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Canada weather

Weather in Banff for September 2027

Your guide to Banff weather in September - trends and predictions

    Temperatures

  • In general, the average temperature in Banff at the beginning of September is 19 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 13.4 °C by the end of September.

    • Rain 🌧️

  • Banff experiences moderate rainfall in September, with an average of 6 rainy days and a total precipitation of 54.5 mm.

    • More

  • Is September a good time to visit Banff? check out the best time to travel to Banff page.

  • ✨ Is September a good time to visit Banff? – Ask the AI Weatherman

Average dry days
24
Dry days
Average rainy days
6
Rainy days
Average snowy days
0
Snow days
Average temperatures
16°/5°
Temperatures
Average wind speed
10 km/h
Avg max wind
Average humidity
64 %
Avg humidity

Banff Weather September

Move between months or click on a day
August
October
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Sunny
23°
2
Patchy rain possible
21°
3
Patchy rain possible
19°
4
Patchy rain possible
14°
5
Light rain
17°
6
Light rain
19°
7
Sunny
20°
8
Partly cloudy
18°
9
Sunny
19°
10
Light rain
13°
11
Patchy light rain with thunder
13°
12
Light rain
14°
13
Patchy rain possible
14°
14
Thundery outbreaks possible
11°
15
Light rain
10°
16
Sunny
16°
17
Light rain
19°
18
Partly cloudy
18°
19
Overcast
18°
20
Sunny
17°
21
Cloudy
16°
22
Thundery outbreaks possible
13°
23
Overcast
16°
24
Cloudy
19°
25
Sunny
18°
26
Partly cloudy
9°
27
Partly cloudy
11°
28
Overcast
14°
29
Partly cloudy
12°
30
Sunny
10°

Temperatures trend during September in Banff

See the weather trend as well as the moving average line

September weather in Banff day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Sunny
Sunny
 23° /10° 0 mm 5
2 Sept. Patchy rain possible
Patchy rain possible
 21° /9° 1.8 mm 4
3 Sept. Patchy rain possible
Patchy rain possible
 19° /8° 0.3 mm 4
4 Sept. Patchy rain possible
Patchy rain possible
 14° /4° 1.6 mm 3
5 Sept. Light rain
Light rain
 17° /6° 7.1 mm 4
6 Sept. Light rain
Light rain
 19° /8° 9.1 mm 4
7 Sept. Sunny
Sunny
 20° /10° 0.1 mm 4
8 Sept. Partly cloudy
Partly cloudy
 18° /8° 0 mm 5
9 Sept. Sunny
Sunny
 19° /8° 0.3 mm 5
10 Sept. Light rain
Light rain
 13° /5° 8.5 mm 3
11 Sept. Patchy light rain with thunder
Patchy light rain with thunder
 13° /4° 2.2 mm 3
12 Sept. Light rain
Light rain
 14° /4° 5.8 mm 4
13 Sept. Patchy rain possible
Patchy rain possible
 14° /5° 2.3 mm 3
14 Sept. Thundery outbreaks possible
Thundery outbreaks possible
 11° /4° 5.8 mm 2
15 Sept. Light rain
Light rain
 10° /4° 2.7 mm 2
16 Sept. Sunny
Sunny
 16° /3° 0 mm 4
17 Sept. Light rain
Light rain
 19° /6° 5.8 mm 4.3
18 Sept. Partly cloudy
Partly cloudy
 18° /5° 0 mm 4.3
19 Sept. Overcast
Overcast
 18° /4° 0 mm 4
20 Sept. Sunny
Sunny
 17° /4° 0 mm 4
21 Sept. Cloudy
Cloudy
 16° /3° 0 mm 3
22 Sept. Thundery outbreaks possible
Thundery outbreaks possible
 13° /2° 0.1 mm 3
23 Sept. Overcast
Overcast
 16° /2° 0.2 mm 3.8
24 Sept. Cloudy
Cloudy
 19° /4° 0 mm 3.7
25 Sept. Sunny
Sunny
 18° /5° 0.3 mm 3.7
26 Sept. Partly cloudy
Partly cloudy
 9° /0° 0.4 mm 3
27 Sept. Partly cloudy
Partly cloudy
 11° /-1° 0 mm 3
28 Sept. Overcast
Overcast
 14° /0° 0 mm 3
29 Sept. Partly cloudy
Partly cloudy
 12° /1° 0.1 mm 3
30 Sept. Sunny
Sunny
 10° /0° 0.2 mm 3
Next
Important Notice
Our weather forecast for Banff in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Banff forecast closer to your planned date for the most up-to-date weather information.
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Banff in September - FAQ

What are the expected maximum and minimum temperatures in Banff during September?
Enjoy moderate daytime temperatures of up to 16° and cooler nights around 5°. Ideal for a range of outdoor activities, from hiking to city tours.

How much rainfall should be expected in Banff during September?
Moderate rainfall is anticipated in Banff during September, with a total of 54.5 mm spread over approximately 6 days. Considering plans for rainy days is advisable.

What are the typical wind conditions in Banff during September?
The average wind speed in Banff during September is 10 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Banff

Explore the daily rainfall trends and prepare for Banffs September weather 💧
Typically, Banff has 6 rainy days in September with a total of 54.5 mm of rainfall.

UV exposure in Banff during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Get accurate weather forecasts for Banff, located at latitude 51.176 and longitude -115.57. Stay updated with localized weather information tailored for Banff.

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