Longueuil Weather in October

In Longueuil, October brings moderate daytime temperatures around 14°C (57°F), with nights cooling to 5°C (41°F). It is the wettest month of the year, so expect more rainfall than usual.

Rainfall in Longueuil in October

Since this is the rainiest month of the year, it's a good idea to carry an umbrella just in case. Looking at the last 30 years, the data shows about 13 days with rain, averaging 115 mm (4.5 in) for the month. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.

Temperature in Longueuil in October

If you're visiting Longueuil in October, expect highs of 14°C (57°F) and overnight lows around 5°C (41°F). Conditions are often most pleasant around the middle of the day. Nights fall to 5°C (41°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.

Sunshine in Longueuil in October

You can expect a moderate amount of sunlight, with approximately 140 hours. This means a pleasant mix of sun and overcast.

Wind Speed in Longueuil in October

Wind speeds average 6 m/s (12 knots) during October. At this speed, expect strong winds that make large branches move and create some resistance when walking. Since this is an average, some days have fresh winds while others have strong breezes that can make umbrellas tricky to control.

Average water temperature in October

The water temperature is 14°C (57°F) — chilly, but perfectly fine for a swim if you're not too sensitive to cold water. A short wetsuit can make longer sessions more comfortable.

For Longueuil itself, May, June, July, August and September generally stand out with 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.

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For a detailed overview over the year and the best time to visit Canada, check out our Longueuil's climate page.

Longueuil Temperature in October

Min Temperature 5°C (41°F)  

Max Temperature 14°C (57°F)  

Water Temperature 14°C (57°F) *  

Chance of Rain 42%  

Precipitation 115 mm (4.5 in)  

Rainy days 13 days  

Humidity 62% *  

Windspeed 6 m/s (12 knots) *  

Sunshine 140 hours *  

Percentage Sunshine 43% *  

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

What to Wear in Longueuil in October

The weather can swing between comfortable and chilly in October, so flexibility is key. Pack a variety of tops, at least one warm layer, and both shorts and long pants. This gives you options no matter what the day brings. Expect heavy rainfall, so bring good rain protection and waterproof bags. With water temperatures around 14°C (57°F), the water is quite cold for swimming. You can skip the swimwear unless you're particularly tough. Sunglasses could come in handy during the sunnier parts of your trip.

What To Do in Longueuil in October

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

Swimming

5/10

Cycling

5/10

Walking

5/10

Camping

3/10

Outdoor sports

9/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Canada, check out our Longueuil's climate page.

More climate data for Longueuil

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

See the full Longueuil climate overview or explore weather in Canada.