Banff in September
Golden larch season
By Daan · Last reviewed October 2026
The short answer
September is the best month to visit Banff.
September brings calmer trails and, later in the month, golden larches on the high trails.
September in detail
What September actually feels like
- Weather
- 2–17°C
- Mild days, cold nights.
- Crowds
- Moderate–High
- Busy, calmer than summer.
- Prices
- $$$
- Rates ease.
+Larches turn gold and crowds thin.
–Cold nights and early snow up high.
My tip for September
Hike Larch Valley early; the trailhead is reached by shuttle.
- Hiking
- Photography
How September compares
Against the other eleven months
1st of 12 overall in Banff, 3rd for weather, 8th for space, 8th for value. The emptiest month is April; the best value is April.
See all twelve months for BanffAlso good in September
Weather
Weather in Banff in September
In September Banff averages a high of 17°C (63°F) and a low of 2°C (36°F), with about 45 mm of rain or snow over 12 wet days. The warmest month is July (around 23°C) and the coolest is December (around -5°C); the wettest month is June.
- Average high
- 17°C
- 63°F
- Average low
- 2°C
- 36°F
- Precipitation
- 45 mm
- Wet days
- 12
Climate data: Environment and Climate Change Canada (Banff, 1991–2020). Temperatures are averages of daily highs and lows.
Quick answers
Banff in September: the questions people ask
- Is September a good time to visit Banff?
- September is the best month to visit Banff. It ranks 1 of 12 months in Banff overall (3 for weather, 8 for space, 8 for value). The main upside: Larches turn gold and crowds thin. The main downside: Cold nights and early snow up high.
- What is the weather like in Banff in September?
- Average highs are around 17°C and lows around 2°C. Expect about 45 mm of rain or snow over roughly 12 wet days. Mild days, cold nights. For comparison, the warmest month is July (around 23°C) and the coolest is December (around -5°C).
- Is Banff crowded in September?
- Crowds are moderate–high. Busy, calmer than summer. The quietest month is April.
- How expensive is Banff in September?
- Prices are at level 3 of 5 ($$$). Rates ease. The best-value month is April.
- When is the best time to visit Banff?
- In the CrowdFreeViews month scores, September is the best month overall (this month). The quietest month is April and the best value is April.
Ready to book September in Banff?
Larches turn gold and crowds thin.
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