In May, Assen typically sees daytime highs of 17.1°C and overnight lows around 6.3°C. Compared to the annual average high of 12.9°C, May runs +4.2°C.
May in Assen averages a daytime high of 17.1°C and an overnight low of 6.3°C.
May runs +4.2°C compared to Assen's annual average high of 12.9°C, ranking #5 of 12 months by warmth.
Plan for daytime highs near 17.1°C and cooler evenings around 6.3°C.