In May, Siegen typically sees daytime highs of 16.2°C and overnight lows around 5.8°C. Compared to the annual average high of 11.5°C, May runs +4.7°C.
May in Siegen averages a daytime high of 16.2°C and an overnight low of 5.8°C.
May runs +4.7°C compared to Siegen's annual average high of 11.5°C, ranking #5 of 12 months by warmth.
Plan for daytime highs near 16.2°C and cooler evenings around 5.8°C.