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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the Canada Scene Weather Desk. Data from Environment and Climate Change Canada and other national met services via Open-Meteo.
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Calgary weather is defined by its semi-arid, high-elevation prairie climate, bringing wide daily temperature swings, low humidity, and over 300 days of sunshine a year. The live forecast above gives current conditions, but for planning, expect cold, dry winters and warm, short summers.
What is the best time to visit Calgary?
The most pleasant months are July and August, when daytime highs average 22–25 °C and the city is alive with festivals like the Calgary Stampede. May and June can be rainy and volatile, while September offers crisp, sunny days ideal for hiking. Winters (November to March) are sunny but bitter, with frequent Chinook winds that can raise temperatures by 15 °C in hours. Snowbird and March-break visitors should pack layers and expect frost—but also good value on lodgings outside peak summer.
What should I pack for Calgary weather?
Year-round, the key is layers. A windproof jacket is essential even in July, as evenings cool quickly. For winter, a heavy parka, insulated boots, and a warm hat are non-negotiable; the wind chill can push temps below −30 °C. For summer, bring sunscreen and sunglasses—the UV index is high at 1,048 metres elevation. Rain gear is useful in late spring, though Calgary’s rainfall is relatively low (about 41 cm annually).
Does it snow in September in Calgary?
Yes, light snowfall is possible in September, especially after mid-month, but accumulations rarely last. The average first measurable snow occurs in early October, so a warm jacket is wise even if a toque isn’t yet required.
How do I check calgary weather hourly or the radar?
Use the live forecast above for current conditions, then explore Environment Canada’s station for the calgary weather radar and calgary weather hourly updates. For a broader look at calgary weather 14 day and calgary weather next 30 days trends, consult the Weather Network.
Is Calgary weather very windy?
Yes, Calgary is one of Canada’s windiest major cities. Chinook winds can gust over 100 km/h in winter, quickly melting snow. Summer winds are lighter but still noticeable, so secure your hat when strolling downtown.
Sources
For more Canadian city guides, see our Canada weather hub or compare with nearby Edmonton Weather.