Rouyn (QC) Temperature by Month

The average annual maximum temperature in Rouyn, Quebec, Canada is 9°C (48°F), with daytime highs ranging from -9°C (16°F) in January to 24°C (75°F) in July. This page covers monthly averages, day-night differences, and how Rouyn compares to cities worldwide.

With significant temperature fluctuations, Rouyn enjoys distinct seasons year-round. Nighttime lows range from 13°C (55°F) in July to -21°C (-6°F) in January.

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

Temperatures tend to bottom out between 4 AM and 6 AM, then climb to their daily peak around 3 PM.

The chart below shows the average temperature throughout the year:

Rouyn's average annual maximum temperature is 9°C (48°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.

Chicago, USA averages 15°C (59°F) annually, known for extreme seasonal swings, from bitterly cold winters to warm summers.

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

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