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When to go · Buenos Aires

Buenos Aires in September

Good month. Spring; jacaranda and mild weather.

Key facts

Verdict
Good
Temperature
18°C (64°F) / 10°C (50°F)
average high / low
Rain days
8
Crowds
Low
Argentina overall
Prices
Medium
Argentina overall

Verdict

GoodVoykit month rating for Buenos Aires

Spring; jacaranda and mild weather.

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
  • Buenos AiresHighs around 18 °C (64 °F), lows around 10 °C (50 °F), rain on about 8 days
  • Buenos Aires and the Pampas, Argentina · Buenos Aires, La Plata, Mar del Platafine

    Humid 30 °C (86 °F)+ summers; mild spring and autumn are the city season; winters are grey and around 10 °C (50 °F) but rarely freezing.

Spring season

Mild days, jacaranda trees in purple bloom across Recoleta and Palermo; the best walking season.

Watch: Some rain; book ahead around any spring public holiday.

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.

  • Jacaranda bloom

    Spring, peaking around October-November (weather dependent) · Recoleta, Palermo and tree-lined streets citywide

    Purple-flowering trees line many streets; a favourite season for photography and walking.

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.

Compare two months

Weather, crowds and prices for any two months in Buenos Aires, side by side.

  • Verdict

    Sep: Good

    Mar: Great (better)

  • Daytime high

    Sep: 18 °C (64 °F)

    Mar: 26 °C (79 °F)

  • Night low

    Sep: 10 °C (50 °F)

    Mar: 17 °C (63 °F)

  • Rain days

    Sep: 8 (better)

    Mar: 9

  • Crowds

    Sep: Low

    Mar: Medium

  • Prices

    Sep: Medium

    Mar: Medium

  • Festivals listed

    Sep: 1

    Mar: 4

September: Spring; jacaranda and mild weather.

March: Warm; a good month.

Buenos Aires: 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 Argentina in September →