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Best time to visit · Argentina
For the most comfortable weather in Mendoza, aim for April – June and August – October. April tops our comfort score at 98/100, with highs around 76°F (24°C) and 1.1 in (28 mm) of rain. March, July and November are good shoulder-season months. The toughest month is January, mainly because of heat.
Highs run from 60°F to 93°F across the year, and the yearly total is about 11.5 in (292 mm) of rain.
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high | 93°F34°C | 90°F32°C | 85°F29°C | 76°F24°C | 67°F19°C | 61°F16°C | 60°F16°C | 66°F19°C | 73°F23°C | 80°F27°C | 87°F31°C | 91°F33°C |
| Avg low | 67°F19°C | 64°F18°C | 59°F15°C | 51°F11°C | 44°F6°C | 37°F3°C | 36°F2°C | 39°F4°C | 44°F7°C | 52°F11°C | 58°F15°C | 64°F18°C |
| Rain | 1.9 in47 mm | 1.9 in49 mm | 1.5 in37 mm | 1.1 in28 mm | 0.7 in19 mm | 0.3 in8 mm | 0.4 in10 mm | 0.4 in9 mm | 0.3 in8 mm | 0.6 in15 mm | 1.3 in32 mm | 1.2 in30 mm |
| Humidity | 41% | 46% | 49% | 53% | 58% | 54% | 52% | 45% | 42% | 39% | 36% | 37% |
| Cloud | 38% | 39% | 37% | 37% | 48% | 41% | 42% | 35% | 35% | 36% | 31% | 30% |
| Comfort | 69 | 76 | 88 | 98 | 94 | 91 | 89 | 98 | 98 | 98 | 85 | 76 |
Source: NASA POWER (public domain), 2001–2025 monthly averages on a ~50 km satellite and reanalysis grid, so coasts and valleys can differ from what's shown. Temperatures were adjusted from the grid cell's ~918 m (3,012 ft) to Mendoza's ~769 m (2,523 ft) elevation using the standard lapse rate of 6.5°C per 1,000 m. Precipitation includes snow as melted water; daylight is calculated from latitude. Check a forecast before you go.
Mendoza is in the Southern Hemisphere, so the seasons run opposite to North America and Europe.
The warmest stretch of the year, with highs of 90–93°F (32–34°C). It's the wettest season, with about 5.0 in (126 mm) of rain, 43% of the year's total. Lows bottom out around 64°F (18°C). It holds the toughest stretch on our comfort score (January), averaging 74/100.
Temperatures slide from 85°F highs in March to 67°F by May. About 3.3 in (84 mm) of rain falls across these months, 29% of the year's total. Lows bottom out around 44°F (6°C). Comfort peaks here: April & May rank with the year's best, and the season averages 93/100.
The coldest season, with highs of 60–66°F (16–19°C) and lows down to 36°F (2°C). It's the driest season, with only about 1.1 in (27 mm) of rain, 9% of the year's total. June and August are among the best-scoring months (season average 93/100).
Temperatures climb through the season, from 73°F highs in September to 87°F by November. About 2.2 in (55 mm) of rain falls across these months, 19% of the year's total. Lows bottom out around 44°F (7°C). Comfort peaks here: September & October rank with the year's best, and the season averages 94/100.
By comfort score: 11 Great and 1 Good. Great months: February – December. Tap a month for its own guide.
For the most comfortable weather in Mendoza, aim for April – June and August – October. April tops our comfort score at 98/100, with highs around 76°F (24°C) and 1.1 in (28 mm) of rain. March, July and November are good shoulder-season months. The toughest month is January, mainly because of heat.
February is the wettest month, averaging about 1.9 in (49 mm) of rain. June is the driest, with about 0.3 in (8 mm). The yearly total is around 11.5 in (292 mm).
July is the coldest, with average lows of 36°F (2°C) and highs of 60°F (16°C). The warmest is January, with average highs of 93°F (34°C).
Not very: summer (December – February) humidity averages 41%, and highs peak around 93°F (34°C), so heat matters more than mugginess.
Not on average: even in July, the coldest month, lows average 36°F (2°C). Individual cold snaps can still dip lower.
Poll the group on April – June and August – October dates, then plan the days, packing and costs together.
