January Weather in Boa Vista, Brazil

Last updated: August 22, 2025

In January, the average temperature in Boa Vista, Brazil hovers around 28°C (83°F), providing a warm backdrop for outdoor activities. Expect a comfortable minimum of 22°C (72°F) and a sizzling maximum of 36°C (98°F). While the weather is largely pleasant, be prepared for some moisture, with 52 mm (2.1 in) of precipitation spread over about 7 days. Additionally, the average humidity is a moderate 44%, making it an ideal setting for enjoying the sun without feeling overly sticky.

January Temperature in Boa Vista

In January in Boa Vista, the average temperature is 28°C (83°F). Maximums can reach 36°C (98°F), and minimums can be as low as 22°C (72°F). This mild climate makes it an ideal destination for travelers looking to enjoy warm weather and outdoor activities.

January Weather in Boa Vista: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Boa Vista, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Boa Vista, January typically has an average temperature of 28°C (83°F), with highs reaching up to 36°C (98°F) and lows dropping to around 22°C (72°F).

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

January Precipitation in Boa Vista

In Boa Vista in January, the precipitation amount is 52 mm (2.1 in) over the course of 7 days.

January Precipitation Trends in Boa Vista

The chart displays monthly precipitation patterns in Boa Vista, 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 Boa Vista, January typically receives around 52 mm (2.1 inches) of precipitation spread over approximately 7 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 Boa Vista

In Boa Vista in January, humidity is 44%. With an average temperature of 28°C (83°F), this humidity feels like a warm embrace, making it comfortable for exploring outdoor attractions and enjoying leisurely walks, though occasional breaks in the shade may be refreshing.

January Average Humidity in Boa Vista

This chart illustrates the average monthly humidity levels in Boa Vista, 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 Boa Vista is approximately 44%, 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 Boa Vista

In Boa Vista 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 Boa Vista, you can check here.

Maximum UV Index Levels in Boa Vista for January

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

Data source: Boa Vista 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 Boa Vista Compares to Other Months

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

This table compares monthly weather conditions in Boa Vista, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	28°C (83°F)	52 mm (2.1 inches)	44%	extreme
February Weather	29°C (84°F)	33 mm (1.3 inches)	40%	extreme
March Weather	29°C (84°F)	70 mm (2.7 inches)	38%	extreme
April Weather	28°C (83°F)	164 mm (6.5 inches)	39%	extreme
May Weather	27°C (80°F)	384 mm (15.1 inches)	60%	extreme
June Weather	26°C (80°F)	360 mm (14.2 inches)	89%	extreme
July Weather	26°C (79°F)	304 mm (12.0 inches)	84%	extreme
August Weather	27°C (81°F)	183 mm (7.2 inches)	77%	extreme
September Weather	28°C (83°F)	119 mm (4.7 inches)	60%	extreme
October Weather	29°C (84°F)	71 mm (2.8 inches)	40%	extreme
November Weather	29°C (84°F)	135 mm (5.3 inches)	44%	extreme
December Weather	28°C (83°F)	75 mm (3.0 inches)	49%	extreme