In August, Cannes typically sees daytime highs of 26.9°C and overnight lows around 18.6°C. Compared to the annual average high of 18.5°C, August runs +8.4°C.
August in Cannes averages a daytime high of 26.9°C and an overnight low of 18.6°C.
August runs +8.4°C compared to Cannes's annual average high of 18.5°C, ranking #2 of 12 months by warmth.
Plan for daytime highs near 26.9°C and cooler evenings around 18.6°C.