Climate guide for Mendoza, Argentina

Mendoza in December

Weather, crowds & best time to visit

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December · Argentina

Best time to visit Mendoza in December Weather, crowds & prices

Weather in Mendoza in December

Average temperature 25°C, 21 mm of rain, about 31 days with 6+ hours of sunshine and 33% humidity — based on the five most recent complete years of ERA5 data (2021–2025).

December score

8.4/10

Ranked #8 of 12 months

Full year for Mendoza
Avg temp
25°C
Rainfall
21 mm
Humidity
33%
Days with 6h+ sun
31
Crowd Density
Moderate Crowds
Average Expenses
$$ · Moderate Cost ($$)

December in Mendoza scores 8.4/10 for sightseeing and cultural travel - ranked #8 of 12. Expect around 25°C, 21 mm of rain, and roughly 31 days with 6+ hours of sunshine this month.

Mendoza turns Andean meltwater and irrigation channels into a grid of vineyards east of Aconcagua.

December in Mendoza: strong conditions, 8th of 12

December averages 25°C (77°F) — pleasant for mornings and evenings on foot in the city, with a midday break when the sun is strongest.

Expect 21 mm of rain — occasional showers rather than washed-out days — alongside about 31 days with 6+ hours of sunshine and 14.2 daylight hours.

It scores 8.4/10 here, 8th of 12 months, against 9.8/10 in the destination's best month.

Pack light clothing, a hat and real sun protection.

Plan for mid-season pricing, with crowds are moderate.

View all 12 months

Ranked by pure climate comfort

Score scale: 0.0 → 10.0Quiet / UncrowdedModerate CrowdsPeak Tourist Rush

Frequently asked

What is the weather like in Mendoza in December?
In December, Mendoza averages 25°C, 21 mm of rain, and about 31 days with 6+ hours of sunshine. Its climate-comfort score is 8.4/10.
Is December a good time to visit Mendoza?
December earns a 8.4/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
How much does it rain in Mendoza in December?
Expect about 21 mm of rain in December. Average humidity is 33% and there are about 31 days with 6+ hours of sunshine.

Curated in Mendoza

Tickets & experiences

Things to do in Mendoza

Mendoza, Argentina. Live activities and tours from GetYourGuide, matched to this destination.