When to go · San Luis
San Luis in March
Great month. Inside San Luis's best window: Mar–May, Sep–Nov.
Key facts
- Verdict
- Great
- Temperature
- 27°C (81°F)81°F (27°C) / 15°C (59°F)59°F (15°C)
- average high / low
- Rain days
- 7
- Crowds
- Medium
- Argentina overall
- Prices
- Medium
- Argentina overall
Verdict
Inside San Luis's best window: Mar–May, Sep–Nov.
Is another month better than March?
No other month rates higher than March for San Luis in this guide.
Weather in March
- San LuisHighs around 27 °C (81 °F), lows around 15 °C (59 °F), rain on about 7 daysHighs around 81 °F (27 °C), lows around 59 °F (15 °C), rain on about 7 days
Festivals and holidays
Dates as our data lists them. Moving holidays (lunar and Islamic calendars, Easter) shift every year: check the date for your year before you build a trip on it.
Semana Santa big impact
Easter (Thu–Fri; 25–26 Mar 2027) · Argentina
Domestic travel peak; buses and flights full.
Crowds and prices
- Crowds · Argentina overall
- Medium
- Prices · Argentina overall
- Medium
Argentina overall: Good all round: Mendoza harvest festival, Patagonia calmer, Buenos Aires cooling down.
Compare two months
Weather, crowds and prices for any two months in San Luis, side by side.
Verdict
Mar: Great
Apr: Great
Daytime high
Mar: 27 °C (81 °F)81 °F (27 °C)
Apr: 23 °C (73 °F)73 °F (23 °C)
Night low
Mar: 15 °C (59 °F)59 °F (15 °C)
Apr: 11 °C (52 °F)52 °F (11 °C)
Rain days
Mar: 7
Apr: 5 (better)
Crowds
Mar: Medium
Apr: Medium
Prices
Mar: Medium
Apr: Medium
Festivals listed
Mar: 1
Apr: 1
March: Inside San Luis's best window: Mar–May, Sep–Nov.
April: Inside San Luis's best window: Mar–May, Sep–Nov.
San Luis: figures are long-term averages from this guide, not a forecast.
What to pack
Nothing unusual for the weather this month.