Trelew Temperature by Month

Trelew in Chubut, Argentina sees significant seasonal temperature differences, with daytime highs between 13°C (55°F) in July and 29°C (84°F) in January, averaging 21°C (70°F) annually. Explore the full monthly breakdown below.

Visitors to Trelew will encounter a climate influenced by big temperature differences across the year. Nighttime temperatures range from 16°C (61°F) in January to 2°C (36°F) in July.

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

Daily lows are most common between 4 AM and 6 AM. By 3 PM temperatures reach their daily high, driven by peak solar heating. January, the warmest month of the year, receives 311 hours of sunshine.

The chart below shows the average temperature throughout the year:

Trelew's average annual maximum temperature is 21°C (70°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.

Toronto, Canada averages 13°C (55°F) annually, with cold snowy winters balanced by genuinely warm summers.

Seoul, South Korea averages 18°C (64°F) a year, with four clear seasons, cold winters, and hot humid summers.

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 Trelew, July is the coolest month, with average highs of 13°C (55°F) and humidity around 66%, considered high. In January, the warmest month, temperatures average 29°C (84°F) with 40% 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 Trelew's weather, including monthly rainfall, sunshine hours, and humidity, visit our Trelew climate page.