Mendoza weather in January
Temperature, rain and sunshine in January: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in January
Fair
Best time to visit: March – November
What is the weather like in Mendoza in January?
In January, Mendoza is hot: daytime highs average 29 °C, and nights cool down to about 18 °C. With around 10 hours of sunshine a day, there is plenty of sun. Rain is frequent, with about 9 rainy days and 55 mm in total. On about 15 days the thermometer climbs to 30 °C or more. All in all, January is a so-so month for a holiday in Mendoza.
January compared
How the weather changes from December to February. Tap a month to open it.
| DecemberDec | JanuaryJan | FebruaryFeb | |
|---|---|---|---|
| Score | 69 | 58 | 71 |
| Day | 28° | 29° | 28° |
| Night | 17° | 18° | 17° |
| Sun | 11 h | 10 h | 9 h |
| Rain days | 8 | 9 | 9 |
More details for January
- Daylight
- 14 h 5 min06:41 – 20:47
- UV index
- 11 · extremeclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 15 km/haverage daily peakAll months
- Cloud cover
- 34 %on averageAll months
- Hot days
- 15 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 %37 %
- Sunshineweight 20 %100 %
- Few rainy daysweight 30 %64 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Mountain air”.
What to pack in January
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Water bottle – drink plenty
- Rain jacket or umbrella
Mendoza in January: quick answers
Is Mendoza hot in January?
Yes. In January, Mendoza is hot: daytime highs average 29 °C and nights stay around 18 °C. On about 15 days the thermometer climbs to 30 °C or more.
Does it rain much in Mendoza in January?
Rain is frequent, with about 9 rainy days and 55 mm in total.
Mendoza month by month
The whole year in MendozaAll destinations: ArgentinaWhere to go in January
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