Early autumn · Weather & things to do
Lake Louise in September
Lake Louise cools off: highs slip to 55°F (13°C), from 65°F in August, with lows of 37°F (3°C) and about 3.1 in (80 mm) of rain.
Our comfort score puts it mid-table at 67/100, 3rd of 12.
- Avg high
- 55°F (13°C)
- Avg low
- 37°F (3°C)
- Rain
- 3.1 in (80 mm)
- Humidity
- 81%
- Cloud cover
- 68%
- Daylight
- ~12 h 22 min
- Comfort score
- 67/100 · Good
What September feels like
Cool days top out near 55°F (13°C), better for brisk walks than lingering outside.
Lows average 37°F (3°C).
Showers are part of the month, adding up to about 3.1 in (80 mm).
Plan around September
September sits mid-table; the best months are July & August.
- Comfort slips from 86/100 in August to 67/100.
- September sits inside the Jun – Sep window our Banff & Jasper Loop recommends.
What to pack for September
- Insulated jackethighs only 55°F
- Packable rain jacket or umbrellaa shower or two is likely
- Comfortable walking shoesmost picks involve some walking
What to do in Lake Louise in September
September is good outdoor weather here, so these picks lean toward the open air.
Lake Louise Gondola
Summer gondola on the ski hill with grizzly-habitat views and an interpretive centre.
Why now Our curated notes say it's best Jun–Sep.
Lake Agnes Tea House
Historic 1905 teahouse at a hanging lake, reached by a 3.5 km climb.
Why now Our curated notes say it's best Jun–early Oct.
Fairmont Chateau Lake Louise Boathouse
Rent a red canoe for a paddle on Lake Louise.
Why now Our curated notes say it's best Jun–Sep, morning.
Lake Louise Village Grill & Bar
Family-run since 1990 above Samson Mall. Burgers and Chinese-Western comfort food, open late with a full bar.
Why now September scores 67/100 for comfort, good conditions for being outside.
Moraine Lake
Glacier-fed lake below the Valley of the Ten Peaks; reached only by shuttle or tour.
Why now Our curated notes say it's best Jun–Oct.
Nearby in September
- Banff in September~31 mi · highs 59°F, 2.7 in rain · 2°C (4°F) warmer by day, about as wet
- Jasper in September~129 mi · highs 60°F, 2.3 in rain · 3°C (5°F) warmer by day, drier
- Glacier National Park in September~212 mi · highs 59°F, 2.2 in rain · 2°C (4°F) warmer by day, drier
- Whistler in September~310 mi · highs 63°F, 4.6 in rain · 5°C (8°F) warmer by day, wetter
NASA POWER 2001–2025 monthly averages on a ~50 km grid, temperatures adjusted from the grid cell's ~2,099 m to Lake Louise's ~1,540 m elevation (standard lapse rate). Comfort scores weigh temperature, rain, humidity and cloud: see how we score each month. Check a forecast before you go.
Lake Louise in September: quick answers
Is September a good time to visit Lake Louise?
It's middling, scoring 67/100. The best months are July & August, at up to 86. Expect highs of 55°F (13°C) and 3.1 in (80 mm) of rain. September is inside the Jun – Sep window our Banff & Jasper Loop recommends.
How cold is Lake Louise in September?
Average highs are 55°F (13°C) and average lows 37°F (3°C), making it the 4th-warmest month by daytime highs.
Does it rain a lot in Lake Louise in September?
Some: about 3.1 in (80 mm) of rain falls across September on average, the 6th-driest month of the year. The annual total is about 37.8 in (961 mm).
What should I pack for Lake Louise in September?
Bring insulated jacket (highs only 55°F), packable rain jacket or umbrella (a shower or two is likely) and comfortable walking shoes (most picks involve some walking).
More on Lake Louise
Routes in season in September
- Banff & Jasper Loop Jun – Sep
Planning Lake Louise in September?
Bring the crew into one shared trip: vote on dates, build the day-by-day plan, split costs and share one packing list.