Our verdict
The best time to visit Calgary is September-November
In the summer months, temperatures can reach as high as 25℃ (76℉) in Calgary. In the colder months such as December, temperatures usually get down to an average minimum of -12℃ (11℉).
If you want to get the most out of your time visiting Calgary, or you’re just afraid of the dark, the days in July are usually the longest between sunrise and sunset. To stay dry, avoid travelling to Calgary in June – It’s the wettest month of the year.
Learn everything you need to know to help you decide when to go to Calgary below, and don’t forget to use the awesome travel tools we know and love to help you find the best deals and make booking your vacation a breeze!
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Calgary seasons
Before you continue, it’s important to know when the seasons are in Calgary as they might be different to yours depending on where in the world you’re travelling from. Calgary is in the Northern Hemisphere, so the seasons fall during these months:
| Season | Months |
|---|---|
| Summer | June to August |
| Autumn/fall | September to November |
| Winter | December to February |
| Spring | March to May |
Average temperatures in Calgary
If the temperature is a big factor for you to help you decide when to visit, the chart below shows the average minimum and maximum temperatures in Calgary for each month side-by-side so you can easily see the difference in weather throughout the year. To see the temperatures in both Celsius (°C) and Fahrenheit (°F), hover or tap the shaded boxes on the graph.
Calgary climate by month
If you already have a rough idea about which months you might want to travel, the section below shows a detailed breakdown of the climate in Calgary for each month so you can see if it all suits your wants and needs. Scroll down, or use the quick menu below to jump to your preferred month.
Jump to:
Calgary in January
- Average temperature: -8℃ (19℉)
- Average high temperature: -4℃ (25℉)
- Average low temperature: -11℃ (12℉)
- Average humidity: 82%
- Average sunny days: 18 days
- Average rainfall: 9mm (0") over 4 days
- Average snow days: 12 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Calgary in January, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.
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Calgary in February
- Average temperature: -8℃ (18℉)
- Average high temperature: -4℃ (25℉)
- Average low temperature: -11℃ (12℉)
- Average humidity: 82%
- Average sunny days: 16 days
- Average rainfall: 12mm (0") over 3 days
- Average snow days: 13 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Calgary in February, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.
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Calgary in March
- Average temperature: -3℃ (27℉)
- Average high temperature: 2℃ (35℉)
- Average low temperature: -7℃ (20℉)
- Average humidity: 79%
- Average sunny days: 16 days
- Average rainfall: 15mm (1") over 4 days
- Average snow days: 13 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Calgary in March, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.
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Calgary in April
- Average temperature: 4℃ (39℉)
- Average high temperature: 8℃ (47℉)
- Average low temperature: -1℃ (31℉)
- Average humidity: 70%
- Average sunny days: 13 days
- Average rainfall: 28mm (1") over 9 days
- Average snow days: 10 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Calgary in April, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.
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Calgary in May
- Average temperature: 10℃ (51℉)
- Average high temperature: 15℃ (60℉)
- Average low temperature: 5℃ (41℉)
- Average humidity: 62%
- Average sunny days: 14 days
- Average rainfall: 46mm (2") over 14 days
- Average snow days: 2 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Calgary in May, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.
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Calgary in June
- Average temperature: 14℃ (57℉)
- Average high temperature: 19℃ (66℉)
- Average low temperature: 8℃ (46℉)
- Average humidity: 67%
- Average sunny days: 11 days
- Average rainfall: 51mm (2") over 16 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Calgary in June, make sure you pack a warm jacket or coat.
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Calgary in July
- Average temperature: 16℃ (62℉)
- Average high temperature: 23℃ (73℉)
- Average low temperature: 10℃ (50℉)
- Average humidity: 68%
- Average sunny days: 15 days
- Average rainfall: 35mm (1") over 14 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Calgary in July, make sure you pack a coat or jumper for the evenings and some light clothes for the daytime.
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Calgary in August
- Average temperature: 16℃ (61℉)
- Average high temperature: 23℃ (73℉)
- Average low temperature: 10℃ (50℉)
- Average humidity: 61%
- Average sunny days: 18 days
- Average rainfall: 21mm (1") over 10 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Calgary in August, make sure you pack a coat or jumper for the evenings and some light clothes for the daytime.
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Calgary in September
- Average temperature: 12℃ (53℉)
- Average high temperature: 18℃ (64℉)
- Average low temperature: 7℃ (44℉)
- Average humidity: 59%
- Average sunny days: 20 days
- Average rainfall: 16mm (1") over 8 days
- Average snow days: 1 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Calgary in September, make sure you pack a warm jacket or coat.
Calgary in October
- Average temperature: 4℃ (40℉)
- Average high temperature: 10℃ (49℉)
- Average low temperature: 0℃ (33℉)
- Average humidity: 66%
- Average sunny days: 22 days
- Average rainfall: 11mm (0") over 5 days
- Average snow days: 4 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Calgary in October, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.
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Calgary in November
- Average temperature: -3℃ (27℉)
- Average high temperature: 1℃ (34℉)
- Average low temperature: -7℃ (20℉)
- Average humidity: 76%
- Average sunny days: 21 days
- Average rainfall: 12mm (0") over 2 days
- Average snow days: 8 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Calgary in November, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.
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Calgary in December
- Average temperature: -8℃ (17℉)
- Average high temperature: -5℃ (23℉)
- Average low temperature: -12℃ (11℉)
- Average humidity: 80%
- Average sunny days: 19 days
- Average rainfall: 10mm (0") over 3 days
- Average snow days: 12 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Calgary in December, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.
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