Last updated: June 24, 2025
In Brazil, United States, the average temperature in September hovers around 21°C (71°F). Expect a range where the minimum dips to a cool 6°C (44°F) and the maximum can soar up to 33°C (92°F). During this month, anticipate approximately 68 mm (2.7 in) of precipitation spread over 6 days, with an average humidity of 69%.
In September in Brazil, the average temperature is 21°C (71°F). Maximums can reach 33°C (92°F), while minimums can be as low as 6°C (44°F). Overall, it's a great time to travel to Brazil for pleasant weather and diverse temperature variations.
In Brazil in September, the precipitation amount is 68 mm (2.7 in) spread over the course of 6 days.
In Brazil in September humidity is 69%. With an average temperature of 21°C (71°F), this humidity feels like a warm embrace, creating a tropical atmosphere that can make outdoor activities feel slightly sticky, yet invigorating for travelers who are ready to embrace the local culture and explore.
In Brazil in September, 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 Brazil.
UV Risk Categories
Weather in Brazil varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Brazil, focusing on differences in temperature, rainfall, humidity, and UV levels.
Temperature | Precipitation | Humidity | UV | |
---|---|---|---|---|
January Weather | -1°C (31°F) | 85 mm (3.4 inches) | 87% | moderate |
February Weather | 1°C (34°F) | 98 mm (3.9 inches) | 85% | moderate |
March Weather | 6°C (44°F) | 130 mm (5.1 inches) | 86% | high |
April Weather | 12°C (53°F) | 105 mm (4.1 inches) | 84% | very high |
May Weather | 18°C (66°F) | 134 mm (5.3 inches) | 79% | very high |
June Weather | 23°C (75°F) | 115 mm (4.5 inches) | 82% | extreme |
July Weather | 25°C (78°F) | 106 mm (4.2 inches) | 79% | very high |
August Weather | 24°C (75°F) | 108 mm (4.3 inches) | 70% | very high |
September Weather | 21°C (71°F) | 68 mm (2.7 inches) | 69% | very high |
October Weather | 15°C (58°F) | 112 mm (4.4 inches) | 76% | high |
November Weather | 6°C (42°F) | 97 mm (3.8 inches) | 88% | moderate |
December Weather | 3°C (37°F) | 90 mm (3.5 inches) | 87% | moderate |