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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) / 8°C (46°F)
average high / low
Rain days
3
Crowds
Medium
Chile overall
Prices
Medium
Chile overall

Verdict

GoodVoykit month rating for Santiago

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

Long-term averages
  • SantiagoHighs around 20 °C (68 °F), lows around 8 °C (46 °F), 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.

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)

    Mar: 27 °C (81 °F)

  • Night low

    Sep: 8 °C (46 °F)

    Mar: 12 °C (54 °F)

  • 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

Build the full packing list for your trip →

Across Chile in September →