Calgary weather by month & the best time to visit
Canada · alpine / mountain city · continental climate
The best time to visit Calgary is July — its sunniest month (Sunshine Score 82/100), with August and June close behind. Calgary averages about 2,396 hours of sunshine a year. Daytime highs around 24°C / 75°F and roughly 57 mm of rain in July.
When is the best time to visit Calgary?
For sunshine, the best time to visit Calgary is July, then August and June. The dullest month is January (0/100, 18 mm of rain). The full month-by-month picture is in the table below.
How sunny is Calgary?
Calgary gets a moderate 2,396 hours of sunshine a year. 82 Sunshine Score points separate July (82) from January (0), so the month you pick matters. It ranks #14 of 242 destinations in Canada for annual sunshine, above the national median of 2,024 hours. Rain has a clear season: the wettest stretch, around June, carries about 45% of the annual 513 mm.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV |
|---|---|---|---|---|---|
| January | 0 | -3° / 27°F | -12° / 10°F | 18 mm | 1 |
| February | 0 | -2° / 28°F | -12° / 10°F | 19 mm | 1 |
| March | 0 | 4° / 39°F | -7° / 19°F | 24 mm | 3 |
| April | 14 | 10° / 50°F | -2° / 28°F | 41 mm | 4 |
| May | 54 | 16° / 61°F | 4° / 39°F | 67 mm | 5 |
| June | 73 | 20° / 68°F | 8° / 46°F | 109 mm | 6 |
| July | 82 | 24° / 75°F | 11° / 52°F | 57 mm | 6 |
| August | 82 | 23° / 73°F | 10° / 50°F | 59 mm | 5 |
| September | 70 | 18° / 64°F | 5° / 41°F | 47 mm | 4 |
| October | 15 | 10° / 50°F | -2° / 28°F | 29 mm | 2 |
| November | 0 | 2° / 36°F | -7° / 19°F | 23 mm | 1 |
| December | 0 | -4° / 25°F | -12° / 10°F | 20 mm | 0 |
Nearest destinations
Head-to-head
How Calgary compares month by month: Calgary vs Edmonton · Calgary vs Saskatoon · Calgary vs Kelowna · Calgary vs Kalispell · all comparisons
Calgary: questions and answers
What kind of destination is Calgary?
Calgary is a alpine / mountain city in Canada at 1,079 m elevation with a continental climate.
How many hours of sunshine does Calgary get a year?
Calgary gets about 2,396 hours of sunshine a year, at its best around July.
When is the best time to visit Calgary?
The sunniest time to visit Calgary is July, when the Sunshine Score peaks at 82/100 (with August and June close behind). Expect daytime highs around 24°C / 75°F.
What is the least sunny month in Calgary?
January is the least sunny month in Calgary, scoring 0/100 with about 18 mm of rain.
How strong is the sun in Calgary?
The typical midday UV index in Calgary peaks around 6 (high) in June, easing to about 0 (low) in December. Month-by-month midday UV values are in the UV column of the table on this page.
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