In August, Rouen typically sees daytime highs of 22.2°C and overnight lows around 12.1°C. Compared to the annual average high of 14.3°C, August runs +7.9°C.
August in Rouen averages a daytime high of 22.2°C and an overnight low of 12.1°C.
August runs +7.9°C compared to Rouen's annual average high of 14.3°C, ranking #2 of 12 months by warmth.
Plan for daytime highs near 22.2°C and cooler evenings around 12.1°C.