The best times to visit Calgary for ideal weather are
June 25th to September 9th
based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.
Calgary Travel Guide
Other Calgary Travel Info
Weather in Calgary
Average temperatures in Calgary vary drastically. Considering humidity, temperatures feel cold for most of the year with a very low chance of rain or snow throughout the year. The area is less temperate than some — in the 37th percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Calgary, the hottest months are July, August, and then June. See average monthly temperatures below. The warmest time of year is generally early to mid July where highs are regularly around 75.7°F (24.3°C) with temperatures rarely dropping below 52°F (11.1°C) at night.
Calgary Temperatures (Fahrenheit)
Calgary Temperatures (Celsius)
The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.
Calgary Perceived Temperature (F)
Calgary Perceived Temperature (C)
Average Calgary Temperatures by Month
Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.
|Month||Avg. High (°F)||Avg. Mean (°F)||Avg. Low (°F)|
|Month||Avg. High (°C)||Avg. Mean (°C)||Avg. Low (°C)|
Precipitation (Rain or Snow)
If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Calgary are December, February, and then January. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around early to mid January. For example, on the week of January 8th there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in early to mid June with an average of 3 days of significant precipitation the week of June 11th.
When can you find snow in Calgary? Weather stations report large amounts of snow likely to be deepest around June, especially close to mid June. The best time to ski (if at all) in Calgary is often around around December 3rd when fresh powder is deepest. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.
Chance of Precipitation
The graph below shows the % chance of rainy and snowy days in Calgary.
Snow on the Ground
The graph below shows the average snow on the ground in Calgary (in).
Average Rain and Snow by Month
|Month||Daily Chance of Rain||Average Snow Depth (in)||Total Precipitation (in)|
|Month||Daily Chance of Rain||Average Snow Depth (cm)||Total Precipitation (cm)|
Humidity and Wind
Calgary has some slightly muggy months, with moderately humid months on the other side of the year. The least humid month is May (44.7% relative humidity), and the most humid month is December (62.4%).
Wind in Calgary is usually extremely calm. The windiest month is December, followed by January and February. December’s average wind speed of around 0.5 knots (0.5 MPH or 0.9 KPH) is considered “very calm.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in late December where average top sustained speeds reach 6.6 knots, which is considered a light breeze.
Relative Humidity (%)
The graph below shows the average % humidity by month in Calgary.
The graph below shows wind speed (max and average) in knots.
Average Wind Speeds
Show Wind Speeds
All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.
|Month||Avg. Wind||Avg. Wind Feel||Sustained High Wind||High Wind Feel|
Show Relative Humidity by Month
|Month||Avg. Relative Humidity|
Is it Safe to Travel to Calgary?
The Busiest and Least Crowded Months
The busiest month for tourism in Calgary, AB, Canada is July, followed by June and August. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit Calgary in December. Those willing to visit at these times will likely find it the least expensive month.
Estimated Tourism by Month
Most Popular Months to Visit
Overall Calgary Travel Experience by Season
Spring (March through May)
Humidity and temperatures combine to make this season feel moderately cold. Highs range from 63.6°F (17.6°C) and 26.5°F (-3.1°C) with warmer temperatures in the later months. Rain is rare with 2 to 5 days of significant precipitation per month. Spring is the second busiest for tourism, which makes it a good time for those looking for things to do.
Summer (June through August)
The middle-year months have comfortably cool weather with high temperatures that are comfortable. These months see the most precipitation with 5 to 7 days of precipitation per month. June – August is the busiest season for tourism in Calgary, so lodging and other accommodations may cost more than usual.
Fall (September through November)
Fall daily highs range from 68.4°F (20.2°C) and 30.5°F (-0.8°C), which will feel chilly given the humidity and wind. It rains or snows a normal amount: 1 to 3 days per month. Tourism is fairly slow during these months due to the weather, so hotels may be lower priced.
Winter (December through February)
Weather is far too cold this time of year in Calgary to be enjoyable for warm weather travelers. The average high during this season is between 35.7°F (2.1°C) and 26.5°F (-3.1°C). On average, it rains or snows a very small amount: 0 to 1 times per month. These times of year are the slowest with tourists.