Canada
Banff in August: weather & travel advice
This month's data profile
Rain shapes the decision
Banff in August is climatically well suited to city breaks and active holidays and hiking. The average daily high is around 17 °C. With about 13 rainy days it is wet.
Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Rank among 12 monthly averages
61/100 · #1
Warmth
#2
Dryness
#4
Sun
#4
Published best categories: Overall, City break, Active
Banff · AugustPhoto: Dietmar Rabich · CC BY-SA 4.0Climate facts
- Average high
- 17 °C
- Average low
- 5 °C
- Rainy days (est.)
- 13 rainy days (est.)
- Sun (est.)
- 7 h/day
- Humidity
- 71 %
Climate evidence with direct month comparison
The highlighted row is the selected month. Precipitation total and rainy days are separate monthly averages.
| Month | Avg high °C | Avg low °C | Rainy days (est.) | Precipitation mm | Sun h/day (est.) | Humidity % | Wind m/s | Score |
|---|---|---|---|---|---|---|---|---|
| July | 17 | 6 | 15 | 73 | 7.7 | 72 | 0.2 | 58 |
| August (selected) | 17 | 5 | 13 | 64 | 6.5 | 71 | 0.3 | 61 |
| September | 12 | 1 | 13 | 57 | 4.7 | 74 | 0.3 | 46 |
How do the previous and next months compare?
Baseline: August (61/100)
Positive and negative values show the change from the selected month.
| Score Δ | Average high Δ | Average low Δ | Rainy days Δ | Rain Δ | Sun Δ | Humidity Δ | Wind Δ | |
|---|---|---|---|---|---|---|---|---|
| July | -3 | +0.2 °C | +0.5 °C | +1.9 | +8.9 mm | +1.2 h | +0.3 % | ±0 m/s |
| September | -15 | -4.7 °C | -4.2 °C | -0.1 | -6.6 mm | -1.8 h | +3 % | ±0 m/s |
All twelve months in context

Find a place to stay
Where to stay in Banff
Compare available stays, prices and cancellation terms for Banff on Booking.com.
Booking.comFind places to stayAffiliate link: there is no extra cost to you.
Useful next decisions
Frequently asked questions
How warm is Banff in August?
The average daily high is around 17 °C, with an average daily low of about 5 °C.
Does it rain a lot in Banff in August?
The curated estimate is about 13 rainy days per month, not a directly measured long-term average. Total precipitation averages around 64 mm for the month. A rainy day does not mean all-day rain.
When is the best time to visit Banff?
By the climate score, August are the strongest months for Banff. August is one of them.