Mercedes Temperature by Month

Mercedes in Corrientes Province, Argentina sees significant seasonal temperature differences, with daytime highs between 20°C (68°F) in June and 32°C (90°F) in January, averaging 26°C (79°F) annually. Explore the full monthly breakdown below.

With significant temperature fluctuations, Mercedes enjoys distinct seasons year-round. Nighttime lows range from 20°C (68°F) in January to 9°C (48°F) in June.

The chart below illustrates the average maximum day and minimum night temperatures in Mercedes 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 272 hours of sunshine.

The chart below shows the average temperature throughout the year:

Mercedes's average annual maximum temperature is 26°C (79°F). To put that in context, here's how it compares to a few well-known destinations:

Barcelona, Spain has an annual average of around 21°C (70°F), with warm summers and mild, fairly short winters.

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

Boston, USA averages 16°C (61°F) annually, with four distinct seasons and cold winters that rival northern Europe.

Perth, Australia averages 25°C (77°F) annually, with a classic Mediterranean climate, hot dry summers and mild wet winters.

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 Mercedes, June is the coolest month, with average highs of 20°C (68°F) and humidity around 81%, considered very high. In January, the warmest month, temperatures average 32°C (90°F) with 66% humidity, conditions that feel high. 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 Mercedes's weather, including monthly rainfall, sunshine hours, and humidity, visit our Mercedes climate page.