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Canada weather

Weather in Lake Louise for September 2025

Your guide to Lake Louise weather in September - trends and predictions

    Snow Forecast ❄️

  • With an average of 2 snowy days, Lake Louise usually enjoys a light touch of snow in September.
    According to Lake Louise snow forecast for September 2025, 2 snowy days are expected until the end of the month. The closest date with snow is Friday, 26 September.

    • Temperatures

  • Until now, September 2025 in Lake Louise has been nearly identical to the historical average, with a temperature of 17.7 °C (showing only a slight deviation of 0.4 °C).

  • The forecast for the next days in Lake Louise predicts a temperature of 11 °C, which is cooler than the historical average.

  • In general, the average temperature in Lake Louise at the beginning of September is 20 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 5.6 °C by the end of September.

    • Rain 🌧️

  • Lake Louise experiences moderate rainfall in September, with an average of 10 rainy days and a total precipitation of 113.5 mm.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
18
Dry days
Average rainy days
10
Rainy days
Average snowy days
2
Snow days
Average temperatures
12°/2°
Temperatures
Average wind speed
11 km/h
Avg max wind
Average humidity
70 %
Avg humidity

Lake Louise Weather September

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

Temperatures trend during September in Lake Louise

See the weather trend as well as the moving average line

September weather in Lake Louise day by day

Click on a date for more information
August October
Date Weather Temperatures Rain Snow More
1 Sept. Sunny
Sunny
 22° /7° 0 mm 0 cm
2 Sept. Patchy light rain with thunder
Patchy light rain with thunder
 22° /8° 2.5 mm 0 cm
3 Sept. Patchy rain possible
Patchy rain possible
 19° /6° 0 mm 0 cm
4 Sept. Patchy rain possible
Patchy rain possible
 16° /5° 0.1 mm 0 cm
5 Sept. Sunny
Sunny
 19° /3° 0 mm 0 cm
6 Sept. Partly cloudy
Partly cloudy
 21° /6° 0 mm 0 cm
7 Sept. Sunny
Sunny
 21° /7° 0 mm 0 cm
8 Sept. Sunny
Sunny
 18° /7° 0.2 mm 0 cm
9 Sept. Sunny
Sunny
 17° /4° 0.1 mm 0 cm
10 Sept. Patchy light rain with thunder
Patchy light rain with thunder
 13° /4° 2.1 mm 0 cm
11 Sept. Patchy light rain with thunder
Patchy light rain with thunder
 15° /4° 5.1 mm 0 cm
12 Sept. Light rain
Light rain
 14° /5° 3.4 mm 0 cm
13 Sept. Patchy rain possible
Patchy rain possible
 15° /3° 0.3 mm 0 cm
14 Sept. Light rain shower
Light rain shower
 11° /4° 4.5 mm 0 cm
15 Sept. Thundery outbreaks possible
Thundery outbreaks possible
 12° /2° 9.8 mm 0 cm
16 Sept. Partly cloudy
Partly cloudy
 17° /1° 0 mm 0 cm
17 Sept. Sunny
Sunny
 18° /1° 0 mm 0 cm
18 Sept. Sunny
Sunny
 18° /5° 0 mm 0 cm
19 Sept. Patchy rain possible
Patchy rain possible
 17° /5° 3.2 mm 0 cm
20 Sept. Sunny
Sunny
 17° /3° 0 mm 0 cm
21 Sept. Patchy rain possible
Patchy rain possible
 10° /0° 1 mm 0 cm
22 Sept. Sunny
Sunny
 11° /-2° 0 mm 0 cm
23 Sept. Patchy rain possible
Patchy rain possible
 8° /0° 0.7 mm 0 cm
24 Sept. Patchy rain possible
Patchy rain possible
 8° /1° 1.6 mm 0 cm
25 Sept. Patchy rain possible
Patchy rain possible
 7° /0° 1.4 mm 0 cm
26 Sept. Patchy rain possible
Patchy rain possible
 5° /-4° 0.9 mm 0.5 cm
27 Sept. Patchy rain possible
Patchy rain possible
 4° /-5° 0.1 mm 0 cm
28 Sept. Partly cloudy
Partly cloudy
 7° /-5° 0.1 mm 0 cm
29 Sept. Patchy rain possible
Patchy rain possible
 7° /-3° 0.1 mm 0 cm
30 Sept. Overcast
Overcast
 1° /-5° 0 mm 0 cm
Next
Important Notice
Our weather forecast for Lake Louise 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 Lake Louise forecast closer to your planned date for the most up-to-date weather information.
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Lake Louise in September - FAQ

What are the expected maximum and minimum temperatures in Lake Louise during September?
Prepare for cooler days with highs just around 12° and colder nights, dipping below 2°.
How much rainfall should be expected in Lake Louise during September?
Significant rainfall exceeding 113.5 mm is expected in Lake Louise during September, occurring over more than 10 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Lake Louise in September 2025?
Lake Louise experiences an average snowfall of 16.04 cm during September, occurring over 2 days.
What are the typical wind conditions in Lake Louise during September?
The average wind speed in Lake Louise during September is 11 km/h, suggesting breezy to windy conditions, depending on your activities.

Lake Louise snow forecast September 2025

Track daily snowfall levels and discover Lake Louise’s snowy potential this September ❄️

September rainfall patterns in Lake Louise

Explore the daily rainfall trends and prepare for Lake Louises September weather 💧

UV exposure in Lake Louise during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️

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Location coordinates Where is Lake Louise?

Get accurate weather forecasts for Lake Louise, located at latitude 51.425 and longitude -116.179. Stay updated with localized weather information tailored for Lake Louise.

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