Lake Louise
September
Weather in Lake Louise for September 2025
Your guide to Lake Louise weather in September - trends and predictions
With an average of 2 snowy days, Lake Louise usually enjoys a light touch of snow in September.
In general, the average temperature in Lake Louise at the beginning of September is 20.3 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 7.1 °C by the end of September.
The climate of Lake Louise in September is notably wet, with an average of 13 rainy days, and a total of 113.5 mm of precipitation.
New! Chat with our AI weatherman - it’s amazing and free.
Snow Forecast ❄️
Temperatures
Rain 🌧️
More
15
Dry days
13
Rainy days
2
Snow days
12°/2°
Temperatures
11 km/h
Avg max wind
71 %
Avg humidity
Lake Louise Weather September
Move between months or click on a day
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
| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| 1 Sept. |  Sunny | 21° /6° | 0 mm | 0 cm | |
| 2 Sept. |  Patchy light rain with thunder | 22° /7° | 4.9 mm | 0 cm | |
| 3 Sept. |  Patchy rain possible | 17° /4° | 0 mm | 0 cm | |
| 4 Sept. | Patchy rain possible | 17° /4° | 0.3 mm | 0 cm | |
| 5 Sept. | Sunny | 21° /5° | 0 mm | 0 cm | |
| 6 Sept. |  Partly cloudy | 22° /6° | 0 mm | 0 cm | |
| 7 Sept. | Sunny | 22° /7° | 0 mm | 0 cm | |
| 8 Sept. | Sunny | 22° /7° | 0.5 mm | 0 cm | |
| 9 Sept. | Sunny | 18° /6° | 0.1 mm | 0 cm | |
| 10 Sept. | Patchy light rain with thunder | 11° /3° | 4.3 mm | 0 cm | |
| 11 Sept. | Patchy light rain with thunder | 12° /3° | 10.1 mm | 0 cm | |
| 12 Sept. |  Light rain | 10° /3° | 6.8 mm | 0 cm | |
| 13 Sept. | Patchy rain possible | 11° /0° | 0.5 mm | 0 cm | |
| 14 Sept. | Light rain shower | 7° /1° | 3.5 mm | 0 cm | |
| 15 Sept. |  Thundery outbreaks possible | 11° /-1° | 0.5 mm | 0 cm | |
| 16 Sept. | Sunny | 14° /0° | 0 mm | 0 cm | |
| 17 Sept. | Thundery outbreaks possible | 15° /2° | 0 mm | 0 cm | |
| 18 Sept. | Partly cloudy | 12° /4° | 0 mm | 0 cm | |
| 19 Sept. |  Mist | 9° /2° | 2 mm | 0 cm | |
| 20 Sept. |  Light freezing rain | 3° /-3° | 5.5 mm | 0 cm | |
| 21 Sept. | Partly cloudy | 6° /-3° | 0 mm | 0 cm | |
| 22 Sept. |  Moderate or heavy rain with thunder | 7° /1° | 7.1 mm | 0 cm | |
| 23 Sept. |  Overcast | 6° /1° | 1.9 mm | 0 cm | |
| 24 Sept. | Fog | 13° /4° | 0 mm | 0 cm | |
| 25 Sept. | Thundery outbreaks possible | 15° /3° | 29.3 mm | 0 cm | |
| 26 Sept. | Overcast | 4° /-2° | 10.5 mm | 6.2 cm | |
| 27 Sept. |  Heavy snow | 4° /-2° | 25.6 mm | 9.9 cm | |
| 28 Sept. | Mist | 10° /-4° | 0 mm | 0 cm | |
| 29 Sept. | Thundery outbreaks possible | 3° /-5° | 0 mm | 0 cm | |
| 30 Sept. | 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.
Change Month
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 13 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 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 ☀️
Quick links
More Lake Louise weather pages
You are here
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.
Found a mistake?
We appreciate your attention to details. Tell us here.