Weather in Brazil for October 2026
Yellow warning – thunderstorms - See hour by hour.
Until now, October 2026 in Brazil is slightly cooler than the historical average by 1.3 °C.
The forecast for the upcoming days in Brazil predicts a temperature of 23.9 °C, which is slightly above the historical average.
In general, the average temperature in Brazil at the beginning of October is 28.3 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 22.1 °C by the end of October.
Brazil in October brings notable rainfall, with an average of 18 rainy days and a total precipitation of 163.1 mm.
Is October a good time to visit Brazil? check out the best time to travel to Brazil page.
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Brazil Weather October
What’s the Weather Like in Brazil This October?
Temperatures trend during October in Brazil
October weather in Brazil day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Oct. |  Light rain | 29° /18° | 4.9 mm | 7 | |
| 2 Oct. |  Patchy rain possible | 27° /17° | 0.7 mm | 6 | |
| 3 Oct. | Light rain | 27° /17° | 2.6 mm | 6 | |
| 4 Oct. | Light rain | 27° /18° | 6.3 mm | 6 | |
| 5 Oct. | Light rain shower | 29° /18° | 2.3 mm | 6 | |
| 6 Oct. | Light rain | 31° /19° | 5.2 mm | 7 | |
| 7 Oct. | Light rain | 28° /18° | 5.3 mm | 6 | |
| 8 Oct. |  Patchy light rain with thunder | 29° /17° | 9.8 mm | 8 | |
| 9 Oct. |  Moderate rain | 25° /18° | 10.1 mm | 5 | |
| 10 Oct. | Light rain | 25° /18° | 7.5 mm | 6 | |
| 11 Oct. | Moderate rain | 28° /18° | 10.2 mm | 6 | |
| 12 Oct. | Light rain | 29° /19° | 2.7 mm | 6 | |
| 13 Oct. | Moderate rain | 23° /17° | 14.5 mm | 5 | |
| 14 Oct. | Patchy rain possible | 25° /17° | 2.1 mm | 5 | |
| 15 Oct. | Light rain | 27° /17° | 2.9 mm | 6 | |
| 16 Oct. | Patchy light rain with thunder | 30° /18° | 9 mm | 6 | |
| 17 Oct. |  Moderate rain at times | 29° /18° | 5.4 mm | 7 | |
| 18 Oct. | Light rain | 25° /17° | 7.3 mm | 7 | |
| 19 Oct. | Light rain | 20° /14° | 6.2 mm | 5 | |
| 20 Oct. | Light rain shower | 19° /14° | 2.2 mm | 5 | |
| 21 Oct. | Patchy rain possible | 24° /15° | 0.3 mm | 5 | |
| 22 Oct. | Light rain | 25° /17° | 5.3 mm | 7.9 | |
| 23 Oct. | Light rain | 23° /17° | 5.3 mm | 12.4 | |
| 24 Oct. | Light rain | 23° /17° | 6.7 mm | 10.9 | |
| 25 Oct. |  Heavy rain | 22° /17° | 45.7 mm | 2.4 | |
| 26 Oct. | Light rain | 19° /14° | 2.9 mm | 5 | |
| 27 Oct. | Patchy rain possible | 21° /13° | 0.1 mm | 6 | |
| 28 Oct. | Patchy rain possible | 20° /15° | 2.3 mm | 6 | |
| 29 Oct. | Moderate rain | 21° /17° | 19.6 mm | 6 | |
| 30 Oct. | Moderate rain | 25° /18° | 15 mm | 6 | |
| 31 Oct. | Light rain | 27° /18° | 8.5 mm | 7 | |
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Guide for Brazil in October
In October, Brazil experiences a transition from spring to summer, resulting in varied weather conditions across the country. At the beginning of the month, southern regions such as Sao Paulo and Rio de Janeiro typically enjoy mild temperatures with occasional rain showers.
The average temperature in Sao Paulo hovers around 20°, while Rio de Janeiro experiences slightly warmer weather at around 23°. These regions also benefit from longer daylight hours, making it an ideal time for outdoor activities and sightseeing.
Moving towards the end of October, the northern regions, including the Amazon rainforest, begin to experience increasing temperatures and humidity. Cities like Manaus can expect temperatures to rise to around 30°, accompanied by high humidity levels.
This period marks the onset of the wet season in the Amazon, with frequent afternoon thunderstorms and heavy rainfall.
In summary, October in Brazil offers a diverse weather experience, from mild and pleasant conditions in the south to warmer and more humid weather in the north.
Travelers should be prepared for potential rain showers in the southern regions and increased humidity in the north as the month progresses.