January Weather in Viseu, Brazil

Last updated: August 22, 2025

In Viseu, Brazil, the average temperature in January hovers around 26°C (79°F), with minimums reaching 22°C (72°F) and maximums peaking at 32°C (90°F). Expect a fair share of rain, with 241 mm (9.5 in) of precipitation spread over 25 days. Coupled with an average humidity of 87%, prepare for a warm and damp experience!

January Temperature in Viseu

In January in Viseu, the average temperature is 26°C (79°F). Maximums can reach 32°C (90°F), and minimums can be as low as 22°C (72°F). This mild weather makes it an ideal time for traveling and exploring the local attractions.

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

The chart illustrates January temperature patterns in Viseu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Viseu, January typically has an average temperature of 26°C (79°F), with highs reaching up to 32°C (90°F) and lows dropping to around 22°C (72°F).

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

January Precipitation in Viseu

In Viseu in January, the precipitation amount is 241 mm (9.5 in) spread over 25 days.

January Precipitation Trends in Viseu

The chart displays monthly precipitation patterns in Viseu, 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 Viseu, January typically receives around 241 mm (9.5 inches) of precipitation spread over approximately 25 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 Viseu

In Viseu 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 Viseu

This chart illustrates the average monthly humidity levels in Viseu, 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 Viseu 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 Viseu

In Viseu 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 Viseu, you can check here.

Maximum UV Index Levels in Viseu for January

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

Data source: Viseu 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 Viseu Compares to Other Months

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

This table compares monthly weather conditions in Viseu, 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)	241 mm (9.5 inches)	87%	extreme
February Weather	26°C (79°F)	616 mm (24.3 inches)	84%	extreme
March Weather	26°C (79°F)	602 mm (23.7 inches)	84%	extreme
April Weather	26°C (79°F)	537 mm (21.2 inches)	87%	extreme
May Weather	26°C (80°F)	366 mm (14.4 inches)	87%	extreme
June Weather	26°C (80°F)	197 mm (7.8 inches)	83%	extreme
July Weather	26°C (80°F)	131 mm (5.2 inches)	81%	extreme
August Weather	27°C (80°F)	66 mm (2.6 inches)	79%	extreme
September Weather	27°C (81°F)	43 mm (1.7 inches)	78%	extreme
October Weather	28°C (82°F)	39 mm (1.5 inches)	77%	extreme
November Weather	28°C (82°F)	55 mm (2.2 inches)	78%	extreme
December Weather	27°C (81°F)	130 mm (5.1 inches)	84%	extreme