When to go · Santiago
Santiago in September
Good month. Spring; Fiestas Patrias week (around 18 September) is busy.
Key facts
- Verdict
- Good
- Temperature
- 20°C (68°F)68°F (20°C) / 8°C (46°F)46°F (8°C)
- average high / low
- Rain days
- 3
- Crowds
- Medium
- Chile overall
- Prices
- Medium
- Chile overall
Verdict
Spring; Fiestas Patrias week (around 18 September) is busy.
All twelve months in one grid — weather, crowds and prices, with gaps left as unknown.
Is another month better than September?
September is rated good. These months rate higher:
Weather in September
- SantiagoHighs around 20 °C (68 °F), lows around 8 °C (46 °F), rain on about 3 daysHighs around 68 °F (20 °C), lows around 46 °F (8 °C), rain on about 3 days
- Central Chile, Chile · Santiago, Valparaíso, wine valleysfine
Mediterranean: hot dry summers (30 °C (86 °F)+), cool wet winters with smog in Santiago; harvest festivals in March.Mediterranean: hot dry summers (86 °F (30 °C)+), cool wet winters with smog in Santiago; harvest festivals in March.
Spring season
Blossom, warm days and Fiestas Patrias.
Watch: Busy on 18–19 September.
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.
Fiestas Patrias
18–19 September · Nationwide
Public holidays; fondas and barbecues; the city empties.
Crowds and prices
- Crowds · Chile overall
- Medium
- Prices · Chile overall
- Medium
Chile overall: Fiestas Patrias (18–19 Sep): fondas, barbecues, closed businesses; spring in the centre.
Compare two months
Weather, crowds and prices for any two months in Santiago, side by side.
Verdict
Sep: Good
Mar: Great (better)
Daytime high
Sep: 20 °C (68 °F)68 °F (20 °C)
Mar: 27 °C (81 °F)81 °F (27 °C)
Night low
Sep: 8 °C (46 °F)46 °F (8 °C)
Mar: 12 °C (54 °F)54 °F (12 °C)
Rain days
Sep: 3
Mar: 1 (better)
Crowds
Sep: Medium
Mar: Medium
Prices
Sep: Medium
Mar: Medium
Festivals listed
Sep: 1
Mar: 2
September: Spring; Fiestas Patrias week (around 18 September) is busy.
March: Warm and clear; grape harvest.
Santiago: figures are long-term averages from this guide, not a forecast.
What to pack
- A warm layer for the evenings