In May, Ishioka typically sees daytime highs of 21.8°C and overnight lows around 12.7°C. Compared to the annual average high of 18.7°C, May runs +3.1°C.
May in Ishioka averages a daytime high of 21.8°C and an overnight low of 12.7°C.
May runs +3.1°C compared to Ishioka's annual average high of 18.7°C, ranking #5 of 12 months by warmth.
Plan for daytime highs near 21.8°C and cooler evenings around 12.7°C.