In May, Bonn typically sees daytime highs of 18.1°C and overnight lows around 7.2°C. Compared to the annual average high of 13.7°C, May runs +4.4°C.
May in Bonn averages a daytime high of 18.1°C and an overnight low of 7.2°C.
May runs +4.4°C compared to Bonn's annual average high of 13.7°C, ranking #5 of 12 months by warmth.
Plan for daytime highs near 18.1°C and cooler evenings around 7.2°C.