In May, Hekinan typically sees daytime highs of 22.4°C and overnight lows around 14.1°C. Compared to the annual average high of 19.7°C, May runs +2.8°C.
May in Hekinan averages a daytime high of 22.4°C and an overnight low of 14.1°C.
May runs +2.8°C compared to Hekinan's annual average high of 19.7°C, ranking #5 of 12 months by warmth.
Plan for daytime highs near 22.4°C and cooler evenings around 14.1°C.