Montréal weather in September (Quebec, Canada)
Planning a trip to Montréal in September? Here's what the weather might have in store during this month.
In September, Montréal generally has high temperatures and high rainfall. Throughout the daytime, temperatures often hover around 22°C. However, as the sun sets and evening approaches, there's a noticeable cool-down, with temperatures gently dropping to a more temperate 11°C.
Montréal in September usually receives high rainfall, averaging around 102 mm for the month. When we look at the climate data from the last 30 years, we can expect around 11 days of rain.
The area enjoys a balanced 183 hours of sunlight. Ensuring it's neither too overcast nor too sunny.
If you're inclined towards comfortable temperatures and drier conditions, September is a prime time to visit Montréal. May, June, July, August and September typically offer the best circumstances. While January, February, March, April, November and December tend to showcase less optimal conditions.
For an in-depth look at the yearly conditions, visit our specialized Montréal climate page with graphs.
Montréal, monthly averages in September
Min Temperature
11°C
Max Temperature
22°C
Water Temperature
20°C
Chance of Rain
38%
Precipitation
102 mm
Rainy days
11 days
Humidity
60%
Windspeed
18 km/h
Sunshine
183 hours
Percentage Sunshine
49%
Where to go in Canada in September
Find out more about the weather in Canada in September and which places have the best weather conditions in this month.
perfect weather
pleasant
tolerable
unpleasant
poor
So, what should you wear in Montréal in September?
For visitors traveling to Montréal, we recommend wearing layers. So maybe a skirt, t-shirt, shorts for during the day and jeans and a warm jacket for some days and evenings. Bring a rain jacket in case it rains during your stay. Plan on layering your clothes. With a water temperature of around 20°C this is a great month to swim so bring your swimwear.What To Do
We rated the following activities from 1 (least suitable) to 10 (best) to do in September.
Interested in more climate information?
Weather and Climate provides you with all the information you need about the climate in Montréal.
Our site offers climate and forecast data for every country in the world. Are you going to Canada? On this website you can find historical weather averages for many cities in Canada. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.
