Banff weather in May
May in Banff: cool, a little rain, with reliable snow — an excellent time to visit.
#3 of 12 months in Banff · #190 of 604 destinations to visit in May · comfort 85/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Banff climate normals — May
| Daytime high | 11°C / 53°F | 🙂 cool |
|---|---|---|
| Nighttime low | 2°C / 36°F | |
| Feels like (high) | 10°C / 50°F | |
| Rainfall | 63 mm / 2.5 in | 🌦 some rain |
| Rainy days | 14 days | |
| Humidity | 72% | 💧 humid |
| Dew point | 3°C / 37°F | |
| Sunshine | 12 h/day | |
| Daylight | 15.6 h | |
| Wind | 10 km/h / 6 mph | |
| Snowfall | 25.7 cm / 10.1 in | |
| Air quality (US AQI) | 52 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Banff?
Loading map…
Banff in May — FAQ
- Is May a good time to visit Banff?
- May in Banff: cool, a little rain, with reliable snow — an excellent time to visit. It ranks #3 of 12 months for Banff on SeasonMap's comfort score (85/100).
- What is the weather like in Banff in May?
- In May, Banff averages a daily high of 11.4°C and a low of 2.2°C, with about 63.1 mm of rain over roughly 13.6 rainy days.
- What is the air quality in Banff in May?
- Banff has a mean US Air Quality Index of about 52 in May.
- Does it snow in Banff in May?
- Banff sees roughly 25.7 cm of snowfall in May.