May Weather in Portel, Brazil

Last updated: August 22, 2025

In May, the average temperature in Portel, Brazil hovers around 27°C (81°F), with a comfortable minimum of 22°C (72°F) and a maximum reaching up to 34°C (94°F). Expect a fair share of rain, as 254 mm (10.0 in) of precipitation falls across 27 days. With an average humidity of 90%, prepare for a tropical ambiance that keeps the air warm and moist.

May Temperature in Portel

In May in Portel, the average temperature is 27°C (81°F), with maximums reaching 34°C (94°F) and minimums dipping to 22°C (72°F). This pleasant climate makes it an ideal time for travelers to explore and enjoy outdoor activities.

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

The chart illustrates May temperature patterns in Portel, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Portel, May typically has an average temperature of 27°C (81°F), with highs reaching up to 34°C (94°F) and lows dropping to around 22°C (72°F).

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

May Precipitation in Portel

In Portel in May, the total precipitation amount is 254 mm (10.0 in) over a span of 27 days.

May Precipitation Trends in Portel

The chart displays monthly precipitation patterns in Portel, 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 Portel, May typically receives around 254 mm (10.0 inches) of precipitation spread over approximately 27 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 Portel

In Portel in May, humidity is 90%. With an average temperature of 27°C (81°F), this humidity feels like walking through a heavy fog, making outdoor activities uncomfortable and exhausting, and leaving travelers drenched in sweat within minutes.

May Average Humidity in Portel

This chart illustrates the average monthly humidity levels in Portel, 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 Portel is approximately 90%, 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 Portel

In Portel in May, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in Portel, you can check here.

Maximum UV Index Levels in Portel for May

The chart shows the monthly maximum UV Index (UVI) for Portel 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 Portel typically reaches 14, which falls under the extreme exposure category.

Data source: Portel 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 Portel Compares to Other Months

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

This table compares monthly weather conditions in Portel, 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)	231 mm (9.1 inches)	85%	extreme
February Weather	26°C (80°F)	343 mm (13.5 inches)	69%	extreme
March Weather	26°C (79°F)	413 mm (16.3 inches)	70%	extreme
April Weather	26°C (80°F)	408 mm (16.1 inches)	85%	extreme
May Weather	27°C (81°F)	254 mm (10.0 inches)	90%	extreme
June Weather	27°C (81°F)	151 mm (6.0 inches)	82%	extreme
July Weather	27°C (81°F)	90 mm (3.5 inches)	66%	extreme
August Weather	28°C (83°F)	52 mm (2.0 inches)	51%	extreme
September Weather	28°C (83°F)	31 mm (1.2 inches)	47%	extreme
October Weather	29°C (84°F)	29 mm (1.2 inches)	46%	extreme
November Weather	28°C (83°F)	106 mm (4.2 inches)	46%	extreme
December Weather	27°C (82°F)	159 mm (6.3 inches)	70%	extreme