In May, Aachen typically sees daytime highs of 17.4°C and overnight lows around 7.3°C. Compared to the annual average high of 13.2°C, May runs +4.2°C.
May in Aachen averages a daytime high of 17.4°C and an overnight low of 7.3°C.
May runs +4.2°C compared to Aachen's annual average high of 13.2°C, ranking #5 of 12 months by warmth.
Plan for daytime highs near 17.4°C and cooler evenings around 7.3°C.