ClimateExplore the planning map
Climate · Banff

Banff in September

Mild and damp, as the days shorten.

Typical weather, averaged over 30 years

September in Banff is mild: highs near 65°F, lows near 39°F. Rain falls on about three days a week, less often as the month goes on, and the days shorten by 1 hour 24 minutes from the first week to the last.September in Banff is mild: highs near 18°C, lows near 4°C. Rain falls on about three days a week, less often as the month goes on, and the days shorten by 1 hour 24 minutes from the first week to the last.

High
65°F18°Caverage
Low
39°F4°Caverage
Wet days
3a week · 41% of days
Daylight
12h 31mon average

Is September a good time to visit Banff?

A good month, just outside Banff's best months, which run from July to August.

How we judge it: every month is scored on how close its typical high comes to the range from 70°F to 80°F, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.How we judge it: every month is scored on how close its typical high comes to the range from 21°C to 27°C, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.

How September sits in the year

week by week

Temperature

Highs near 65°F in September, against 22°F to 75°F through the year.Highs near 18°C in September, against -6°C to 24°C through the year.

Chance of a wet day

41% of days in September, against 29% to 67% through the year.

Cloud cover

53% cover in September, against 48% to 68% through the year.

Daylight

12h 31m in September, against 7h 58m to 16h 29m through the year.

Week by week, lightly smoothed, with September shaded. The olive line marks the best months. Hover or tap a week for its figures.

Either side

  1. August75°24°low 48°low 9°3 wet days a weekRain on about three days a week.
  2. September65°18°low 39°low 4°3 wet days a weekRain on about three days a week.
  3. October50°10°low 27°low -3°2 wet days a weekRain on about two days a week.

Where Banff sits, in September

America/Edmonton
this place
typical high in September 40°F4°C95°F35°C
Sunrise, mid-September
7:16 AMsets 8:00 PM
Above the sea
1,380 mupland
Latitude
51.2°Nnorthern hemisphere
Nearest of ours
Sunshine Village18 km south-west

The land around Banff, shaded by its typical high in September, the planning map's own layer. Hover the map for the figure at that spot; tap it on a phone. Clock times are local, for the 15th.

Elsewhere in Canada in September

high · low · wet days
See September on the planning mapThe whole year in Banff

Typical weather, averaged over 30 years (1995–2024), from the 11 km grid square nearest Banff. Temperatures are adjusted against 66 weather stations: daytime highs read about 3.1°F cold in the source data and are raised to match, and both highs and lows are adjusted for the town's height (1,380 m) against the climate model's (1,818 m).Temperatures are adjusted against 66 weather stations: daytime highs read about 1.7°C cold in the source data and are raised to match, and both highs and lows are adjusted for the town's height (1,380 m) against the climate model's (1,818 m). Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not. Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.

Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not.

Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.