December · Chile
Best time to visit Santiago in December Weather, crowds & prices
Weather in Santiago in December
Average temperature 21°C, 2 mm of rain, about 30 days with 6+ hours of sunshine and 50% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
December score
10.0/10
Ranked #5 of 12 months
- Avg temp
- 21°C
- Rainfall
- 2 mm
- Humidity
- 50%
- Days with 6h+ sun
- 30
- Crowd Density
- Peak Tourist Rush
- Average Expenses
- $$$ · Peak Season Rates ($$$)
December in Santiago scores 10.0/10 for sightseeing and cultural travel - an above-average month (#5 of 12). Expect around 21°C, 2 mm of rain, and roughly 30 days with 6+ hours of sunshine this month.
Andean skyline views, wine valleys, and plaza life feel best October through March.
December ranks 5th of 12 for Santiago — one of the best windows
December averages 21°C (69°F) — pleasant for mornings and evenings on foot in the city, with a midday break when the sun is strongest.
Rain is a non-issue at 2 mm for the month, with about 30 days with 6+ hours of sunshine and 14.3 hours of daylight to work with.
A 10/10 puts this among the year's best months in Santiago (5th of 12); only January scores higher, at 10/10.
Pack light clothing, a hat and real sun protection.
Plan for peak pricing, with this is one of the busiest months here.
Frequently asked
- What is the weather like in Santiago in December?
- In December, Santiago averages 21°C, 2 mm of rain, and about 30 days with 6+ hours of sunshine. Its climate-comfort score is 10.0/10.
- Is December a good time to visit Santiago?
- December earns a 10.0/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Santiago in December?
- Expect about 2 mm of rain in December. Average humidity is 50% and there are about 30 days with 6+ hours of sunshine.
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