In August, Calgary typically sees daytime highs of 21.6°C and overnight lows around 7.2°C. Compared to the annual average high of 9.5°C, August runs +12.1°C.
August in Calgary averages a daytime high of 21.6°C and an overnight low of 7.2°C.
August runs +12.1°C compared to Calgary's annual average high of 9.5°C, ranking #2 of 12 months by warmth.
Plan for daytime highs near 21.6°C and cooler evenings around 7.2°C.