January Weather in Teresina, Brazil

Last updated: August 22, 2025

In Teresina, Brazil, the average temperature in January hovers around 27°C (81°F). You can expect a minimum temperature of 22°C (72°F), while the maximum can reach 37°C (98°F). During this time, precipitation amounts to 173 mm (6.8 in), spread across approximately 19 days, contributing to an average humidity of 90%. Stay prepared for a warm and wet climate!

January Temperature in Teresina

In January in Teresina, the average temperature is 27°C (81°F), with maximums reaching up to 37°C (98°F) and minimums dropping as low as 22°C (72°F). This warm climate makes Teresina an ideal destination for travelers seeking sunshine and outdoor activities.

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

The chart illustrates January temperature patterns in Teresina, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Teresina, January typically has an average temperature of 27°C (81°F), with highs reaching up to 37°C (98°F) and lows dropping to around 22°C (72°F).

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

January Precipitation in Teresina

In Teresina in January, the precipitation amount is 173 mm (6.8 in) over a span of 19 days.

January Precipitation Trends in Teresina

The chart displays monthly precipitation patterns in Teresina, 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 Teresina, January typically receives around 173 mm (6.8 inches) of precipitation spread over approximately 19 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 Teresina

In Teresina in January, humidity is 90%. With an average temperature of 27°C (81°F), this humidity feels like walking through a heavy fog, making outdoor activities uncomfortable and exhausting, and leaving travelers drenched in sweat within minutes.

January Average Humidity in Teresina

This chart illustrates the average monthly humidity levels in Teresina, 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 Teresina is approximately 90%, 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 Teresina

In Teresina 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 Teresina, you can check here.

Maximum UV Index Levels in Teresina for January

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

Data source: Teresina 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 Teresina Compares to Other Months

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

This table compares monthly weather conditions in Teresina, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	27°C (81°F)	173 mm (6.8 inches)	90%	extreme
February Weather	27°C (80°F)	312 mm (12.3 inches)	91%	extreme
March Weather	27°C (80°F)	320 mm (12.6 inches)	92%	extreme
April Weather	27°C (81°F)	263 mm (10.4 inches)	93%	extreme
May Weather	27°C (82°F)	74 mm (2.9 inches)	88%	extreme
June Weather	28°C (82°F)	9 mm (0.3 inches)	75%	extreme
July Weather	28°C (82°F)	12 mm (0.5 inches)	52%	extreme
August Weather	29°C (84°F)	3 mm (0.1 inches)	42%	extreme
September Weather	30°C (86°F)	3 mm (0.1 inches)	36%	extreme
October Weather	31°C (87°F)	11 mm (0.4 inches)	35%	extreme
November Weather	30°C (86°F)	50 mm (2.0 inches)	43%	extreme
December Weather	29°C (84°F)	100 mm (3.9 inches)	76%	extreme