When to go · San Juan
San Juan in September
Great month. Inside San Juan's best window: Mar–May, Sep–Nov.
Key facts
- Verdict
- Great
- Temperature
- 24°C75°F / 7°C45°F
- average high / low
- Rain days
- 1
- Crowds
- Low
- Argentina overall
- Prices
- Medium
- Argentina overall
Verdict
GreatBest and avoid months for San Juan
Inside San Juan's best window: Mar–May, Sep–Nov.
Weather in September
- San JuanHighs around 24 °C, lows around 7 °C, rain on about 1 dayHighs around 75 °F, lows around 45 °F, rain on about 1 day
- Cuyo (Mendoza and the high Andes), Argentina · Mendoza, San Juan, Aconcaguafine
Dry and sunny; harvest (vendimia) in March; the pass to Chile can close with snow in June–September.
Crowds and prices
- Crowds · Argentina overall
- Low
- Prices · Argentina overall
- Medium
Argentina overall: Spring: whales at Valdés, Iguazú and the Northwest at their best, jacaranda starting in Buenos Aires.
What to pack
- A warm layer for the evenings