May Weather in Serro, Brazil

Last updated: August 22, 2025

In Serro, Brazil, the average temperature in May hovers around 18°C (65°F), offering a pleasant climate. Expect minimums of 5°C (40°F) and maximums reaching 28°C (83°F), providing a nice range for outdoor activities. Be prepared for 47 mm (1.8 in) of precipitation spread over 9 days, contributing to a fairly humid atmosphere with an average humidity of 78%.

May Temperature in Serro

In May in Serro, the average temperature is 18°C (65°F), with daily highs reaching up to 28°C (83°F) and lows dipping as low as 5°C (40°F). This mild climate makes Serro an ideal destination for travelers looking to enjoy a comfortable and pleasant atmosphere.

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

The chart illustrates May temperature patterns in Serro, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Serro, May typically has an average temperature of 18°C (65°F), with highs reaching up to 28°C (83°F) and lows dropping to around 5°C (40°F).

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

May Precipitation in Serro

In Serro in May, the total precipitation amount is 47 mm (1.8 in), which falls over the course of 9 days.

May Precipitation Trends in Serro

The chart displays monthly precipitation patterns in Serro, 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 Serro, May typically receives around 47 mm (1.8 inches) of precipitation spread over approximately 9 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 Serro

In Serro in May, humidity is 78%. With an average temperature of 18°C (65°F), this humidity feels like a warm, enveloping blanket, making travel quite muggy and potentially uncomfortable, as it can leave you feeling sticky and fatigued more quickly than usual.

May Average Humidity in Serro

This chart illustrates the average monthly humidity levels in Serro, 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 Serro is approximately 78%, 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 Serro

In Serro in May, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Serro.

Maximum UV Index Levels in Serro for May

The chart shows the monthly maximum UV Index (UVI) for Serro 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 Serro typically reaches 10, which falls under the very high exposure category.

Data source: Serro 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 Serro Compares to Other Months

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

This table compares monthly weather conditions in Serro, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	22°C (72°F)	130 mm (5.1 inches)	80%	extreme
February Weather	21°C (71°F)	268 mm (10.5 inches)	84%	extreme
March Weather	21°C (70°F)	161 mm (6.3 inches)	86%	extreme
April Weather	20°C (68°F)	80 mm (3.2 inches)	83%	extreme
May Weather	18°C (65°F)	47 mm (1.8 inches)	78%	very high
June Weather	17°C (63°F)	12 mm (0.5 inches)	77%	very high
July Weather	16°C (62°F)	8 mm (0.3 inches)	74%	very high
August Weather	17°C (63°F)	18 mm (0.7 inches)	69%	extreme
September Weather	20°C (68°F)	32 mm (1.2 inches)	61%	extreme
October Weather	21°C (71°F)	139 mm (5.5 inches)	47%	extreme
November Weather	21°C (70°F)	207 mm (8.2 inches)	54%	extreme
December Weather	21°C (71°F)	274 mm (10.8 inches)	60%	extreme