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Sierra de la Ventana Weather in December
In Sierra de la Ventana, December brings high daytime temperatures around 28°C (82°F), with nights cooling to 13°C (55°F). Expect quite a bit of rainfall this month.
Rainfall in Sierra de la Ventana in December
You can typically expect 9 days of rain this month, averaging around 77 mm (3 in). Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.
Temperature in Sierra de la Ventana in December
Sierra de la Ventana has excellent weather in December, with days reaching 28°C (82°F) and nights cooling to 13°C (55°F). During December, the summer season is in full swing. The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. At 13°C (55°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.
Sunshine in Sierra de la Ventana in December
The city usually sees around 268 hours of sunlight, indicating many sunny days , a great month for sightseeing.If you're a fan of comfortable temperatures and drier conditions, December is a great time to visit.
Sierra de la Ventana Temperature in December
Min Temperature
13°C (55°F)
Max Temperature
28°C (82°F)
Chance of Rain
30%
Precipitation
77 mm (3 in)
Rainy days
9 days
Humidity
53% *
Sunshine
268 hours *
Percentage Sunshine
58% *
* Data from: Bahía Blanca, Argentina (74 KM, 46 Miles).
Sierra de la Ventana Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Sierra de la Ventana - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Sierra de la Ventana typically rise from around 27°C (81°F) at the start of December to approximately 30°C (86°F) by the end. Nights are pleasant, with lows typically ranging from 12°C (54°F) to 17°C (63°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 Sierra de la Ventana in December
Browse day-by-day weather records for Sierra de la Ventana spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Sierra de la Ventana historical weather extremes in December
According to our 49 years of weather records for Sierra de la Ventana, the following extremes were recorded between 1976 and 2025.
- On December 16, 2013, temperatures climbed to 40°C (104°F), marking the warmest December day on record.
- On December 15, 1984, Sierra de la Ventana saw its coldest December day with temperatures maxing out at 15°C (59°F).
- Sierra de la Ventana registered its coldest December night on December 2, 2018, with temperatures dropping to 3°C (37°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 Sierra de la Ventana in December
Warm temperatures in December make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Rain gear is recommended, you can expect wet weather on multiple days. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.
What To Do in Sierra de la Ventana in December
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming9/10 -
Cycling7/10 -
Walking7/10 -
Camping8/10 -
Outdoor sports7/10
Sierra de la Ventana 3-Day Forecast
More climate data for Sierra de la Ventana
Temperature Rainfall Sunshine Humidity
See the full Sierra de la Ventana 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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