The weather in September in Alberta

It's cool to moderate in September in Alberta with an average temperature of 18°C. Temperatures this month range from a low of 12°C to a high of 25°C. At night, you can expect temperatures between 4°C and 11°C.

Looking for great weather? September is a good time to be in Alberta. The temperatures are nice, and there’s not too much rain.

Average temperatures and precipitation

This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in September for Alberta, Canada. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.

Temperature records

With 34°C in 2022, Alberta reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 1°C in 2018. The extreme nighttime temperatures ranged from a lowest recorded value of -3°C to a highest value of 17°C.

Precipitation and snowfall

In September, there is an average of 53 mm of precipitation, spread over 8 days. Of the total precipitation, about 1,7 cm falls as snow in September. The wind speed is around 4 Bft, mostly coming from the Southwest.

Daily weather in September for Alberta

Click on any day in September to get detailed info about the usual weather on that day in Alberta. Check out the historical temperatures and precipitation over the past 10 years on this day.

September weather comparison

  Alberta New York
Average temperature 18°C 27°C
Max. temperature 25°C 31°C
Min. temperature 4°C -5°C
Total precipitation 53 mm 57 mm
Rainy days 8 days 9 days
Total snowfall 1,7 cm 0 cm
Snowy days 1 day 0 days

Start of September

The month of September starts in Alberta with warm temps, averaging around 22°C during the day and nights around 10°C.

Mid September

By mid-September, daytime temps drop to around 17°C, with nights around 7°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.

End of September

By the end of September, the average daytime temperature in Alberta is around 18°C, while nighttime temps are about 7°C. There’s hardly any chance of precipitation. The weather will be mostly dry with plenty of sun.

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UV index

The UV index is a maximum of 7 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.

Check out the climate of Alberta for all months and discover the best travel time

Curious about the weather in other parts of Canada? Check out the climate and weather for spots like Vancouver, Toronto, Niagara Falls, or explore other destinations in Canada.

Temperature charts

These charts show the average temperatures in September in Alberta, Canada. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.

Daily Temperature in September in Alberta

Temperature in September in Alberta over the years

Precipitation charts

These charts show the average amount of precipitation in September in Alberta, Canada. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.

Daily Precipitation in September in Alberta

Total precipitation in September in Alberta over the years

Daily Snowfall in September in Alberta

Snowfall in September in Alberta per year

Daily UV index in September in Alberta

This chart shows the average daily UV index in September in Alberta, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.

Weather experiences in September in Alberta

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Average weather in Alberta by month

Click on a month below to see detailed weather info for Alberta. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.