December · Chile
Best time to visit Calama in December Weather, crowds & prices
Weather in Calama in December
Average temperature 18°C, 1 mm of rain, about 31 days with 6+ hours of sunshine and 25% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
December score
9.5/10
Ranked #4 of 12 months
- Avg temp
- 18°C
- Rainfall
- 1 mm
- Humidity
- 25%
- Days with 6h+ sun
- 31
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$$ · Peak Season Rates ($$$)
December in Calama scores 9.5/10 for sightseeing and cultural travel - an above-average month (#4 of 12). Expect around 18°C, 1 mm of rain, and roughly 31 days with 6+ hours of sunshine this month.
Calama is the dry Atacama logistics town-airport gateway to San Pedro and Chuquicamata’s copper hinterland. Best window: cooler months from late autumn through early spring.
December is one of the strongest months in Calama (4th)
Temperatures hover around 18°C (64°F) — the kind of month where neither heat nor cold forces the schedule.
At just 1 mm for the month, rain will not shape your plans; you get about 31 days with 6+ hours of sunshine and 13.4 hours of daylight.
On our climate-comfort scale this is one of the strongest months of the year for Calama at 9.5/10 (4th of 12), just behind January at 9.9/10.
Pack layers you can shed by midday plus one warm layer for the evening.
Budget for peak pricing, and crowds are moderate.
Frequently asked
- What is the weather like in Calama in December?
- In December, Calama averages 18°C, 1 mm of rain, and about 31 days with 6+ hours of sunshine. Its climate-comfort score is 9.5/10.
- Is December a good time to visit Calama?
- December earns a 9.5/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Calama in December?
- Expect about 1 mm of rain in December. Average humidity is 25% and there are about 31 days with 6+ hours of sunshine.
Curated in Calama
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Calama, Chile. Live activities and tours from GetYourGuide, matched to this destination.