In May, Sint-Niklaas typically sees daytime highs of 17.9°C and overnight lows around 7.8°C. Compared to the annual average high of 14.1°C, May runs +3.8°C.
May in Sint-Niklaas averages a daytime high of 17.9°C and an overnight low of 7.8°C.
May runs +3.8°C compared to Sint-Niklaas's annual average high of 14.1°C, ranking #5 of 12 months by warmth.
Plan for daytime highs near 17.9°C and cooler evenings around 7.8°C.