Best Time to Visit Rio Branco, Acre, Brazil
Month-by-month climate guide for planning a trip to Rio Branco.
Rio Branco does not have a month that clearly fits our sunny profiles. Its practical travel window centres on its warmest (October, 26.5°C / 79.7°F) and driest (July, 83 mm / 3.3 in) months. The drier stretch runs through April–October; the wetter half falls in November–March. At the city itself, monthly average temperatures range from 23.9°C / 75°F in June to 26.5°C / 79.7°F in October, with rainfall from 83 mm / 3.3 in (July) to 200 mm / 7.9 in (March). These are point-value climate normals sampled at Rio Branco, Acre, Brazil's coordinates — usually more actionable for travellers than the country-wide average. Rio Branco's climate is broadly tropical. The full month-by-month table below lets you match your travel window against our five weather profiles.
Recommended months
| Month | Temp | Rain | Feels like |
|---|---|---|---|
| July | 24°C75.2°F | 83 mm3.3″ | Tropical |
| May | 25.1°C77.2°F | 102 mm4″ | Tropical |
| August | 25.2°C77.4°F | 104 mm4.1″ | Tropical |
No month at Rio Branco matches our sunny profiles. The three above are the driest-and-warmest fallback.
Frequently asked questions
When is the best time to visit Rio Branco?
Rio Branco doesn't have a month that clearly matches our sunny profiles. The practical travel window centres on July (driest, ~83 mm / 3.3 in) and October (warmest, 26.5°C / 79.7°F). Because these are point values at the city, they can differ substantially from Brazil's national average.
When is the rainy season in Rio Branco?
The rainy season at Rio Branco, Acre runs through November–March, when monthly rainfall exceeds the annual median of about 147 mm / 5.8 in. The wettest single month is March (200 mm / 7.9 in).
What is the driest month in Rio Branco?
The driest month in Rio Branco is July, averaging about 83 mm / 3.3 in of rainfall. Temperature that month averages 24°C / 75.2°F.
What months should I avoid visiting Rio Branco?
The least comfortable months for travel to Rio Branco — based on point-value climate at the city — are January, February, March, May, June, July, August. These are the wettest or coolest months at this location. Rainfall peaks at 200 mm / 7.9 in in March, and the coldest month averages 23.9°C / 75°F.
Is Rio Branco climate different from Brazil overall?
Yes, usually. Our Rio Branco figures are point-value climate normals sampled at the city itself, while our Brazil figures are area-weighted averages across the whole country. The two can diverge substantially in geographically diverse or elevation-varied countries. The month-by-month table below reflects Rio Branco specifically — usually the more actionable data for a traveller planning to spend time in the city.