Calgary Weather in October
What's the weather like in Calgary (Alberta) in October 2025?
The climate in Calgary during October can be summarized as cool and dry.
October is in the fall / autumn in Calgary and is typically the 6th warmest month of the year. Daytime maximum temperatures average around a cool 12°C (54°F), whilst at night -1°C (30°F) is normal.
| Daytime temperature | 12.2°C 54°F |
|---|---|
| Nightly temperature | -1°C 30.2°F |
| Average temperature | 5.6°C 42.1°F |
| Daily sunshine | 6.2 hrs |
| Avg rainfall | 17 mm 0.7 ins |
| Rainy days | 5 days |
| Sea temperature | 9.1°C 48.5°F |
| Humidity | 59% |
| Windspeed | 14.4kph 9 mph |
On average October is the 6th driest month of the year in Calgary with around 17mm 0.7 inches of rain making it a dry time to visit. This rainfall is typically spread over 5 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.2 hours of sunshine per day.
October temperatures in Calgary
October rainfall
October hourly sunshine
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Calgary in October 2025.
Other monthly averages
Best places to visit in October
Calgary weather stats
| Hottest month: | July | 22.6°C 72.7°F |
|---|---|---|
| Driest month: | February | 12mm 0.5ins |
| Sunniest month: | July | 10.9hrs |
| Coldest month: | January | -4.9°C 23.2°F |
| Wettest month: | June | 79mm 3.1ins |
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