Banff weather in September (Alberta, Canada)

What can you expect from the weather in Banff during September? Check out this comprehensive weather guide.

In September, Banff generally has moderate temperatures and moderate snow/rainfall. Throughout the day, temperatures typically settle at around 12°C. But by evening, they drop to around -1°C.

Banff in September usually receives moderate snow/rainfall, averaging around 69 mm for the month. Snow/rain is expected on roughly 10 days.

The area experiences a moderate amount of sunshine, with approximately 172 hours of sunlight expected. This makes it neither too gloomy nor overly bright.

If your ideal day consists of dry skies and moderate temperatures July and August generally stand out with the best circumstances. While January, February, March, April, May, June, October, November and December tend to showcase less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized Banff climate page with graphs.


Banff, monthly averages in September

Min Temperature -1°C  
Max Temperature 12°C  
Chance of Rain 32%  
Precipitation 69 mm  
Rainy days 10 days  
Humidity 43%  
Sunshine 172 hours  
Percentage Sunshine  

Where to go in Canada in September

Find out more about the weather in Canada in September and which places have the best weather conditions in this month.

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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 and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in Banff in September?

Plan on layering your clothes. Some days or part of the day it will be nice and warm and some moments it can be a bit chilly. Bring a rain jacket in case it rains during your stay.

What To Do

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

Outdoor sports

Interested in more climate information?

Weather and Climate provides you with all the information you need about the climate in Banff.

Our site offers climate and forecast data for every country in the world. Are you going to Canada? On this website you can find historical weather averages for many cities in Canada. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.