Banff weather in August
August in Banff: nice, a little rain, with clean air — one of the weakest months to visit.
#11 of 12 months in Banff · #595 of 604 destinations to visit in August · comfort 19/100 (tier F)
Updated June 2026 · climate normals from ERA5 reanalysis
Banff climate normals — August
| Daytime high | 23°C / 73°F | 😎 nice |
|---|---|---|
| Nighttime low | 11°C / 51°F | |
| Feels like (high) | 21°C / 70°F | |
| Rainfall | 74 mm / 2.9 in | 🌦 some rain |
| Rainy days | 13 days | |
| Humidity | 66% | 💧 humid |
| Dew point | 10°C / 50°F | |
| Sunshine | 11.9 h/day | |
| Daylight | 14.5 h | |
| Wind | 12 km/h / 8 mph | |
| Snowfall | 1.8 cm / 0.7 in | |
| Air quality (US AQI) | 47 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Banff?
Loading map…
Banff in August — FAQ
- Is August a good time to visit Banff?
- August in Banff: nice, a little rain, with clean air — one of the weakest months to visit. It ranks #11 of 12 months for Banff on SeasonMap's comfort score (19/100).
- What is the weather like in Banff in August?
- In August, Banff averages a daily high of 22.5°C and a low of 10.8°C, with about 73.5 mm of rain over roughly 13.2 rainy days.
- What is the air quality in Banff in August?
- Banff has a mean US Air Quality Index of about 47 in August.
- Does it snow in Banff in August?
- Banff sees roughly 1.8 cm of snowfall in August.