In May, Cergy typically sees daytime highs of 18.1°C and overnight lows around 7.4°C. Compared to the annual average high of 14.6°C, May runs +3.5°C.
May in Cergy averages a daytime high of 18.1°C and an overnight low of 7.4°C.
May runs +3.5°C compared to Cergy's annual average high of 14.6°C, ranking #5 of 12 months by warmth.
Plan for daytime highs near 18.1°C and cooler evenings around 7.4°C.