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Mille-Isles Weather in September
September in Mille-Isles brings pleasant temperatures around 21°C (70°F) during the day, dropping to 9°C (48°F) at night, with quite a bit of rainfall expected, averaging around 111 mm (4.4 in) for the month.
Rainfall in Mille-Isles in September
Climate statistics over the past 30 years suggest around 13 days of rain, with 111 mm (4.4 in) average for the month. When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.
Temperature in Mille-Isles in September
September in Mille-Isles brings pleasant temperatures, with highs of 21°C (70°F) and nights around 9°C (48°F). Temperatures can feel cooler in the morning and evening, so layering is often the best approach. With overnight lows of 9°C (48°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.
Sunshine in Mille-Isles in September
With about 183 hours of sunshine, the area enjoys a nice balance of sun and overcast, creating a pleasant environment.If your ideal day consists of dry skies and pleasant temperatures, June, July, August and September typically offer the best circumstances for Mille-Isles.
Mille-Isles Temperature in September
Min Temperature
9°C (48°F)
Max Temperature
21°C (70°F)
Chance of Rain
42%
Precipitation
111 mm (4.4 in)
Rainy days
13 days
Humidity
60% *
Sunshine
183 hours *
Percentage Sunshine
49% *
* Data from: Montréal, Canada (61 KM, 37 Miles).
Mille-Isles Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Mille-Isles - 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 Mille-Isles in September
For Mille-Isles 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. Bring sunglasses since you'll have some sunny periods throughout the month
What To Do in Mille-Isles in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming6/10 -
Cycling9/10 -
Walking9/10 -
Camping3/10 -
Outdoor sports9/10
Mille-Isles 3-Day Forecast
More climate data for Mille-Isles
Temperature Rainfall Sunshine Humidity
See the full Mille-Isles 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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