September weather forecast and climate
Banff, Canada

What is the temperature in September in Banff?

The average high-temperature, in September, in Banff, is 16.4°C (61.5°F), while the average low-temperature is 2.6°C (36.7°F).

How many days does it rain in September in Banff?

In Banff, Canada, in September, during 9.2 rainfall days, typically, 32.9mm (1.3") of precipitation is accumulated.

How many days does it snow in September in Banff?

In Banff, Canada, during September, snow falls for 2.1 days and regularly aggregates up to 65mm (2.6") of snow.
Average temperature in September - Banff, Canada
  • Average high temperature in September: 16.4°C

Warmest months (with the highest average high temperature) are July and August (21.6°C).
The month with the lowest average high temperature is December (-5.2°C).

  • Average low temperature in September: 2.6°C

The month with the highest average low temperature is July (7.3°C).
The coldest month (with the lowest average low temperature) is December (-13.3°C).

Average humidity in September - Banff, Canada
  • Average humidity in September: 43.3%

The month with the highest relative humidity is December (66%).
The month with the lowest relative humidity is June (39.6%).

Average rainfall in September - Banff, Canada
  • Average rainfall in September: 32.9mm

The wettest month (with the highest rainfall) is July (67.8mm).
The driest month (with the lowest rainfall) is December (1.7mm).

Average rainfall days in September - Banff, Canada
  • Average rainfall days in September: 9.2 days

The month with the highest number of rainy days is July (16 days).
Months with the lowest number of rainy days are January and December (0.9 days).

Average snowfall in September - Banff, Canada
  • Average snowfall in September: 65mm

The month with the highest snowfall is November (308mm).
The month with the lowest snowfall is July (1mm).

Average snowfall days in September - Banff, Canada
  • Average snowfall days in September: 2.1 days

The month with the highest number of snowfall days is January (9.4 days).
The month with the lowest number of snowfall days is July (0.1 days).

Average daylight in September / Average sunshine in September - Banff, Canada
  • Average daylight in September: 12.6h

The month with the longest days is June (Average daylight: 16.5h).
The month with shortest days is December (Average daylight: 8h).

  • Average sunshine in September: 5h

The month with most sunshine is July (Average sunshine: 8h).
Months with least sunshine are January, November and December (Average sunshine: 2).

Average UV index in September - Banff, Canada
  • Average UV index in September: 5

The month with the highest UV index is July (UV index 8).
Months with the lowest UV index are January, February, November and December (UV index 1).

deutscheenglishespañolрусский中文