Mendoza Weather in December
With daytime temperatures of 30°C (86°F) and nighttime lows of 16°C (61°F), December in Mendoza brings high temperatures during the day. Do keep in mind that quite a bit of rainfall is typical. Around 70 mm (2.8 in) falls on average.
Rainfall in Mendoza in December
This month experiences about 5 days of rain according to historical data, averaging 70 mm (2.8 in). The rain this month typically falls in concentrated bursts rather than all-day showers. Expect a few heavier spells rather than constant grey skies.
Temperature in Mendoza in December
Daytime highs in Mendoza in December reach 30°C (86°F), with nights around 16°C (61°F). Overall, the month follows a fairly predictable daily temperature pattern. Nights drop to around 16°C (61°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.
Sunshine in Mendoza in December
The days are predominantly sunny, with an estimated total of around 302 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.
Wind Speed in Mendoza in December
Average wind conditions reach 1 m/s (2 knots) in December. This creates generally peaceful weather with subtle air movement. Remember this is an average: some days are windless while others have noticeable or very gentle breezes.December in Mendoza has its charm. However, if you're seeking pleasant, dry and sunny weather, our weather planner can help you explore other destinations in the world.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Argentina, check out our Mendoza's climate page.
Mendoza Temperature in December
Min Temperature
16°C (61°F)
Max Temperature
30°C (86°F)
Chance of Rain
16%
Precipitation
70 mm (2.8 in)
Rainy days
5 days
Humidity
47%
Windspeed
1 m/s (2 knots)
Sunshine
302 hours
Percentage Sunshine
64%
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Mendoza typically stay consistent throughout December, with daily highs averaging around 30°C (86°F). Nights are pleasant, with lows typically ranging from 17°C (63°F) to 21°C (70°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 for Mendoza in December
Browse day-by-day weather records for Mendoza spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Mendoza historical weather extremes in December
The extremes listed below come from historical weather data collected in Mendoza from 1976 through 2025.
- The hottest December day on record in Mendoza reached 41°C (106°F) (December 30, 1994).
- The lowest daytime temperature in December was 16°C (61°F), recorded on December 8, 2002.
- Nighttime temperatures dropped to 5°C (41°F) on December 20, 1980, marking the coldest December night on record.
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
What to Wear in Mendoza 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. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Mendoza in December
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Argentina, check out our Mendoza's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed
See the full Mendoza climate overview or explore weather in Argentina.
