Rio Branco Weather & Climate

Brazil

Rio Branco sees feels-like daytime highs peak around 40.6°C in March and nighttime lows bottom out near 25.1°C in August. January is the wettest month (~255 mm), while July is the driest (~23 mm). For sunshine, July leads with about 64% clear skies.

Best time to visit Rio Branco

Based on mild feels-like temperatures and low rain chances, the most comfortable months are July, June, and August — expect around 25.337.8°C with roughly 15% chance of rain on a given day in July.

Rio Branco climate by month

MonthLow / High °CRain %RainfallClear skiesWind
January30.1° / 38.8°83%255 mm16%2.5 kph
February30.2° / 38.9°78%246 mm16%2.5 kph
March30.7° / 40.6°79%232 mm18%2.5 kph
April30.5° / 40.5°64%160 mm26%2.6 kph
May28.8° / 38.5°41%84 mm39%2.8 kph
June26.3° / 37.8°20%36 mm52%3 kph
July25.3° / 37.8°15%23 mm64%3.1 kph
August25.1° / 38.8°22%39 mm62%3 kph
September27.1° / 39.4°36%77 mm48%2.9 kph
October28.6° / 38.9°55%138 mm32%2.7 kph
November29° / 38.4°68%188 mm22%2.6 kph
December30.1° / 39.8°78%223 mm18%2.5 kph

Feels-like temperatures from long-term historical data; ☀ marks the most comfortable months (mild temperatures, low rain).

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