The 5 most beautiful lakes in Canada
Explore Canada's stunning lakes: Lake Louise, Lake Superior, Maligne Lake, Emerald Lake, and Lake Okanagan, each offering unique beauty and activities.
Alliston Weather in September
In Alliston, 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 Alliston in September
The climate data from previous years indicates about 11 days of rain, averaging 78 mm (3.1 in) for the month. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.
Temperature in Alliston in September
The temperature in Alliston in September is excellent. Daytime highs reach 22°C (72°F), with nights dropping to 10°C (50°F). Overall, the month follows a fairly predictable daily temperature pattern. At 10°C (50°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.
Sunshine in Alliston in September
Expect sunny days throughout the month, with an estimated 216 hours of sunshine. This makes it a pleasant time to visit Alliston.Our weather planner can help you find worldwide destinations with pleasant weather during this period. May, June, July, August and September typically offer the best weather for Alliston.
Alliston Temperature in September
Min Temperature
10°C (50°F)
Max Temperature
22°C (72°F)
Chance of Rain
36%
Precipitation
78 mm (3.1 in)
Rainy days
11 days
Humidity
59% *
Sunshine
216 hours *
Percentage Sunshine
58% *
* Data from: Mississauga, Canada (65 KM, 40 Miles).
Alliston Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Alliston - 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 Alliston 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. Rain gear is recommended, you can expect wet weather on multiple days. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.
What To Do in Alliston in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
-
Cycling9/10 -
Walking9/10 -
Barbeque8/10 -
Camping4/10 -
Outdoor sports9/10
Alliston 3-Day Forecast
More climate data for Alliston
Temperature Rainfall Sunshine Humidity
See the full Alliston 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
Need travel inspiration? Check out our bucket list articles and be inspired.
The 5 most beautiful lakes in Canada
Canada in September: Where Is the Best Weather?
Compare September weather in Toronto, Montreal, Vancouver, Quebec City and Osoyoos to find Canada's warmest, driest and sunniest destinations.
Canoeing the south Nahannii
The South Nahanni in the northwest of Canada is one of the most impressive wilderness rivers in the world. Canoeing the south Nahanni is something you must add to your bucket list.
See Polar Bears in Churchill Canada
Thousands of bears gather at the small town of Churchill. In the evening the northern lights give a light show against the dark evening sky. An unforgettable experience.