January Weather in Sao Joao do Piaui, Brazil

Last updated: August 22, 2025

In Sao Joao do Piaui, Brazil, the average temperature in January is a warm 28°C (83°F), with lows dipping to 21°C (70°F) and highs soaring up to 38°C (100°F). Expect about 59 mm (2.3 in) of precipitation spread over 10 days, accompanied by a high average humidity of 86%. Perfect for those who enjoy a tropical climate!

January Temperature in Sao Joao do Piaui

In January in Sao Joao do Piaui, the average temperature is 28°C (83°F). Maximums can reach 38°C (100°F), while minimums can drop to as low as 21°C (70°F). Be prepared for warm weather and pack accordingly for a comfortable trip!

January Weather in Sao Joao do Piaui: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Sao Joao do Piaui, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sao Joao do Piaui, January typically has an average temperature of 28°C (83°F), with highs reaching up to 38°C (100°F) and lows dropping to around 21°C (70°F).

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

January Precipitation in Sao Joao do Piaui

In Sao Joao do Piaui in January, the precipitation amount is 59 mm (2.3 in) over the course of 10 days.

January Precipitation Trends in Sao Joao do Piaui

The chart displays monthly precipitation patterns in Sao Joao do Piaui, 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 Joao do Piaui, January typically receives around 59 mm (2.3 inches) of precipitation spread over approximately 10 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 Joao do Piaui

In Sao Joao do Piaui in January humidity is 86%. With an average temperature of 28°C (83°F), this humidity feels like a heavy blanket enveloping you, making every step feel sluggish and every breath a reminder of the tropical heat, which can be quite challenging for traveling.

January Average Humidity in Sao Joao do Piaui

This chart illustrates the average monthly humidity levels in Sao Joao do Piaui, 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 Joao do Piaui is approximately 86%, 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 Joao do Piaui

In Sao Joao do Piaui 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 Joao do Piaui.

Maximum UV Index Levels in Sao Joao do Piaui for January

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

Data source: Sao Joao do Piaui 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 Joao do Piaui Compares to Other Months

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

This table compares monthly weather conditions in Sao Joao do Piaui, 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)	59 mm (2.3 inches)	86%	extreme
February Weather	27°C (81°F)	153 mm (6.0 inches)	90%	extreme
March Weather	27°C (81°F)	109 mm (4.3 inches)	92%	extreme
April Weather	27°C (82°F)	100 mm (3.9 inches)	90%	extreme
May Weather	28°C (83°F)	15 mm (0.6 inches)	84%	extreme
June Weather	28°C (82°F)	2 mm (0.1 inches)	76%	extreme
July Weather	27°C (82°F)	1 mm (0.0 inches)	68%	extreme
August Weather	29°C (84°F)	0 mm (0.0 inches)	62%	extreme
September Weather	30°C (86°F)	0 mm (0.0 inches)	56%	extreme
October Weather	31°C (88°F)	34 mm (1.3 inches)	51%	extreme
November Weather	29°C (85°F)	55 mm (2.2 inches)	44%	extreme
December Weather	28°C (83°F)	53 mm (2.1 inches)	59%	extreme