Viedma Temperature by Month

Viedma in Río Negro, Argentina sees significant seasonal temperature differences, with daytime highs between 13°C (55°F) in July and 25°C (77°F) in January, averaging 19°C (66°F) annually. Explore the full monthly breakdown below.

The climate in Viedma is dynamic, ranging widely from moderate in winter to comfortable in summer. Nights are significantly colder, with lows dropping from 17°C (63°F) in January to 6°C (43°F) in July.

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

Low temperatures are most often recorded between 4 AM and 6 AM, while highs typically occur around 3 PM. January, the city's warmest month, sees 290 hours of sunshine.

The chart below shows the average temperature throughout the year:

Viedma's average annual maximum temperature is 19°C (66°F). To put that in context, here's how it compares to a few well-known destinations:

Rome, Italy averages 20°C (68°F) annually, with reliably warm summers and comfortable winters.

Zermatt, Switzerland averages just 4°C (39°F) annually due to its altitude, with very cold winters and cool summers even at its warmest.

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

Brisbane, Australia averages 26°C (79°F) a year, with warm winters and hot, humid summers.

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 the cooler months, when temperatures drop below 10°C, high humidity makes the cold feel more cutting than it would in dry conditions.

In Viedma, July is the coolest month, with average highs of 13°C (55°F) and humidity around 72%, considered high. In January, the warmest month, temperatures average 25°C (77°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.

For cities and regions with significant elevation, altitude is one of the biggest factors shaping local temperatures. As a rule of thumb, temperatures fall by around 6°C for every 1,000 metres gained, so a city at 2,000 metres will typically be around 12°C cooler than a city at sea level in the same region. Higher ground also tends to see more dramatic day-to-night temperature swings, since thinner air loses heat faster after sunset.

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