South America weather in September 2026

Check South America weather in September before you book your next holiday. Long-term weather averages give the best indication of the weather in September 2026 and include figures for temperature, sunshine and rainfall for South America.

Hottest places to go in South America in September

Below are average maximum temperatures at popular countries, regions and places in South America in September. Select a holiday destination to see more weather parameters.

South America regions

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