December · Argentina
Best time to visit El Chaltén in December Weather, crowds & prices
Weather in El Chaltén in December
Average temperature 3°C, 95 mm of rain, about 31 days with 6+ hours of sunshine and 80% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
December score
6.9/10
Ranked #2 of 12 months
- Avg temp
- 3°C
- Rainfall
- 95 mm
- Humidity
- 80%
- Days with 6h+ sun
- 31
- Crowd Density
- Peak Tourist Rush
- Average Expenses
- $$$ · Peak Season Rates ($$$)
December in El Chaltén scores 6.9/10 for nature and wildlife travel - one of the top 12-month picks (#2). Expect around 3°C, 95 mm of rain, and roughly 31 days with 6+ hours of sunshine this month.
El Chaltén is Argentina's trekking capital, below the Fitz Roy and Cerro Torre peaks.
December in El Chaltén: mixed conditions, plan around the weather
At 3°C (37°F) this is proper winter weather in December: layer up and split the day between outdoor highlights and indoor stops.
Budget for roughly 95 mm of rain this month — a flexible day or two helps — with about 31 days with 6+ hours of sunshine and 16 hours of daylight to work around it.
That is 6.9/10 on the same scale — 2nd of 12 months, versus 7/10 for the best month here.
Pack insulated layers, a windproof shell, gloves and boots with grip, a packable rain layer, footwear you can get muddy.
Budget for peak pricing, and this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Frequently asked
- What is the weather like in El Chaltén in December?
- In December, El Chaltén averages 3°C, 95 mm of rain, and about 31 days with 6+ hours of sunshine. Its climate-comfort score is 6.9/10.
- Is December a good time to visit El Chaltén?
- December earns a 6.9/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in El Chaltén in December?
- Expect about 95 mm of rain in December. Average humidity is 80% and there are about 31 days with 6+ hours of sunshine.
Curated in El Chaltén
Tickets & experiences
Things to do in El Chaltén
El Chaltén, Argentina. Live activities and tours from GetYourGuide, matched to this destination.