September · Canada
Best time to visit Lake Louise in September Weather, crowds & prices
Weather in Lake Louise in September
Average temperature 6°C, 54 mm of rain, about 10 days with 6+ hours of sunshine and 78% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
September score
6.7/10
Ranked #5 of 12 months
- Avg temp
- 6°C
- Rainfall
- 54 mm
- Humidity
- 78%
- Days with 6h+ sun
- 10
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$ · Moderate Cost ($$)
September in Lake Louise scores 6.7/10 for nature and wildlife travel - an above-average month (#5 of 12). Expect around 6°C, 54 mm of rain, and roughly 10 days with 6+ hours of sunshine this month.
Lake Louise's turquoise water and the Victoria Glacier make it the Canadian Rockies' classic view.
September in Lake Louise — middling scores, decent value
Expect 6°C (44°F) in September. A good month for city streets, viewpoints and long meals; leave swimming for another season.
Budget for roughly 54 mm of rain this month — a flexible day or two helps — with about 10 days with 6+ hours of sunshine and 12.4 hours of daylight to work around it.
That is 6.7/10 on the same scale — 5th of 12 months, versus 9.2/10 for the best month here.
Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a packable rain layer, footwear you can get muddy.
Expect mid-season pricing, and crowds are moderate.
If your dates are flexible, July is materially better in Lake Louise — 2.5 points higher on the same scale.
Frequently asked
- What is the weather like in Lake Louise in September?
- In September, Lake Louise averages 6°C, 54 mm of rain, and about 10 days with 6+ hours of sunshine. Its climate-comfort score is 6.7/10.
- Is September a good time to visit Lake Louise?
- September earns a 6.7/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Lake Louise in September?
- Expect about 54 mm of rain in September. Average humidity is 78% and there are about 10 days with 6+ hours of sunshine.
Curated in Lake Louise
Tickets & experiences
Things to do in Lake Louise
Lake Louise, Canada. Live activities and tours from GetYourGuide, matched to this destination.