May Weather in Sao Joao do Piaui, Brazil

Last updated: August 22, 2025

In May, the average temperature in Sao Joao do Piaui, Brazil hovers around 28°C (83°F), with a comfortable minimum of 20°C (68°F) and occasional peaks reaching 37°C (99°F). Expect light showers, with an average precipitation of 15 mm (0.6 in) spread over 3 days. With an average humidity of 84%, prepare for a warm and slightly muggy atmosphere!

May Temperature in Sao Joao do Piaui

In May in Sao Joao do Piaui, the average temperature is 28°C (83°F), with maximums reaching 37°C (99°F) and minimums dropping as low as 20°C (68°F). This warm weather makes it an ideal destination for travelers seeking sunny and enjoyable experiences.

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

The chart illustrates May 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, May typically has an average temperature of 28°C (83°F), with highs reaching up to 37°C (99°F) and lows dropping to around 20°C (68°F).

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

May Precipitation in Sao Joao do Piaui

In Sao Joao do Piaui in May, the precipitation amount is 15 mm (0.6 in) over the course of 3 days.

May Precipitation Trends in Sao Joao do Piaui

The chart displays monthly precipitation patterns in Sao Joao do Piaui, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Sao Joao do Piaui, May typically receives around 15 mm (0.6 inches) of precipitation spread over approximately 3 days.

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

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Millimeters (mm) Inches (in)

May Humidity in Sao Joao do Piaui

In Sao Joao do Piaui in May, humidity is 84%. With an average temperature of 28°C (83°F), this humidity feels like a thick blanket enveloping you, making every step feel heavier and the air almost stifling for traveling.

May Average Humidity in Sao Joao do Piaui

This chart illustrates the average monthly humidity levels in Sao Joao do Piaui, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Sao Joao do Piaui is approximately 84%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Sao Joao do Piaui

In Sao Joao do Piaui in May, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. 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 May

The chart shows the monthly maximum UV Index (UVI) for Sao Joao do Piaui in May, 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 May, the maximum UV index in Sao Joao do Piaui typically reaches 12, which falls under the extreme exposure category.

Data source: Sao Joao do Piaui May 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 May 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 May’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 May’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