Weather in San Martín in December
San Martín, Argentina averages a high of 31.2°C (88.2°F) and low of 19°C (66.2°F) in December, with 6 rain days and 13.1 hours of daily sunshine. Travel score: 90.5/100 (Excellent). The best time to visit San Martín is November.
High
31°C88°F
Low
19°C66°F
🌧️
6
rain days
☀️
13.1
hrs/day sunshine
💧
41%
humidity
91— Excellent
December in San Martín is hot and mostly dry — excellent conditions for exploring.
What are the average temperatures in San Martín?
How much does it rain in San Martín in December?
San Martín receives an average of 32.6mm of rainfall across 6 rainy days in December. The annual total is 255.1mm.
What should I pack for San Martín in December?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
👕
Light, breathable clothing
Hot weather with highs around 31°C
🧢
Sun hat or cap
Protection from intense sun
🧴
Sunscreen SPF 30+
13 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
Recommended
🧥
Evening jacket or cardigan
Temperature drops 12°C from day to night
Traveling to Argentina in December?
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