Calgary Weather in August
Canada · Humid Continental climate · Data averaged from 2020-01-01 to 2024-12-31 (5 years)
August in Calgary sees average temperatures ranging from a low of 10.9°C (51.6°F) to a high of 23.7°C (74.7°F), with a mean of 17.2°C (63.0°F). Compared to the annual average of 4.6°C (40.3°F), this month is 12.6°C warmer than the yearly norm. Precipitation averages 52.9mm, making it approximately 12.0mm wetter than the monthly average of 41.0mm. The city receives an average of 12.0 hours of sunshine per day during August, with relative humidity averaging 63.0%. Wind speeds reach an average maximum of 17.4 km/h. For travelers, this month offers a temperature experience in Calgary, with wetter-than-average conditions compared to the rest of the year.
Calgary's high altitude and continental position create a climate with wide temperature ranges. I've studied the Chinook winds that provide dramatic winter warming, sometimes raising temperatures by 20°C in hours. The best time for visiting is June to August, when the weather is warmest and the nearby Rocky Mountains are accessible for hiking.
August vs Adjacent Months
| Metric | July | August | September |
|---|---|---|---|
| Mean Temp | 18.1°C (64.6°F) | 17.2°C (63.0°F) | 13.3°C (55.9°F) |
| Rainfall | 50.4mm | 52.9mm | 29.0mm |
| Sunshine | 13.6 hrs | 12.0 hrs | 10.3 hrs |
| Humidity | 66.1% | 63.0% | 60.0% |
| Wind | 16.9 km/h | 17.4 km/h | 17.4 km/h |
| Rainy Days | 16.8 | 12.2 | 9.0 |
Seasonal Context
August falls in Summer in the Northern Hemisphere. Summer brings the warmest conditions of the year with the longest daylight hours. For travelers visiting Calgary in August, the data indicates favorable conditions based on the combination of temperature, precipitation, and daylight hours.
Frequently Asked Questions
What is the average temperature in Calgary in August?
The average temperature in Calgary during August ranges from 10.9°C (51.6°F) to 23.7°C (74.7°F), with a mean of 17.2°C (63.0°F).
How much does it rain in Calgary in August?
Calgary receives an average of 52.9mm of precipitation in August, spread across approximately 12.2 rainy days.
What should I pack for Calgary in August?
Based on August weather data, pack layers including light jackets and t-shirts, plus an umbrella.
Is August a good time to visit Calgary?
August is a good time to visit Calgary, with comfortable temperatures and manageable rainfall.
Other Months for Calgary
Cities with Similar August Climate (Humid Continental)
Data Source: Open-Meteo historical archive (2020-01-01 to 2024-12-31). Daily measurements aggregated into monthly climate normals. Coordinates: 51.05°, -114.07°. Timezone: America/Edmonton. Last updated: 2026-07-30.