May Weather in Uniao, Brazil

Last updated: August 22, 2025

In May, the average temperature in Uniao, Brazil is a warm 27°C (81°F). You can expect the minimum temperature to drop to around 22°C (71°F), while it can soar up to a sizzling 35°C (95°F). Keep in mind that 109 mm (4.3 in) of precipitation is likely to occur over 15 days, contributing to a relatively high average humidity of 88%. Be prepared for a mix of warmth and moisture!

May Temperature in Uniao

In May in Uniao, the average temperature is 27°C (81°F). The maximum can reach 35°C (95°F), while the minimum can be as low as 22°C (71°F). This climate makes Uniao an ideal destination for travelers seeking warm and pleasant weather.

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

The chart illustrates May temperature patterns in Uniao, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Uniao, May typically has an average temperature of 27°C (81°F), with highs reaching up to 35°C (95°F) and lows dropping to around 22°C (71°F).

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

May Precipitation in Uniao

In Uniao in May, the precipitation amount is 109 mm (4.3 in) spread over 15 days.

May Precipitation Trends in Uniao

The chart displays monthly precipitation patterns in Uniao, 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 Uniao, May typically receives around 109 mm (4.3 inches) of precipitation spread over approximately 15 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 Uniao

In Uniao in May, humidity is 88%. With an average temperature of 27°C (81°F), this humidity feels like a warm, thick blanket wrapping around you as you travel, making every step feel more laborious and requiring frequent breaks to cool down and hydrate.

May Average Humidity in Uniao

This chart illustrates the average monthly humidity levels in Uniao, 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 Uniao is approximately 88%, 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 Uniao

In Uniao in May, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in Uniao.

Maximum UV Index Levels in Uniao for May

The chart shows the monthly maximum UV Index (UVI) for Uniao 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 Uniao typically reaches 13, which falls under the extreme exposure category.

Data source: Uniao 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 Uniao Compares to Other Months

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

This table compares monthly weather conditions in Uniao, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	27°C (81°F)	201 mm (7.9 inches)	90%	extreme
February Weather	27°C (80°F)	325 mm (12.8 inches)	91%	extreme
March Weather	27°C (80°F)	385 mm (15.1 inches)	92%	extreme
April Weather	27°C (81°F)	301 mm (11.8 inches)	93%	extreme
May Weather	27°C (81°F)	109 mm (4.3 inches)	88%	extreme
June Weather	28°C (82°F)	15 mm (0.6 inches)	75%	extreme
July Weather	28°C (83°F)	17 mm (0.7 inches)	52%	extreme
August Weather	29°C (84°F)	3 mm (0.1 inches)	42%	extreme
September Weather	30°C (87°F)	2 mm (0.1 inches)	36%	extreme
October Weather	31°C (88°F)	5 mm (0.2 inches)	35%	extreme
November Weather	30°C (86°F)	48 mm (1.9 inches)	43%	extreme
December Weather	29°C (85°F)	87 mm (3.4 inches)	76%	extreme