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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 perfect. 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.

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Check the conditions for any month of the year.

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

Alliston Temperature in September

Min TemperatureMin Temperature 10°C (50°F)  
Max TemperatureMax Temperature 22°C (72°F)  
Chance of RainChance of Rain 36%  
PrecipitationPrecipitation 78 mm (3.1 in)  
Rainy daysRainy days 11 days  
HumidityHumidity 59% *  
SunshineSunshine 216 hours *  
Percentage SunshinePercentage Sunshine 58% *  
* Data from: Mississauga, Canada (65 KM, 40 Miles).

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 →

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Legend 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.

Cycling
9/10
Walking
9/10
Barbeque
8/10
Camping
4/10
Outdoor sports
9/10

Select a Month

Check the conditions for any month of the year.

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

More climate data for Alliston