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Grand-Mère Weather in September
Grand-Mère in September averages 21°C (70°F) during the day and 9°C (48°F) at night. Keep in mind that quite a bit of rainfall is expected this month.
Rainfall in Grand-Mère in September
Analyzing past climate data, one can expect approximately 12 days of rain, averaging 107 mm (4.2 in). The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.
Temperature in Grand-Mère in September
September in Grand-Mère sees highs of 21°C (70°F) and lows of 9°C (48°F) overnight. A light jacket or extra layer can be useful, especially outside the warmest hours of the day. Nights fall to 9°C (48°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.So this is a great month to visit if you prefer dry days with pleasant temperatures.
Grand-Mère Temperature in September
Min Temperature
9°C (48°F)
Max Temperature
21°C (70°F)
Chance of Rain
41%
Precipitation
107 mm (4.2 in)
Rainy days
12 days
Grand-Mère Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Grand-Mère - and find the best time to visit.
Best Places in Canada in September
Find out more about the weather in Canada and which places have the best travel conditions in this month. See all of Canada 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 Grand-Mère in September
For Grand-Mère in September, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho.
What To Do in Grand-Mère in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling9/10 -
Walking9/10 -
Camping3/10 -
Outdoor sports9/10
Grand-Mère 3-Day Forecast
More climate data for Grand-Mère
See the full Grand-Mère climate overview or explore weather in Canada.
Popular in September
Where to go in September - average daytime high across popular destinations.
Toronto
22°C (72°F) Niagara Falls23°C (73°F) Montréal
22°C (72°F) Ottawa22°C (72°F) Quebec City
20°C (68°F) Vancouver19°C (66°F) Calgary19°C (66°F) Whistler15°C (59°F) Bucket list
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