Weather in Brazil for September 2025
In general, the average temperature in Brazil at the beginning of September is 26.4 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 28 °C by the end of September.
With an average of 5 rainy days, Brazil experiences minimal rainfall in September.
Temperatures
Rain 🌧️
Brazil in September average weather
| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  27° | 2  26° | 3 26° | 4 29° | 5  29° | 6  22° | 7 26° |
| 8 29° | 9 28° | 10 28° | 11 30° | 12 31° | 13 32° | 14  31° |
| 15 23° | 16 26° | 17 25° | 18 27° | 19 27° | 20 27° | 21 28° |
| 22 29° | 23 28° | 24 31° | 25 29° | 26 30° | 27 33° | 28 22° |
| 29 24° | 30 27° |
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Temperatures trend during September in Brazil
September weather day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. | Partly cloudy | 27° /18° | 0 mm | 8 | |
| 2 Sept. | Sunny | 26° /19° | 0.2 mm | 7 | |
| 3 Sept. | Sunny | 26° /20° | 0 mm | 8 | |
| 4 Sept. | Sunny | 29° /20° | 0 mm | 8 | |
| 5 Sept. | Light drizzle | 29° /20° | 0.6 mm | 7 | |
| 6 Sept. | Light rain shower | 22° /19° | 3.5 mm | 6 | |
| 7 Sept. | Patchy rain possible | 26° /19° | 0.4 mm | 7 | |
| 8 Sept. | Sunny | 29° /20° | 0 mm | 8 | |
| 9 Sept. | Sunny | 28° /20° | 0 mm | 8 | |
| 10 Sept. | Sunny | 28° /20° | 0 mm | 8 | |
| 11 Sept. | Sunny | 30° /21° | 0 mm | 8 | |
| 12 Sept. | Sunny | 31° /21° | 0 mm | 8 | |
| 13 Sept. | Sunny | 32° /22° | 0 mm | 9 | |
| 14 Sept. | Overcast | 31° /21° | 0 mm | 8 | |
| 15 Sept. | Overcast | 23° /19° | 1.9 mm | 6 | |
| 16 Sept. | Partly cloudy | 26° /18° | 1.3 mm | 7 | |
| 17 Sept. | Sunny | 25° /20° | 1.3 mm | 7 | |
| 18 Sept. | Sunny | 27° /20° | 0.3 mm | 7 | |
| 19 Sept. | Sunny | 27° /19° | 0 mm | 8 | |
| 20 Sept. | Sunny | 27° /20° | 0 mm | 8 | |
| 21 Sept. | Sunny | 28° /21° | 0.8 mm | 7 | |
| 22 Sept. | Sunny | 29° /21° | 0 mm | 8 | |
| 23 Sept. | Sunny | 28° /22° | 0 mm | 8 | |
| 24 Sept. | Sunny | 31° /22° | 0 mm | 8 | |
| 25 Sept. | Partly cloudy | 29° /22° | 0 mm | 8 | |
| 26 Sept. | Partly cloudy | 30° /22° | 0.2 mm | 8 | |
| 27 Sept. | Partly cloudy | 33° /22° | 0.5 mm | 9 | |
| 28 Sept. | Light rain shower | 22° /20° | 3.9 mm | 6 | |
| 29 Sept. | Patchy rain possible | 24° /19° | 0.3 mm | 6 | |
| 30 Sept. | Patchy rain possible | 27° /18° | 0 mm | 7 | |
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Guide for Brazil in September
In September, Brazil experiences a transition from winter to spring, resulting in varied weather conditions across the country. At the beginning of the month, the southern regions, including cities like Sao Paulo and Rio de Janeiro, typically have mild temperatures ranging from 15° to 25°.
These areas may also experience occasional rainfall, contributing to the lush greenery and vibrant flora that Brazil is known for.
Moving towards the end of September, the northern regions, such as Manaus and the Amazon rainforest, tend to have warmer and more humid weather, with temperatures averaging around 25° to 35°.
These areas may also experience brief, intense rain showers, which are essential for the diverse ecosystems and wildlife found in the Amazon region.
Overall, September in Brazil offers a diverse range of weather conditions, making it an exciting time to visit and explore the country's natural beauty. Whether you prefer the milder climate of the south or the tropical warmth of the north, Brazil has something to offer for every type of traveler.
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Brazil in September - FAQ
September rainfall patterns in Brazil
UV exposure in Brazil during September
Quick links
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