In August, Trois-Rivieres typically sees daytime highs of 24.1°C and overnight lows around 12.6°C. Compared to the annual average high of 10.1°C, August runs +14.0°C.
August in Trois-Rivieres averages a daytime high of 24.1°C and an overnight low of 12.6°C.
August runs +14.0°C compared to Trois-Rivieres's annual average high of 10.1°C, ranking #2 of 12 months by warmth.
Plan for daytime highs near 24.1°C and cooler evenings around 12.6°C.