May Weather in Cotia, Brazil

Last updated: August 22, 2025

In May, the average temperature in Cotia, Brazil hovers around 18°C (65°F), with minimums dipping to 4°C (39°F) and maximums reaching 30°C (86°F). Expect about 46 mm (1.8 in) of precipitation spread over 5 days, accompanied by a comfortable average humidity of 79%.

May Temperature in Cotia

In May in Cotia, the average temperature is 18°C (65°F). The maximum can reach 30°C (86°F) and the minimum can be as low as 4°C (39°F). This climate makes it an ideal time for travelers to enjoy outdoor activities while dressing in layers for the varying temperatures.

May Weather in Cotia: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Cotia, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cotia, May typically has an average temperature of 18°C (65°F), with highs reaching up to 30°C (86°F) and lows dropping to around 4°C (39°F).

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

May Precipitation in Cotia

In Cotia in May, the precipitation amount is 46 mm (1.8 in) recorded over a span of 5 days.

May Precipitation Trends in Cotia

The chart displays monthly precipitation patterns in Cotia, 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 Cotia, May typically receives around 46 mm (1.8 inches) of precipitation spread over approximately 5 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 Cotia

In Cotia in May, humidity is 79%. With an average temperature of 18°C (65°F), this humidity feels like walking through a warm mist, making traveling slightly uncomfortable and sticky, but offering a refreshing escape when you find moments of shade or a breeze.

May Average Humidity in Cotia

This chart illustrates the average monthly humidity levels in Cotia, 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 Cotia is approximately 79%, 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 Cotia

In Cotia in May, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Cotia.

Maximum UV Index Levels in Cotia for May

The chart shows the monthly maximum UV Index (UVI) for Cotia 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 Cotia typically reaches 8, which falls under the very high exposure category.

Data source: Cotia 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 Cotia Compares to Other Months

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

This table compares monthly weather conditions in Cotia, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	23°C (74°F)	175 mm (6.9 inches)	88%	extreme
February Weather	22°C (73°F)	159 mm (6.3 inches)	88%	extreme
March Weather	22°C (73°F)	129 mm (5.1 inches)	87%	extreme
April Weather	20°C (69°F)	54 mm (2.1 inches)	84%	extreme
May Weather	18°C (65°F)	46 mm (1.8 inches)	79%	very high
June Weather	18°C (64°F)	46 mm (1.8 inches)	77%	high
July Weather	17°C (62°F)	24 mm (0.9 inches)	72%	high
August Weather	17°C (63°F)	55 mm (2.2 inches)	65%	very high
September Weather	20°C (69°F)	38 mm (1.5 inches)	58%	extreme
October Weather	21°C (70°F)	115 mm (4.5 inches)	50%	extreme
November Weather	21°C (69°F)	119 mm (4.7 inches)	75%	extreme
December Weather	22°C (72°F)	149 mm (5.9 inches)	80%	extreme