Weather in Rosario in December
Rosario, Argentina averages a high of 29°C (84.2°F) and low of 18.6°C (65.5°F) in December, with 8 rain days and 12.2 hours of daily sunshine. Travel score: 88.6/100 (Excellent). The best time to visit Rosario is January.
High
29°C84°F
Low
19°C65°F
🌧️
8
rain days
☀️
12.2
hrs/day sunshine
💧
63%
humidity
89— Excellent
December in Rosario is hot and mostly dry — ideal for sightseeing and outdoor activities.
What are the average temperatures in Rosario?
How much does it rain in Rosario in December?
Rosario receives an average of 95.3mm of rainfall across 8 rainy days in December. The annual total is 971.2mm.
What should I pack for Rosario in December?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
👕
Light layers and t-shirts
Warm weather around 29°C
🧴
Sunscreen SPF 30+
12 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
🎉Visiting Argentina in December?
Don't miss any public holidays — check before you book!
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Data based on 1994–2024 averages · Last updated: 2024-12-31