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When to go · San Juan

San Juan in January

Avoid month. Listed as a month to avoid: Dec–Feb (35–40 °C days), and the summer holiday weeks.

Key facts

Verdict
Avoid
Temperature
35°C / 20°C
average high / low
Rain days
4
Crowds
High
Argentina overall
Prices
High
Argentina overall

Verdict

AvoidBest and avoid months for San Juan

Listed as a month to avoid: Dec–Feb (35–40 °C days), and the summer holiday weeks.

Weather in January

Long-term averages
  • San JuanHighs around 35 °C, lows around 20 °C, rain on about 4 days
  • Cuyo (Mendoza and the high Andes), Argentina · Mendoza, San Juan, Aconcaguahot

    Dry and sunny; harvest (vendimia) in March; the pass to Chile can close with snow in June–September.

Crowds and prices

Crowds · Argentina overall
High
Prices · Argentina overall
High

Argentina overall: Peak summer holidays: Patagonia at its best but booked out, Buenos Aires hot and half-empty, Northwest rainy.

High-price month: see what to book ahead.

What to pack

  • Light, breathable clothes, a sun hat and sunscreen

Build the full packing list for your trip →

Across Argentina in January →