In May, Rouen typically sees daytime highs of 17.5°C and overnight lows around 7.4°C. Compared to the annual average high of 14.3°C, May runs +3.2°C.
May in Rouen averages a daytime high of 17.5°C and an overnight low of 7.4°C.
May runs +3.2°C compared to Rouen's annual average high of 14.3°C, ranking #5 of 12 months by warmth.
Plan for daytime highs near 17.5°C and cooler evenings around 7.4°C.