Rio Branco Weather in September
What's the weather like in Rio Branco (Acre) in September 2024?
The climate in Rio Branco during September can be summarized as hot, humid and damp.
September is in the spring in Rio Branco and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a steamy 33°C (91°F), whilst at night 21°C (69°F) is normal.
| Daytime temperature | 32.9°C 91.1°F |
|---|---|
| Nightly temperature | 20.8°C 69.4°F |
| Average temperature | 26.8°C 80.2°F |
| Daily sunshine | 5.2 hrs |
| Avg rainfall | 101 mm 4 ins |
| Rainy days | 11 days |
| Sea temperature | 20.9°C 69.7°F |
| Humidity | 78% |
| Windspeed | 5kph 3 mph |
On average September is the 5th driest month of the year in Rio Branco with around 101mm 4 inches of rain making it a damp time to visit. This rainfall is typically spread over 11 days, although this may vary considerably.
On the flip side this corresponds to an average of 5.2 hours of sunshine per day.
September temperatures in Rio Branco
September rainfall
September hourly sunshine
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Rio Branco in September 2024.
Other monthly averages
Best places to visit in September
Rio Branco weather stats
| Hottest month: | October | 32.3°C 90.1°F |
|---|---|---|
| Driest month: | July | 32mm 1.3ins |
| Sunniest month: | July | 7.1hrs |
| Coldest month: | June | 30°C 86°F |
| Wettest month: | January | 281mm 11.1ins |
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