Calgary weather in September (Alberta, Canada)

You can expect very pleasant temperatures during the day in September. The average maximum daytime temperature in Calgary in September lies at 19.0°C (66.2°F). The average minimum temperature goes down to around 4.3°C (39.74°F) (often the minimum temperature is noted at night).

Rainfall during September is moderate with an average of 42mm (1.6 inches). There are generally around 6 rainy days. The sun also shows itself regularly this month with 209 hours of sunshine during the entire month.


Calgary, monthly averages in September

Show in Fahrenheit
Min Temperature 4 °C  
Max Temperature 19 °C  
Chance of Rain 22%  
Precipitation 41mm  
Rainy days 7 days  
Humidity 44% *  
Sunshine 209 hrs *  
Percentage Sunshine 55% *  

Where to stay in Calgary

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.

Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20-29ºC / 68-84ºF and not too much precipitation (less than 90mm / 3.5inches a month).

So what to wear in September? Bring a rain jacket in case it rains during your stay. Plan on layering your clothes, as some days or part of the day it can be nice and warm, while other times it can get quite chilly.

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 Calgary.

Our site offers climate and forecast data for almost all countries 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 suggests which destination suits your ideal climate conditions. Find out where to go with our weather planner.