Montréal Weather in September

Montréal in September sees high daytime temperatures of 23°C (73°F) and nighttime lows of 12°C (54°F). Rainfall is fairly high this month at around 141 mm (5.6 in), so pack a rain jacket to stay dry.

Rainfall in Montréal in September

The climate data from previous years indicates about 9 days of rain, averaging 141 mm (5.6 in) for the month. When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.

Temperature in Montréal in September

Montréal in September gets highs of 23°C (73°F) during the day and drops to 12°C (54°F) at night. This kind of day-to-night contrast is typical for this time of year. With lows of 12°C (54°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.

Sunshine in Montréal in September

The days are predominantly sunny, with an estimated total of around 222 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.

If you prefer dry days with pleasant temperatures, June, July and August typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.