When to go · San Juan
San Juan in May
Great month. Inside San Juan's best window: Mar–May, Sep–Nov.
Key facts
- Verdict
- Great
- Temperature
- 21°C (70°F)70°F (21°C) / 6°C (43°F)43°F (6°C)
- average high / low
- Rain days
- 1
- Crowds
- Low
- Argentina overall
- Prices
- Low
- Argentina overall
Verdict
Inside San Juan's best window: Mar–May, Sep–Nov.
Is another month better than May?
No other month rates higher than May for San Juan in this guide.
Weather in May
- San JuanHighs around 21 °C (70 °F), lows around 6 °C (43 °F), rain on about 1 dayHighs around 70 °F (21 °C), lows around 43 °F (6 °C), 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
- Low
Argentina overall: Patagonia closing down for winter; Buenos Aires, Iguazú and the Northwest still good.
Compare two months
Weather, crowds and prices for any two months in San Juan, side by side.
Verdict
May: Great
Mar: Great
Daytime high
May: 21 °C (70 °F)70 °F (21 °C)
Mar: 31 °C (88 °F)88 °F (31 °C)
Night low
May: 6 °C (43 °F)43 °F (6 °C)
Mar: 16 °C (61 °F)61 °F (16 °C)
Rain days
May: 1 (better)
Mar: 3
Crowds
May: Low
Mar: Medium
Prices
May: Low
Mar: Medium
Festivals listed
May: 0
Mar: 1
May: Inside San Juan's best window: Mar–May, Sep–Nov.
March: Inside San Juan's best window: Mar–May, Sep–Nov.
San Juan: figures are long-term averages from this guide, not a forecast.
What to pack
- A warm layer for the evenings