Saint-Marc-sur-Richelieu Weather in September

In Saint-Marc-sur-Richelieu, September brings high daytime temperatures around 22°C (72°F), with nights cooling to 10°C (50°F). Expect quite a bit of rainfall this month.

Rainfall in Saint-Marc-sur-Richelieu in September

This month experiences about 11 days of rain according to historical data, averaging 101 mm (4 in). When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.

Temperature in Saint-Marc-sur-Richelieu in September

Temperatures in Saint-Marc-sur-Richelieu in September top out at 22°C (72°F) and drop to 10°C (50°F) overnight. This kind of day-to-night contrast is typical for this time of year. With overnight lows of 10°C (50°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.

Sunshine in Saint-Marc-sur-Richelieu in September

You can expect a moderate amount of sunlight, with approximately 183 hours. This means a pleasant mix of sun and overcast.

If your ideal day consists of dry skies and pleasant temperatures, May, June, July, August and September typically offer the best circumstances for Saint-Marc-sur-Richelieu.

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 Saint-Marc-sur-Richelieu's climate page.

Saint-Marc-sur-Richelieu Temperature in September

Min Temperature 10°C (50°F)  

Max Temperature 22°C (72°F)  

Chance of Rain 37%  

Precipitation 101 mm (4 in)  

Rainy days 11 days  

Humidity 60% *  

Sunshine 183 hours *  

Percentage Sunshine 49% *  

* Data from: Montréal, Canada (34 KM, 21 Miles).

What to Wear in Saint-Marc-sur-Richelieu in September

Pleasant temperatures in September mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Prepare for significant rainfall with proper waterproof clothing and shoes. Bring sunglasses since you'll have some sunny periods throughout the month

What To Do in Saint-Marc-sur-Richelieu in September

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

Swimming

6/10

Cycling

9/10

Walking

9/10

Camping

6/10

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 Saint-Marc-sur-Richelieu's climate page.

More climate data for Saint-Marc-sur-Richelieu

Temperature Rainfall Sunshine Humidity

See the full Saint-Marc-sur-Richelieu climate overview or explore weather in Canada.