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August Weather in Sao Joao, Brazil

Last updated: August 22, 2025

In August, the average temperature in Sao Joao, Brazil is a pleasant 20°C (69°F). While you can expect a minimum of 15°C (59°F), the highs can reach up to 28°C (83°F). Be prepared for some rain, as 83 mm (3.3 in) of precipitation is spread across approximately 23 days. With an average humidity of 84%, it's a great time to explore the area's natural beauty!

August Temperature in Sao Joao

In August in Sao Joao, the average temperature is a pleasant 20°C (69°F), with maximums reaching up to 28°C (83°F) and minimums dipping as low as 15°C (59°F). This makes it an ideal time for travelers to enjoy outdoor activities and sightseeing in comfortable weather.

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

The chart illustrates August 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, August typically has an average temperature of 20°C (69°F), with highs reaching up to 28°C (83°F) and lows dropping to around 15°C (59°F).
JanFebMarAprMayJunJulAugSepOctNovDec757676747270696970737475
Data source: Temperature data for Sao Joao generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

August Precipitation in Sao Joao

In Sao Joao in August, the precipitation amount is 83 mm (3.3 in) spread over 23 days.

August Precipitation Trends in Sao Joao

The chart displays monthly precipitation patterns in Sao Joao, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Sao Joao, August typically receives around 83 mm (3.3 inches) of precipitation spread over approximately 23 days.
JanFebMarAprMayJunJulAugSepOctNovDec465098911111031248370393739
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Sao Joao

In Sao Joao in August humidity is 84%. With an average temperature of 20°C (69°F), this humidity feels like walking through a warm, moist blanket, making travel feel heavy and slightly fatigued as the heat clings to your skin and leaves you yearning for a refreshing breeze.

August Average Humidity in Sao Joao

This chart illustrates the average monthly humidity levels in Sao Joao, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Sao Joao is approximately 84%, 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 August generated using information from the Copernicus Climate Change Service.

August UV Index in Sao Joao

In Sao Joao in August, 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 August

The chart shows the monthly maximum UV Index (UVI) for Sao Joao in August, 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 August, the maximum UV index in Sao Joao typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151415141211111214141515
Data source: Sao Joao August 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 August 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 August’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 August’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

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