May Weather in Rialma, Brazil

Last updated: August 22, 2025

In Rialma, Brazil, the average temperature in May hovers around 24°C (75°F). Expect a range of temperatures, with a minimum as low as 7°C (46°F) and a maximum soaring to 33°C (92°F). Rainfall is light, totaling 9 mm (0.3 in) over the course of 2 days, and the average humidity sits comfortably at 65%.

May Temperature in Rialma

In May in Rialma, the average temperature is 24°C (75°F). The maximum can reach 33°C (92°F), while the minimum can drop as low as 7°C (46°F). This makes Rialma an ideal destination for travelers seeking a pleasant mix of warm days and cooler evenings.

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

The chart illustrates May temperature patterns in Rialma, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rialma, May typically has an average temperature of 24°C (75°F), with highs reaching up to 33°C (92°F) and lows dropping to around 7°C (46°F).

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

May Precipitation in Rialma

In Rialma in May, the precipitation amount is 9 mm (0.3 in) over a period of 2 days.

May Precipitation Trends in Rialma

The chart displays monthly precipitation patterns in Rialma, 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 Rialma, May typically receives around 9 mm (0.3 inches) of precipitation spread over approximately 2 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 Rialma

In Rialma in May humidity is 65%. With average temperature 24°C (75°F), this humidity feels like a warm blanket enveloping you, making outdoor activities a bit sticky but still enjoyable for exploring sights and sounds.

May Average Humidity in Rialma

This chart illustrates the average monthly humidity levels in Rialma, 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 Rialma is approximately 65%, 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 Rialma

In Rialma in May, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Rialma.

Maximum UV Index Levels in Rialma for May

The chart shows the monthly maximum UV Index (UVI) for Rialma 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 Rialma typically reaches 11, which falls under the extreme exposure category.

Data source: Rialma 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 Rialma Compares to Other Months

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

This table compares monthly weather conditions in Rialma, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	25°C (77°F)	130 mm (5.1 inches)	86%	extreme
February Weather	24°C (76°F)	184 mm (7.2 inches)	89%	extreme
March Weather	25°C (77°F)	133 mm (5.3 inches)	90%	extreme
April Weather	25°C (77°F)	66 mm (2.6 inches)	82%	extreme
May Weather	24°C (75°F)	9 mm (0.3 inches)	65%	extreme
June Weather	23°C (73°F)	0 mm (0.0 inches)	59%	very high
July Weather	22°C (72°F)	0 mm (0.0 inches)	53%	very high
August Weather	25°C (77°F)	0 mm (0.0 inches)	44%	extreme
September Weather	27°C (81°F)	4 mm (0.1 inches)	34%	extreme
October Weather	27°C (80°F)	88 mm (3.5 inches)	26%	extreme
November Weather	25°C (77°F)	166 mm (6.5 inches)	50%	extreme
December Weather	25°C (77°F)	234 mm (9.2 inches)	70%	extreme