Weather in Rio das Ostras in September
Rio das Ostras, Brazil averages a high of 26.2°C (79.2°F) and low of 19°C (66.2°F) in September, with 9 rain days and 9.7 hours of daily sunshine. Travel score: 81.4/100 (Excellent). The best time to visit Rio das Ostras is July.
High
26°C79°F
Low
19°C66°F
🌧️
9
rain days
☀️
9.7
hrs/day sunshine
💧
77%
humidity
81— Excellent
September in Rio das Ostras is warm and occasionally wet — excellent conditions for exploring.
What are the average temperatures in Rio das Ostras?
How much does it rain in Rio das Ostras in September?
Rio das Ostras receives an average of 60.5mm of rainfall across 9 rainy days in September. The annual total is 1255.3mm.
What should I pack for Rio das Ostras in September?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
👕
Light layers and t-shirts
Warm weather around 26°C
🧴
Sunscreen SPF 30+
10 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
Recommended
🧥
Light rain jacket
Some rainy days expected (9 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