When to go · September

Argentina in September

A solid time to go

Spring begins

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Daytime high

19°C

66°F

Overnight low

10°C

50°F

Rainfall

70 mm

moderate

Crowd levels

low

quiet

Prices

low

value window

What to expect in Argentina in September

September brings mild weather to Argentina, with daytime highs around 19°C (66°F) and overnight lows near 10°C (50°F). Skies are typically dry with occasional showers, with about 70 mm of rainfall on average. Spring begins.

September is a quiet stretch — most attractions are easy to access and you'll often have spaces to yourself. It's one of the best-value windows of the year for both flights and hotels. Peak season runs January–February (Patagonia), November–December (Buenos Aires), for context.

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