In September, Cannes typically sees daytime highs of 23.9°C and overnight lows around 16.2°C. Compared to the annual average high of 18.5°C, September runs +5.4°C.
September in Cannes averages a daytime high of 23.9°C and an overnight low of 16.2°C.
September runs +5.4°C compared to Cannes's annual average high of 18.5°C, ranking #4 of 12 months by warmth.
Plan for daytime highs near 23.9°C and cooler evenings around 16.2°C.