In May, Frankfurt am Main typically sees daytime highs of 18.8°C and overnight lows around 8.3°C. Compared to the annual average high of 13.8°C, May runs +5.1°C.
May in Frankfurt am Main averages a daytime high of 18.8°C and an overnight low of 8.3°C.
May runs +5.1°C compared to Frankfurt am Main's annual average high of 13.8°C, ranking #5 of 12 months by warmth.
Plan for daytime highs near 18.8°C and cooler evenings around 8.3°C.