Montréal
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Montréal Weather in September

In Montréal, September brings high daytime temperatures around 26°C (79°F), with nights cooling to 13°C (55°F). Some rainfall is to be expected.

Rainfall in Montréal in September

Historically, approximately 10 days this month are expected to have rain, averaging 56 mm (2.2 in). The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.

Temperature in Montréal in September

Weather in Montréal is at its excellent in September. Highs reach 26°C (79°F), while nights settle around 13°C (55°F). Overall, the month follows a fairly predictable daily temperature pattern. With overnight lows of 13°C (55°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. May, June, July, September and October typically offer the best weather for Montréal.

Montréal Temperature in September

Min Temperature
13°C (55°F)
Max Temperature
26°C (79°F)
Chance of Rain
35%
Precipitation
56 mm (2.2 in)
Rainy days
10 days

Montréal Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Montréal - and find the best time to visit.

Best Places in France in September

Find out more about the weather in France and which places have the best travel conditions in this month. See all of France in September →

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in Montréal in September

Warm but pleasant conditions in Montréal in September. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Wet weather is likely, so pack waterproof gear for multiple rainy days.

What To Do in Montréal in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

  • Cycling
    8/10
  • Walking
    8/10
  • Camping
    8/10
  • Outdoor sports
    8/10

Montréal 3-Day Forecast

More climate data for Montréal

Popular in September

Where to go in September - average daytime high across popular destinations.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.