January Weather in Sao Mateus, Brazil

Last updated: August 22, 2025

In Sao Mateus, Brazil, the average temperature in January hovers around 26°C (79°F), creating a pleasant and inviting atmosphere. Expect minimums of 23°C (73°F) and maximums reaching up to 30°C (86°F), perfect for outdoor activities. However, be prepared for some rain, as 74 mm (2.9 in) of precipitation can fall over 14 days. With an average humidity of 81%, the air feels warm and tropical, making it an ideal time to explore!

January Temperature in Sao Mateus

In January in Sao Mateus, the average temperature is 26°C (79°F), with maximums reaching 30°C (86°F) and minimums dropping to as low as 23°C (73°F). This pleasant climate makes Sao Mateus an ideal destination for travelers seeking warm and comfortable weather.

January Weather in Sao Mateus: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Sao Mateus, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sao Mateus, January typically has an average temperature of 26°C (79°F), with highs reaching up to 30°C (86°F) and lows dropping to around 23°C (73°F).

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

January Precipitation in Sao Mateus

In Sao Mateus in January, the precipitation amount is 74 mm (2.9 in) over a span of 14 days.

January Precipitation Trends in Sao Mateus

The chart displays monthly precipitation patterns in Sao Mateus, 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 Sao Mateus, January typically receives around 74 mm (2.9 inches) of precipitation spread over approximately 14 days.

Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

January Humidity in Sao Mateus

In Sao Mateus in January, humidity is 81%. With an average temperature of 26°C (79°F), this humidity feels like a warm, heavy blanket wrapping around you, making outdoor adventures stickier and more draining, yet still vibrant with life—perfect for exploring local culture, but you'll want to take frequent breaks and stay hydrated.

January Average Humidity in Sao Mateus

This chart illustrates the average monthly humidity levels in Sao Mateus, 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 Sao Mateus is approximately 81%, 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 Sao Mateus

In Sao Mateus 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 Sao Mateus.

Maximum UV Index Levels in Sao Mateus for January

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

Data source: Sao Mateus 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 Sao Mateus Compares to Other Months

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

This table compares monthly weather conditions in Sao Mateus, 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)	74 mm (2.9 inches)	81%	extreme
February Weather	26°C (80°F)	115 mm (4.5 inches)	82%	extreme
March Weather	26°C (80°F)	112 mm (4.4 inches)	82%	extreme
April Weather	25°C (78°F)	99 mm (3.9 inches)	81%	extreme
May Weather	24°C (76°F)	81 mm (3.2 inches)	79%	very high
June Weather	23°C (74°F)	53 mm (2.1 inches)	76%	high
July Weather	22°C (73°F)	48 mm (1.9 inches)	77%	very high
August Weather	22°C (73°F)	64 mm (2.5 inches)	77%	very high
September Weather	24°C (75°F)	60 mm (2.4 inches)	77%	extreme
October Weather	25°C (77°F)	135 mm (5.3 inches)	78%	extreme
November Weather	25°C (77°F)	179 mm (7.1 inches)	80%	extreme
December Weather	26°C (78°F)	246 mm (9.7 inches)	80%	extreme