Dois Irmãos Temperature by Month

Dois Irmãos in Rio Grande do Sul, Brazil sees moderate seasonal temperature shifts, with daytime highs between 20°C (68°F) in July and 30°C (86°F) in January, averaging 25°C (77°F) annually. Explore the full monthly breakdown below.

The weather in Dois Irmãos changes moderately throughout the year, offering enough variation to appreciate each season. Nights are cooler, with lows ranging from 19°C (66°F) to 9°C (48°F).

The chart below illustrates the average maximum day and minimum night temperatures in Dois Irmãos 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 228 hours of sunshine.

The chart below shows the average temperature throughout the year:

Dois Irmãos's average annual maximum temperature is 25°C (77°F). To put that in context, here's how it compares to a few well-known destinations:

Lisbon, Portugal averages 21°C (70°F) annually, warm summers, mild winters, and rain mainly in the cooler months.

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

Shanghai, China averages 21°C (70°F) a year, with warm summers, mild winters, and a noticeable spring and autumn.

Adelaide, Australia averages 21°C (70°F) a year, with warm summers, mild winters, and relatively low rainfall year-round.

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 Dois Irmãos, July 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 30°C (86°F) with 71% 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.

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 Dois Irmãos's weather, including monthly rainfall, sunshine hours, and humidity, visit our Dois Irmãos climate page.