Late spring · Weather & things to do
Banff in May
Banff warms up: highs climb to 54°F (12°C), from 39°F in April, with lows of 35°F (2°C) and about 3.3 in (83 mm) of rain.
Our comfort score puts it mid-table at 64/100, 5th of 12.
- Avg high
- 54°F (12°C)
- Avg low
- 35°F (2°C)
- Rain
- 3.3 in (83 mm)
- Humidity
- 77%
- Cloud cover
- 70%
- Daylight
- ~15 h 20 min
- Comfort score
- 64/100 · Good
What May feels like
It's cool, with highs near 54°F (12°C), so a proper jacket stays on most of the day.
Nights cool to an average low of 35°F (2°C).
Some rain is likely, about 3.3 in (83 mm) in the month, so pack for a shower or two.
Long days help: there are roughly 15 h 20 min of daylight mid-month.
Plan around May
May sits mid-table; the best months are July & August.
- Start of the wettest three-month stretch (May – July), which brings about 10.8 in (274 mm) in total.
- The year's biggest warm-up: highs jump 8°C (15°F) from April.
- Comfort improves from 43/100 in April to 64/100.
- Our Banff & Jasper Loop recommends Jun – Sep, so May falls outside its suggested window.
What to pack for May
- Insulated jackethighs only 54°F
- Packable rain jacket or umbrellaabout 3.3 in of rain
- Comfortable walking shoesmost picks involve some walking
What to do in Banff in May
May is good outdoor weather here, so these picks lean toward the open air.
Bow Falls
Wide falls on the Bow River below the Fairmont Banff Springs, an easy walk from town.
Why now May scores 64/100 for comfort, good conditions for being outside.
Cave and Basin National Historic Site
Birthplace of Canada's national parks, with a thermal cave and marsh boardwalk.
Why now Highs near 54°F and 3.3 in of monthly rain make this an easy outdoor pick.
Johnston Canyon
Catwalks bolted into a limestone canyon lead to Lower and Upper Falls.
Why now One to do outside while the weather is on your side.
Banff Gondola
Gondola up Sulphur Mountain to a summit boardwalk with views over six ranges.
Banff Upper Hot Springs
Hot mineral pool with mountain views, next to the gondola base.
Nearby in May
- Lake Louise in May~31 mi · highs 47°F, 3.2 in rain · 4°C (6°F) cooler by day, about as wet
- Jasper in May~158 mi · highs 57°F, 2.7 in rain · 2°C (4°F) warmer by day, about as wet
- Glacier National Park in May~185 mi · highs 52°F, 3.5 in rain · similar daytime temperatures, about as wet
NASA POWER 2001–2025 monthly averages on a ~50 km grid, temperatures adjusted from the grid cell's ~1,960 m to Banff's ~1,388 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.
Banff in May: quick answers
Is May a good time to visit Banff?
It's middling, scoring 64/100. The best months are July & August, at up to 89. Expect highs of 54°F (12°C) and 3.3 in (83 mm) of rain. Our Banff & Jasper Loop recommends Jun – Sep, so May is outside its suggested window.
How cold is Banff in May?
Average highs are 54°F (12°C) and average lows 35°F (2°C), making it the 5th-warmest month by daytime highs.
Does it rain a lot in Banff in May?
Some: about 3.3 in (83 mm) of rain falls across May on average, the 2nd-wettest month of the year. The annual total is about 30.9 in (785 mm).
What should I pack for Banff in May?
Bring insulated jacket (highs only 54°F), packable rain jacket or umbrella (about 3.3 in of rain) and comfortable walking shoes (most picks involve some walking).
Planning Banff in May?
Share this May plan with your group, poll everyone on dates and keep the packing list in one place.