May Weather in Rio do Sul, Brazil

Last updated: August 22, 2025

In May, the average temperature in Rio do Sul, Brazil is a pleasant 16°C (61°F). Expect a minimum of 3°C (38°F) and a maximum reaching up to 29°C (85°F), making for a varied climate. Precipitation is notable, with around 101 mm (4.0 in) falling over 10 days, and the air maintains an average humidity level of 86%.

May Temperature in Rio do Sul

In May in Rio do Sul, the average temperature is 16°C (61°F), with maximums reaching 29°C (85°F) and minimums dropping as low as 3°C (38°F). This range of temperatures makes it ideal for travelers to pack layers and enjoy both warm days and cooler evenings.

May Weather in Rio do Sul: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Rio do Sul, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rio do Sul, May typically has an average temperature of 16°C (61°F), with highs reaching up to 29°C (85°F) and lows dropping to around 3°C (38°F).

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

May Precipitation in Rio do Sul

In Rio do Sul in May, the precipitation amount is 101 mm (4.0 in) spread over the course of 10 days.

May Precipitation Trends in Rio do Sul

The chart displays monthly precipitation patterns in Rio do Sul, 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 Rio do Sul, May typically receives around 101 mm (4.0 inches) of precipitation spread over approximately 10 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 Rio do Sul

In Rio do Sul in May, humidity is 86%. With an average temperature of 16°C (61°F), this humidity feels like walking through a warm, thick blanket of air that clings to your skin, making outdoor activities feel sticky and uncomfortable for traveling.

May Average Humidity in Rio do Sul

This chart illustrates the average monthly humidity levels in Rio do Sul, 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 Rio do Sul is approximately 86%, 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 Rio do Sul

In Rio do Sul in May, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Rio do Sul.

Maximum UV Index Levels in Rio do Sul for May

The chart shows the monthly maximum UV Index (UVI) for Rio do Sul 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 Rio do Sul typically reaches 7, which falls under the high exposure category.

Data source: Rio do Sul 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 Rio do Sul Compares to Other Months

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

This table compares monthly weather conditions in Rio do Sul, 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)	155 mm (6.1 inches)	86%	extreme
February Weather	22°C (73°F)	130 mm (5.1 inches)	83%	extreme
March Weather	22°C (71°F)	109 mm (4.3 inches)	85%	extreme
April Weather	19°C (66°F)	69 mm (2.7 inches)	85%	very high
May Weather	16°C (61°F)	101 mm (4.0 inches)	86%	high
June Weather	15°C (59°F)	107 mm (4.2 inches)	85%	moderate
July Weather	13°C (56°F)	50 mm (2.0 inches)	80%	high
August Weather	15°C (58°F)	81 mm (3.2 inches)	79%	very high
September Weather	18°C (64°F)	100 mm (4.0 inches)	82%	extreme
October Weather	19°C (66°F)	134 mm (5.3 inches)	82%	extreme
November Weather	20°C (68°F)	123 mm (4.8 inches)	86%	extreme
December Weather	22°C (72°F)	174 mm (6.8 inches)	88%	extreme