Mendoza weather in December
Temperature, rain and sunshine in December: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in December
Good
Best time to visit: March – November
What is the weather like in Mendoza in December?
In December, Mendoza is hot: daytime highs average 28 °C, and nights cool down to about 17 °C. With around 11 hours of sunshine a day, there is plenty of sun. Rain falls on about 8 days, adding up to 55 mm. On about 11 days the thermometer climbs to 30 °C or more. All in all, December is a good month for a holiday in Mendoza.
December compared
How the weather changes from November to January. Tap a month to open it.
| NovemberNov | DecemberDec | JanuaryJan | |
|---|---|---|---|
| Score | 85 | 69 | 58 |
| Day | 26° | 28° | 29° |
| Night | 14° | 17° | 18° |
| Sun | 10 h | 11 h | 10 h |
| Rain days | 8 | 8 | 9 |
More details for December
- Daylight
- 14 h 18 min06:22 – 20:39
- UV index
- 12 · extremeclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 16 km/haverage daily peakAll months
- Cloud cover
- 29 %on averageAll months
- Hot days
- 11 days30 °C or moreAll months
- Snow days
- 0 days1 cm or more of fresh snow
- Time zone
- UTC−3America/Argentina/Mendoza
How the score comes together
- Temperatureweight 50 %54 %
- Sunshineweight 20 %100 %
- Few rainy daysweight 30 %72 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Mountain air”.
What to pack in December
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Water bottle – drink plenty
Mendoza in December: quick answers
Is Mendoza hot in December?
Yes. In December, Mendoza is hot: daytime highs average 28 °C and nights stay around 17 °C. On about 11 days the thermometer climbs to 30 °C or more.
Does it rain much in Mendoza in December?
Rain falls on about 8 days, adding up to 55 mm.
Mendoza month by month
The whole year in MendozaAll destinations: ArgentinaWhere to go in December
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences