Transit Desk

Climate

Weather in Brazil in September

Weather in Brazil, September
In September, Brazil sees average highs of 30.4°C (87°F) and lows of 18.9°C (66°F), with around 19 mm of rain.

Brazil — September

Brazil September
Daytime high
30.4°C (87°F)
Overnight low
18.9°C (66°F)
Rainfall
19 mm
Best-time rank
Off-peak

How September compares

Brazil, September vs. the annual average (2025)
This month30.4°C (87°F) / 18.9°C (66°F) · 19 mm
Yearly average27.1°C (81°F) / 17.8°C (64°F) · 86 mm

September in Brazil runs 3.3°C (5.9°F) warmer than the yearly average, and is drier than the yearly average. Pack layers you can adjust through the day — mild conditions.

Common questions

What is the weather like in Brazil in September?

Average highs of 30.4°C (87°F) and lows of 18.9°C (66°F), with around 19 mm of rain.

Is September a good time to visit Brazil?

It is an off-peak month for comfort in Brazil; May, June, July tend to be more pleasant.

Updated climate normals, 2025