Mendoza Temperature by Month

The average annual maximum temperature in Mendoza, Mendoza Province, Argentina is 23°C (73°F), with daytime highs ranging from 14°C (57°F) in July to 31°C (88°F) in January. This page covers monthly averages, day-night differences, and how Mendoza compares to cities worldwide.

The weather in Mendoza experiences significant differences between warm and cold seasons, with big shifts in temperature. At night, minimum temperatures range from 18°C (64°F) in January to 2°C (36°F) in July.

The chart below illustrates the average maximum day and minimum night temperatures in Mendoza by month:

From around 4 AM to 6 AM temperatures are at their lowest; by 3 PM they've climbed to their daily peak. January, the warmest month, averages 311 hours of sunshine.

The chart below shows the average temperature throughout the year:

Mendoza's average annual maximum temperature is 23°C (73°F). To put that in context, here's how it compares to a few well-known destinations:

Athens, Greece sits at 23°C (73°F) on average, with hot dry summers and mild winters characteristic of the Mediterranean.

Interlaken, Switzerland averages 8°C (46°F) a year, with cold winters and cool summers thanks to its Alpine setting.

Buenos Aires, Argentina averages 23°C (73°F) a year, with hot summers and mild winters, and seasons reversed compared to Europe.

Melbourne, Australia averages 20°C (68°F) annually, known for unpredictable weather, with four seasons sometimes happening in one day.

Temperature alone doesn't tell the whole story, humidity plays a big role in how warm or cold it actually feels. High humidity in summer makes the heat feel more intense, particularly once temperatures climb above 25°C. In winter, the same humidity can make cold air feel sharper than the thermometer suggests.

In Mendoza, July is the coolest month, with average highs of 14°C (57°F) and humidity around 64%, considered high. In January, the warmest month, temperatures average 31°C (88°F) with 50% humidity, conditions that feel moderate. For a full picture, see our humidity page.

Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.

The readings come from a range of sources, land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.

Whether a city sits on the coast or deep inland makes a significant difference to its climate. Coastal areas tend to have more stable temperatures year-round, large bodies of water absorb heat slowly in summer and release it gradually in winter, keeping extremes in check. Cities far from the sea don't benefit from that buffer, which is why continental climates tend to have hotter summers and colder winters than their coastal counterparts at the same latitude.

For more on Mendoza's weather, including monthly rainfall, sunshine hours, and humidity, visit our Mendoza climate page.