Weather in Rio de Janeiro in September
Rio de Janeiro, Brazil averages a high of 26.7°C (80.1°F) and low of 18.8°C (65.8°F) in September, with 10 rain days and 9 hours of daily sunshine. Travel score: 80.4/100 (Excellent). The best time to visit Rio de Janeiro is August.
High
27°C80°F
Low
19°C66°F
🌧️
10
rain days
☀️
9
hrs/day sunshine
💧
77%
humidity
80— Excellent
September in Rio de Janeiro is warm and occasionally wet — excellent conditions for exploring.
What are the average temperatures in Rio de Janeiro?
How much does it rain in Rio de Janeiro in September?
Rio de Janeiro receives an average of 75.4mm of rainfall across 10 rainy days in September. The annual total is 1484.2mm.
What should I pack for Rio de Janeiro in September?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
👕
Light layers and t-shirts
Warm weather around 27°C
🧴
Sunscreen SPF 30+
9 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
Recommended
🧥
Light rain jacket
Some rainy days expected (10 days)
☔
Umbrella
Be prepared for occasional showers
Traveling to Brazil in September?
Don't let a public holiday surprise you — restaurants, shops, and attractions may be closed.
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Data based on 1994–2024 averages · Last updated: 2024-12-31