Montréal Temperature by Month

The average annual maximum temperature in Montréal, Midi-Pyrénées, France is 20°C (68°F), with daytime highs ranging from 12°C (54°F) in January to 30°C (86°F) in August. This page covers monthly averages, day-night differences, and how Montréal compares to cities worldwide.

Depending on the time of the year, temperatures range from warm to cold in Montréal. Nighttime lows follow the same pattern, ranging from 17°C (63°F) to 3°C (37°F).

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

The coldest point of the day usually falls between 4 AM and 6 AM, with temperatures peaking around 3 PM.

The chart below shows the average temperature throughout the year:

Montréal's average annual maximum temperature is 20°C (68°F). To put that in context, here's how it compares to a few well-known destinations:

Seville, Spain averages 23°C (73°F) a year, one of the warmer cities in Western Europe, with long hot summers.

On the cooler end, Oslo, Norway averages just 10°C (50°F) annually, with pleasant summers but long, cold winters.

San Francisco, USA averages 19°C (66°F) annually, but with little seasonal variation, summers are often cool and foggy, winters mild.

Melbourne, Australia averages 20°C (68°F) annually, known for unpredictable weather, with four seasons sometimes happening in one day.

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.

Seasonal temperature shifts influence more than just how warm it feels, they also drive changes in rainfall, cloud cover, and wind patterns throughout the year.

Warmer air holds more moisture, which tends to mean heavier or more frequent rain during the warmer months. When temperatures drop in winter, any precipitation that does fall is more likely to come as snow or sleet, though in Montréal this rarely lasts long on the ground.

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