In May, Hannover typically sees daytime highs of 17.5°C and overnight lows around 7.0°C. Compared to the annual average high of 12.9°C, May runs +4.6°C.
May in Hannover averages a daytime high of 17.5°C and an overnight low of 7.0°C.
May runs +4.6°C compared to Hannover's annual average high of 12.9°C, ranking #5 of 12 months by warmth.
Plan for daytime highs near 17.5°C and cooler evenings around 7.0°C.