nomadseason

May Weather in Sao Joao, Brazil

Last updated: August 22, 2025

In Sao Joao, Brazil, the average temperature in May hovers around 22°C (73°F), making it a pleasant time to visit. Expect a minimum of 17°C (63°F) and a peak of 31°C (88°F) during this month. Be prepared for some rain, with a total precipitation of 111 mm (4.4 in) spread across 22 days. Additionally, the air is quite humid, with an average humidity of 90%, creating a warm and tropical atmosphere.

May Temperature in Sao Joao

In May in Sao Joao, the average temperature is 22°C (73°F), making it a pleasant time to visit. Maximum temperatures can reach 31°C (88°F), while minimums can dip to 17°C (63°F), so pack accordingly for both warm days and cooler evenings. This mix of temperatures provides a comfortable climate for exploring and enjoying outdoor activities.

May Weather in Sao Joao: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Sao Joao, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sao Joao, May typically has an average temperature of 22°C (73°F), with highs reaching up to 31°C (88°F) and lows dropping to around 17°C (63°F).
JanFebMarAprMayJunJulAugSepOctNovDec757676747270696970737475
Data source: Temperature data for Sao Joao generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Sao Joao

In Sao Joao in May, the precipitation amount is 111 mm (4.4 in) spread over 22 days.

May Precipitation Trends in Sao Joao

The chart displays monthly precipitation patterns in Sao Joao, 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 Sao Joao, May typically receives around 111 mm (4.4 inches) of precipitation spread over approximately 22 days.
JanFebMarAprMayJunJulAugSepOctNovDec465098911111031248370393739
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

May Humidity in Sao Joao

In Sao Joao in May humidity is 90%. With an average temperature of 22°C (73°F), this humidity feels like you're walking through a warm, heavy blanket, making travel quite strenuous and causing you to sweat excessively, so it's crucial to stay hydrated and take breaks often.

May Average Humidity in Sao Joao

This chart illustrates the average monthly humidity levels in Sao Joao, 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 Sao Joao is approximately 90%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%87%88%89%90%89%86%84%79%74%71%72%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Sao Joao

In Sao Joao in May, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in Sao Joao.

Maximum UV Index Levels in Sao Joao for May

The chart shows the monthly maximum UV Index (UVI) for Sao Joao 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 Sao Joao typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151415141211111214141515
Data source: Sao Joao 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 Sao Joao Compares to Other Months

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

This table compares monthly weather conditions in Sao Joao, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather24°C (75°F)45 mm (1.8 inches)84%extreme
February Weather24°C (76°F)50 mm (2.0 inches)87%extreme
March Weather24°C (76°F)98 mm (3.8 inches)88%extreme
April Weather24°C (75°F)91 mm (3.6 inches)89%extreme
May Weather22°C (73°F)111 mm (4.4 inches)90%extreme
June Weather21°C (71°F)103 mm (4.1 inches)89%extreme
July Weather20°C (69°F)124 mm (4.9 inches)86%extreme
August Weather20°C (69°F)83 mm (3.3 inches)84%extreme
September Weather21°C (71°F)70 mm (2.7 inches)79%extreme
October Weather23°C (73°F)39 mm (1.5 inches)74%extreme
November Weather24°C (75°F)37 mm (1.5 inches)71%extreme
December Weather24°C (75°F)39 mm (1.5 inches)72%extreme

Compare Sao Joao's Climate with Cities Worldwide