Santiago weather
Our guide to the weather in Santiago during December
We've looked at the most up-to-date weather data for Santiago, covering the last 12 years up to 2024, plus we've asked our team of travel bloggers for their first-hand experiences in order to answer the most frequently asked questions about Santiago weather in December.
How warm is it in Santiago during December?
The temperature reaches around 24℃ during the daytime in December, falling away to 11℃ at night. Remember that in December it's summer in the souther hemisphere! The UV index will be moderate at this time of year, so not something to worry about for the average person. However, if you're going to be outside for long periods it's worth wearing a broad spectrum SPF 30+ sunscreen and UV-blocking sunglasses. Remember that bright surfaces, such as water and sand increase UV exposure.
Does it rain in Santiago during December?
The answer is no. Santiago is typically bone dry in December. There's a small chance that you'll catch a thunderstorm during your trip.
Is it windy in Santiago during December?
You're unlikely to experience any strong winds. Expect a light breeze that picks up slightly at times in December. With moderate humidity and mild air temperatures, the breeze will have a slight cooling effect.
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December