Weather	25°C (78°F)	285 mm (11.2 inches)	87%	extreme
March Weather	26°C (78°F)	288 mm (11.3 inches)	87%	extreme
April Weather	26°C (78°F)	168 mm (6.6 inches)	89%	extreme
May Weather	25°C (77°F)	83 mm (3.3 inches)	84%	extreme
June Weather	24°C (76°F)	33 mm (1.3 inches)	67%	very high
July Weather	25°C (76°F)	14 mm (0.6 inches)	46%	very high
August Weather	26°C (79°F)	26 mm (1.0 inches)	37%	extreme
September Weather	27°C (82°F)	53 mm (2.1 inches)	33%	extreme
October Weather	27°C (81°F)	125 mm (4.9 inches)	44%	extreme
November Weather	26°C (80°F)	206 mm (8.1 inches)	73%	extreme
December Weather	26°C (79°F)	305 mm (12.0 inches)	88%	extreme