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San Carlos de Bariloche Weather in December
December in San Carlos de Bariloche sees daytime temperatures around 18°C (64°F) and lows of 5°C (41°F) at night. Pack a rain jacket because some rainfall is likely.
Rainfall in San Carlos de Bariloche in December
This month experiences about 5 days of rain according to historical data, averaging 57 mm (2.2 in). When rain does fall this month, it tends to come down hard. The low number of rain days makes each shower more significant.
Temperature in San Carlos de Bariloche in December
In December, San Carlos de Bariloche gets pleasant temperatures, with highs of 18°C (64°F). Nights cool to around 5°C (41°F). During December, you'll experience the summer season. A light jacket or extra layer can be useful, especially outside the warmest hours of the day. Nights drop to 5°C (41°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.
Sunshine in San Carlos de Bariloche in December
There are approximately 298 hours of sunshine this month, resulting in mostly clear days.If your ideal day consists of dry skies and pleasant temperatures, January and February typically offer the best circumstances for San Carlos de Bariloche.
San Carlos de Bariloche Temperature in December
Min Temperature
5°C (41°F)
Max Temperature
18°C (64°F)
Chance of Rain
17%
Precipitation
57 mm (2.2 in)
Rainy days
5 days
Humidity
55%
Sunshine
298 hours
Percentage Sunshine
72%
San Carlos de Bariloche Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in San Carlos de Bariloche - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in San Carlos de Bariloche typically rise from around 18°C (64°F) at the start of December to approximately 21°C (70°F) by the end. Nights are cold, with lows typically ranging from 6°C (43°F) to 9°C (48°F).
Average temperatures in December
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in December
Historical weather records for San Carlos de Bariloche in December
Browse day-by-day weather records for San Carlos de Bariloche spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
San Carlos de Bariloche historical weather extremes in December
Our historical data for San Carlos de Bariloche spans 1992 to 2025, revealing these weather extremes.
- The hottest December day on record in San Carlos de Bariloche reached 33°C (91°F) (December 28, 2011).
- The lowest daytime temperature in December was 7°C (45°F), recorded on December 10, 2010.
- San Carlos de Bariloche registered its coldest December night on December 23, 2011, with temperatures dropping to -4°C (25°F).
Best Places in Argentina in December
Find out more about the weather in Argentina and which places have the best travel conditions in this month. See all of Argentina in December →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in San Carlos de Bariloche in December
Comfortable temperatures call for an easy wardrobe in December. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Wet weather is likely, so pack waterproof gear for multiple rainy days. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.
What To Do in San Carlos de Bariloche in December
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling10/10 -
Walking10/10 -
Camping4/10 -
Outdoor sports10/10
San Carlos de Bariloche 3-Day Forecast
More climate data for San Carlos de Bariloche
Temperature Rainfall Sunshine Humidity
See the full San Carlos de Bariloche climate overview or explore weather in Argentina.
Popular in December
Where to go in December - average daytime high across popular destinations.
Córdoba
30°C (86°F) Mendoza
30°C (86°F) Buenos Aires29°C (84°F) Villa Carlos Paz
27°C (81°F) Salta25°C (77°F) Mar del Plata24°C (75°F) San Martín de los Andes
18°C (64°F) San Carlos de Bariloche18°C (64°F) Bucket list
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