Rio Branco Weather in September

September in Rio Branco brings very high temperatures around 35°C (95°F) during the day, dropping to 22°C (72°F) at night, with quite a bit of rainfall expected, averaging around 86 mm (3.4 in) for the month.

Rainfall in Rio Branco in September

You can expect rain on roughly 11 days based on historical data, averaging 86 mm (3.4 in) for the month. The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.

Temperature in Rio Branco in September

In September, Rio Branco gets very high temperatures, with highs of 35°C (95°F). Nights cool to around 22°C (72°F). Indoor breaks or shaded spots can make the warmer part of the day much more comfortable. With lows of 22°C (72°F), the nights are warm and generally comfortable. While these temperatures are averages, expect some days to be hotter. Choose light, airy clothing to handle the warmth effectively.

Sunshine in Rio Branco in September

The area experiences a moderate amount of sunshine, with approximately 159 hours of sunlight expected. This means a decent mix of sun and overcast.

September in Rio Branco can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.