Longueuil weather in September (Quebec, Canada)

Looking to travel to Longueuil in September? Wondering if it's the right time to visit? Browse this page for a comprehensive overview of the weather conditions for that month.

In September, Longueuil 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.

Longueuil in September usually receives high rainfall, averaging around 103 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 city usually sees around 183 hours of sunlight, indicating a moderately sunny period.

So this is a great month to visit if you prefer dry days with pleasant temperatures. May, June, July, August and September typically offer the most optimal weather. In contrast, January, February, March, April, November and December tend to have less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized Longueuil climate page with graphs.

 

Longueuil, monthly averages in September

Min Temperature 11°C  

Max Temperature 22°C  

Water Temperature 20°C *  

Chance of Rain 38%  

Precipitation 103 mm  

Rainy days 11 days  

Humidity 60% *  

Windspeed 18 km/h *  

Sunshine 183 hours *  

Percentage Sunshine 49% *  

* Data from: Montréal, Canada (4 KM, 2 Miles).

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.

Weather conditions Weather

Temperatures

Precipitation

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Legend perfect weather pleasant tolerable unpleasant poor

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

So, what should you wear in this month?

For visitors traveling to Longueuil, 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.

Swimming

6/10

Cycling

9/10

Walking

9/10

Camping

6/10

Outdoor sports

9/10

Interested in more climate information?

This site provides you with all the information you need about the climate in Longueuil.

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.