In May, Mons typically sees daytime highs of 17.4°C and overnight lows around 7.4°C. Compared to the annual average high of 13.6°C, May runs +3.8°C.
May in Mons averages a daytime high of 17.4°C and an overnight low of 7.4°C.
May runs +3.8°C compared to Mons's annual average high of 13.6°C, ranking #5 of 12 months by warmth.
Plan for daytime highs near 17.4°C and cooler evenings around 7.4°C.