Weather in Rosario in September
Rosario, Argentina averages a high of 20.7°C (69.3°F) and low of 10.2°C (50.4°F) in September, with 5 rain days and 9.6 hours of daily sunshine. Travel score: 82.7/100 (Excellent). The best time to visit Rosario is January.
High
21°C69°F
Low
10°C50°F
🌧️
5
rain days
☀️
9.6
hrs/day sunshine
💧
67%
humidity
83— Excellent
September in Rosario is mild and mostly dry — excellent conditions for exploring.
What are the average temperatures in Rosario?
How much does it rain in Rosario in September?
Rosario receives an average of 58.7mm of rainfall across 5 rainy days in September. The annual total is 971.2mm.
What should I pack for Rosario in September?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
🧥
Mix of light and warm layers
Mild temperatures around 21°C
🧴
Sunscreen SPF 30+
10 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
Traveling to Argentina 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