January Weather in Porto Velho, Brazil

Last updated: August 22, 2025

In Porto Velho, Brazil, the average temperature in January hovers around 26°C (79°F). Expect a minimum of 22°C (72°F) and a maximum of 33°C (92°F). During this month, precipitation amounts to 268 mm (10.5 in), falling on 24 days, while the average humidity sits at a notable 87%.

January Temperature in Porto Velho

In January in Porto Velho, the average temperature is 26°C (79°F). The maximum can reach up to 33°C (92°F), while the minimum can drop as low as 22°C (72°F). This mild and pleasant weather makes Porto Velho an ideal destination for travelers looking to enjoy comfortable outdoor activities.

January Weather in Porto Velho: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Porto Velho, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Porto Velho, January typically has an average temperature of 26°C (79°F), with highs reaching up to 33°C (92°F) and lows dropping to around 22°C (72°F).

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

January Precipitation in Porto Velho

In Porto Velho in January, the total precipitation amount is 268 mm (10.5 in) over the course of 24 days.

January Precipitation Trends in Porto Velho

The chart displays monthly precipitation patterns in Porto Velho, 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 Porto Velho, January typically receives around 268 mm (10.5 inches) of precipitation spread over approximately 24 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 Porto Velho

In Porto Velho in January, humidity is 87%. With an average temperature of 26°C (79°F), this humidity feels like walking through a warm, thick blanket, making it essential to stay hydrated and take frequent breaks while exploring.

January Average Humidity in Porto Velho

This chart illustrates the average monthly humidity levels in Porto Velho, 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 Porto Velho is approximately 87%, 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 Porto Velho

In Porto Velho 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 Porto Velho.

Maximum UV Index Levels in Porto Velho for January

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

Data source: Porto Velho 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 Porto Velho Compares to Other Months

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

This table compares monthly weather conditions in Porto Velho, 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)	268 mm (10.5 inches)	87%	extreme
February Weather	26°C (79°F)	369 mm (14.5 inches)	85%	extreme
March Weather	26°C (79°F)	315 mm (12.4 inches)	86%	extreme
April Weather	26°C (79°F)	268 mm (10.5 inches)	89%	extreme
May Weather	26°C (79°F)	119 mm (4.7 inches)	85%	extreme
June Weather	26°C (79°F)	27 mm (1.1 inches)	76%	very high
July Weather	26°C (80°F)	3 mm (0.1 inches)	53%	very high
August Weather	27°C (81°F)	31 mm (1.2 inches)	36%	extreme
September Weather	28°C (83°F)	82 mm (3.2 inches)	32%	extreme
October Weather	27°C (81°F)	185 mm (7.3 inches)	36%	extreme
November Weather	27°C (80°F)	277 mm (10.9 inches)	64%	extreme
December Weather	26°C (79°F)	372 mm (14.7 inches)	85%	extreme