Weather in San Juan in January
San Juan, Argentina averages a high of 31.8°C (89.2°F) and low of 19.8°C (67.6°F) in January, with 3 rain days and 13 hours of daily sunshine. Travel score: 95.8/100 (Excellent). The best time to visit San Juan is November.
High
32°C89°F
Low
20°C68°F
🌧️
3
rain days
☀️
13
hrs/day sunshine
💧
44%
humidity
96— Excellent
January in San Juan is hot and dry — excellent conditions for exploring.
What are the average temperatures in San Juan?
How much does it rain in San Juan in January?
San Juan receives an average of 16.8mm of rainfall across 3 rainy days in January. The annual total is 164.2mm.
What should I pack for San Juan in January?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
👕
Light, breathable clothing
Hot weather with highs around 32°C
🧢
Sun hat or cap
Protection from intense sun
🧴
Sunscreen SPF 30+
13 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
Traveling to Argentina in January?
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