May Weather in Grajau, Brazil

Last updated: August 22, 2025

In Grajau, Brazil during May, the average temperature hovers around 27°C (81°F). Expect a comfortable minimum of 20°C (68°F) and a warm maximum of 35°C (94°F). Be prepared for moderate precipitation with about 45 mm (1.8 in) spread over 8 days, and a notable average humidity of 89%, contributing to that tropical feel.

May Temperature in Grajau

In May in Grajau, the average temperature is 27°C (81°F), with maximums reaching 35°C (94°F) and minimums dropping to as low as 20°C (68°F). This warm climate makes Grajau an ideal destination for travelers looking to enjoy outdoor activities and soak up the sun.

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

The chart illustrates May temperature patterns in Grajau, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Grajau, May typically has an average temperature of 27°C (81°F), with highs reaching up to 35°C (94°F) and lows dropping to around 20°C (68°F).

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

May Precipitation in Grajau

In Grajau in May, the precipitation amount is 45 mm (1.8 in) over the course of 8 days.

May Precipitation Trends in Grajau

The chart displays monthly precipitation patterns in Grajau, 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 Grajau, May typically receives around 45 mm (1.8 inches) of precipitation spread over approximately 8 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 Grajau

In Grajau in May humidity is 89%. With an average temperature of 27°C (81°F), this humidity feels like a wet blanket enveloping you, making outdoor activities challenging and travel a little less comfortable.

May Average Humidity in Grajau

This chart illustrates the average monthly humidity levels in Grajau, 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 Grajau is approximately 89%, 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 Grajau

In Grajau 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 Grajau.

Maximum UV Index Levels in Grajau for May

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

Data source: Grajau 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 Grajau Compares to Other Months

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

This table compares monthly weather conditions in Grajau, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	26°C (80°F)	122 mm (4.8 inches)	91%	extreme
February Weather	26°C (80°F)	214 mm (8.4 inches)	91%	extreme
March Weather	26°C (79°F)	193 mm (7.6 inches)	91%	extreme
April Weather	27°C (80°F)	146 mm (5.8 inches)	94%	extreme
May Weather	27°C (81°F)	45 mm (1.8 inches)	89%	extreme
June Weather	27°C (81°F)	4 mm (0.2 inches)	80%	extreme
July Weather	27°C (81°F)	3 mm (0.1 inches)	66%	extreme
August Weather	28°C (83°F)	2 mm (0.1 inches)	53%	extreme
September Weather	29°C (84°F)	9 mm (0.4 inches)	46%	extreme
October Weather	29°C (84°F)	36 mm (1.4 inches)	45%	extreme
November Weather	28°C (82°F)	88 mm (3.4 inches)	53%	extreme
December Weather	27°C (82°F)	124 mm (4.9 inches)	82%	extreme