May Weather in Monte Siao, Brazil

Last updated: August 22, 2025

In May, the average temperature in Monte Siao, Brazil hovers around 18°C (65°F). Expect a range that can dip to a chilly 2°C (35°F) and rise to a warm 29°C (85°F). Be prepared for some moisture as 39 mm (1.5 in) of precipitation may fall over the course of 4 days. With an average humidity of 79%, you might want to stay hydrated as you explore this vibrant locale!

May Temperature in Monte Siao

In May in Monte Siao, the average temperature is 18°C (65°F). The maximum can reach 29°C (85°F), while the minimum can drop as low as 2°C (35°F). This mild climate makes Monte Siao an ideal destination for travelers looking to explore comfortably.

May Weather in Monte Siao: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Monte Siao, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Monte Siao, May typically has an average temperature of 18°C (65°F), with highs reaching up to 29°C (85°F) and lows dropping to around 2°C (35°F).

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

May Precipitation in Monte Siao

In Monte Siao in May, the precipitation amount is 39 mm (1.5 in) spread over a period of 4 days.

May Precipitation Trends in Monte Siao

The chart displays monthly precipitation patterns in Monte Siao, 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 Monte Siao, May typically receives around 39 mm (1.5 inches) of precipitation spread over approximately 4 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 Monte Siao

In Monte Siao in May, humidity is 79%. With an average temperature of 18°C (65°F), this humidity feels like walking through a warm mist, making traveling slightly uncomfortable and sticky, but offering a refreshing escape when you find moments of shade or a breeze.

May Average Humidity in Monte Siao

This chart illustrates the average monthly humidity levels in Monte Siao, 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 Monte Siao is approximately 79%, 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 Monte Siao

In Monte Siao in May, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Monte Siao.

Maximum UV Index Levels in Monte Siao for May

The chart shows the monthly maximum UV Index (UVI) for Monte Siao 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 Monte Siao typically reaches 8, which falls under the very high exposure category.

Data source: Monte Siao 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 Monte Siao Compares to Other Months

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

This table compares monthly weather conditions in Monte Siao, 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)	175 mm (6.9 inches)	88%	extreme
February Weather	23°C (73°F)	153 mm (6.0 inches)	88%	extreme
March Weather	22°C (73°F)	107 mm (4.2 inches)	87%	extreme
April Weather	21°C (69°F)	43 mm (1.7 inches)	84%	extreme
May Weather	18°C (65°F)	39 mm (1.5 inches)	79%	very high
June Weather	18°C (64°F)	17 mm (0.6 inches)	77%	high
July Weather	17°C (62°F)	10 mm (0.4 inches)	72%	very high
August Weather	18°C (65°F)	36 mm (1.4 inches)	65%	very high
September Weather	22°C (72°F)	38 mm (1.5 inches)	58%	extreme
October Weather	22°C (72°F)	117 mm (4.6 inches)	50%	extreme
November Weather	22°C (72°F)	126 mm (5.0 inches)	75%	extreme
December Weather	23°C (73°F)	163 mm (6.4 inches)	80%	extreme