December · Chile
Best time to visit San Pedro de Atacama in December Weather, crowds & prices
Weather in San Pedro de Atacama in December
Average temperature 18°C, 1 mm of rain, about 31 days with 6+ hours of sunshine and 19% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
December score
9.3/10
Ranked #5 of 12 months
- Avg temp
- 18°C
- Rainfall
- 1 mm
- Humidity
- 19%
- Days with 6h+ sun
- 31
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$$ · Peak Season Rates ($$$)
December in San Pedro de Atacama scores 9.3/10 for nature and wildlife travel - an above-average month (#5 of 12). Expect around 18°C, 1 mm of rain, and roughly 31 days with 6+ hours of sunshine this month.
San Pedro de Atacama is the base for the Atacama's geysers, salt flats and stargazing skies.
December in San Pedro de Atacama — one of the year's strongest windows (5th)
December averages 18°C (65°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
Rain is a non-issue at 1 mm for the month, with about 31 days with 6+ hours of sunshine and 13.4 hours of daylight to work with.
A 9.3/10 puts this among the year's best months in San Pedro de Atacama (5th of 12); only February scores higher, at 9.7/10.
Pack layers you can shed by midday plus one warm layer for the evening, footwear you can get muddy.
Figure on peak pricing, with crowds are moderate.
Frequently asked
- What is the weather like in San Pedro de Atacama in December?
- In December, San Pedro de Atacama averages 18°C, 1 mm of rain, and about 31 days with 6+ hours of sunshine. Its climate-comfort score is 9.3/10.
- Is December a good time to visit San Pedro de Atacama?
- December earns a 9.3/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in San Pedro de Atacama in December?
- Expect about 1 mm of rain in December. Average humidity is 19% and there are about 31 days with 6+ hours of sunshine.
Curated in San Pedro de Atacama
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Things to do in San Pedro de Atacama
San Pedro de Atacama, Chile. Live activities and tours from GetYourGuide, matched to this destination.