South America weather in December 2025

Check South America weather in December before you book your next holiday. Long-term weather averages give the best indication of the weather in December 2025 and include figures for temperature, sunshine and rainfall for South America.

Hottest places to go in South America in December

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

South America regions

Recommended for South America

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