Banff, nestled in the Canadian Rockies, features a cool, dry mountain climate with dramatic seasonal contrasts. Summers are mild and sunny, perfect for hiking and lake activities, while winters are long, cold, and snowy, attracting skiers and snow lovers. Weather can change rapidly, so visitors should always be prepared for variable conditions.
The best times to travel section shows how the months compare for a visit, so you can find the time of year that fits what you want to do.
Background colours of the months:
The colour shows the typical temperature: yellow (hot), green (mild) and blue (cold). How strong the colour is shows the travel season: full colour means high season, soft colour means shoulder season and soft-striped means off season.
Weather symbols:
Each month has one symbol showing what the weather is typically like, such as hot and sunny, freezing or a rainy or snowy season. Use them to quickly spot months that match the weather you want, or to avoid the ones that don't.
Crowdedness:
The people icon shows how busy the place usually is. The more people, the more crowded it gets.
Additional notes:
The grey info boxes point out special things worth knowing, like recurring weather issues or seasonal events.
Banff’s climate is shaped by its high elevation (around 1,400 m), mountainous terrain, and prevailing westerly winds. Winters (November–March) are long, cold, and snowy, with average highs of -5°C to 1°C and lows often dropping to -15°C or colder. Snowfall is frequent, with the town averaging 185–200 cm per year, and the ski resorts receiving even more. Chinook winds can occasionally bring rapid thaws, while wind chill can make temperatures feel much colder. Daylight is short in winter, with only 8–9 hours and 2–3 hours of sunshine per day. Despite the cold, the dry air makes extreme temperatures more bearable, and winter sports thrive from November to May.
Summers (June–August) are mild and pleasant, with average highs of 21–22°C and lows around 7–8°C. July is the warmest month, and daylight can last up to 16–17 hours, with 7–8 hours of sunshine daily. Rainfall is modest, peaking in June and July with brief afternoon showers or thunderstorms. Humidity remains low, and evenings are cool even in midsummer. Spring (April–May) and autumn (September–October) are transitional, with rapidly changing temperatures, melting or accumulating snow, and stunning displays of wildflowers or golden larches. Annual precipitation is moderate (around 450–500 mm), with most falling as snow in winter and rain in summer. Winds are generally light to moderate, but can be brisk during storms, especially at higher elevations.
Banff’s weather is famously unpredictable, so it’s wise to pack for all conditions, especially if heading into the backcountry or higher elevations, where temperatures drop about 1°C for every 200 m of gain. The region’s climate supports a vibrant outdoor culture year-round, from world-class skiing and snowshoeing to hiking, paddling, and wildlife viewing.
| Average climate data for Banff, Canada | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Average maximum temperature (°C) | -6 | -7 | -3 | 2 | 8 | 12 | 17 | 17 | 12 | 3 | -4 | -8 | 17 |
| Average minimum temperature (°C) | -14 | -16 | -11 | -7 | -1 | 3 | 6 | 6 | 2 | -4 | -11 | -15 | -16 |
| Average precipitation (mm) | 18 | 23 | 37 | 57 | 89 | 115 | 77 | 47 | 39 | 34 | 31 | 22 | 590 |
| Average rainfall days (days) | 10 | 10 | 11 | 14 | 20 | 23 | 18 | 14 | 13 | 12 | 11 | 11 | 166 |
| Average snowfall (mm) | 143 | 172 | 271 | 328 | 114 | 10 | 0 | 0 | 61 | 181 | 215 | 176 | 1,670 |
| Average snowfall days (days) | 18 | 19 | 21 | 17 | 7 | 1 | 0 | 0 | 2 | 11 | 18 | 19 | 133 |
| Average relative humidity (%) | 90 | 91 | 91 | 86 | 80 | 71 | 64 | 62 | 68 | 79 | 87 | 91 | 80 |
| Average wind speed (km/h) | 11 | 9 | 9 | 9 | 7 | 8 | 7 | 7 | 8 | 10 | 11 | 11 | 9 |
| Average daily daylight hours (h) | 8 | 10 | 11 | 13 | 15 | 16 | 16 | 14 | 12 | 10 | 8 | 8 | 12 |
| Average daily sunshine hours (h) | 4 | 5 | 6 | 7 | 9 | 9 | 10 | 11 | 8 | 6 | 5 | 4 | 7 |
| Average cloud coverage (%) | 56 | 58 | 57 | 56 | 45 | 40 | 27 | 24 | 33 | 39 | 50 | 57 | 45 |
| Average UV index | 1 | 1 | 1 | 2 | 2 | 3 | 4 | 3 | 2 | 1 | 1 | 2 | 2 |
The best time to visit Banff is from late June to early September, when temperatures are mild (15–22°C), days are long and sunny, and all hiking trails and lakes are accessible. Early autumn (September) is also ideal for fewer crowds and spectacular autumn colours. For winter sports, December to March offers excellent snow and a festive mountain atmosphere.
The least favourable time to visit Banff is during the shoulder months of April and November. These periods are marked by unpredictable weather, limited activities, muddy or icy trails, and many attractions closed. Snow is melting or accumulating, and scenery is less dramatic than in peak summer or winter.
Banff’s annual average temperature is about 1–2°C. January is the coldest month (highs -5°C, lows -15°C), while July is the warmest (highs 21–22°C, lows 7–8°C).
Banff receives about 185–200 cm of snow per year in town, with much more at higher elevations and ski resorts. Snow can fall from October to May, creating excellent conditions for winter sports.
The best hiking season is from late June to mid-September, when trails are snow-free, lakes are thawed, and wildflowers are in bloom. Early autumn offers beautiful larch colours and fewer crowds.
Banff’s annual precipitation is moderate, around 450–500 mm. Most rain falls in June and July as brief afternoon showers or thunderstorms, while winter precipitation is mostly snow.
Banff enjoys about 2–8 hours of sunshine per day, with the most in July and August. Winter months are much cloudier, with only 2–3 hours of sunshine daily.
Winds in Banff are generally light to moderate, but can be brisk during storms or at higher elevations. Chinook winds in winter can bring rapid thaws and warmer temperatures.
Pack layers for all seasons, including insulated, waterproof clothing for winter and rain gear for summer. Even in summer, nights are cool. Always bring sun protection and check the forecast before outdoor activities.
The warmest month, with the highest average maximum temperature, is July (17.1 °C). The month with the lowest average maximum temperature is December (-8 °C). Overall, the average maximum temperature over the whole year is 3.6 °C.
The month with the highest average minimum temperature is July (6.1 °C). The coldest month, with the lowest average minimum temperature, is February (-16 °C). Overall, the average minimum temperature over the whole year is -5.3 °C.
The wettest month, with the highest amount of precipitation, is June (115.5 mm). The driest month, with the least amount of precipitation, is January (18.2 mm). Over the whole year there are 590.4 mm of rainfall on average.
The month with the most days of rain is June (22.6 days). The month with the fewest days of rain is January (9.9 days). Over the whole year there are 166.3 days of rain on average.
The month with the most snowfall is April (327.9 mm). The months with the least snowfall are July and August (0 mm). Over the whole year there are 1,670.5 mm of snowfall on average.
The month with the most days of snowfall is March (21.3 days). The month with the fewest days of snowfall is July (0 days). Over the whole year there are 133.1 days of snowfall on average.
The month with the highest average relative humidity is February (91.3 %). The month with the lowest average relative humidity is August (61.6 %). The overall average relative humidity over the whole year is 80 %.
The windiest month, with the highest average wind speed, is January (11.2 km/h). The calmest month, with the lowest average wind speed, is August (7.2 km/h). The overall average wind speed over the whole year is 9 km/h.
The month with the cloudiest skies, so the highest cloud coverage, is February (58.5 %). The month with the clearest skies, so the lowest cloud coverage, is August (24.1 %). Over the whole year there is an average cloud coverage of 45.3 %.
The month with the longest days, so the most daylight, is June (Average daylight: 16 h). The month with the shortest days, so the least daylight, is December (Average daylight: 8 h). Over the whole year there are 11.8 h of daylight per day on average.
The month with the most sunshine per day is August (Average sunshine: 10.9 h). The month with the least sunshine per day is December (Average sunshine: 4.1 h). Over the whole year there are 7 h of sunlight per day on average.
The month with the highest average UV index is July (UV index: 4). The months with the lowest average UV index are January, February, March, October and November (UV index: 1). Over the whole year the average UV index is 1.9.
