In May, Kumagaya typically sees daytime highs of 23.1°C and overnight lows around 13.0°C. Compared to the annual average high of 19.5°C, May runs +3.7°C.
May in Kumagaya averages a daytime high of 23.1°C and an overnight low of 13.0°C.
May runs +3.7°C compared to Kumagaya's annual average high of 19.5°C, ranking #5 of 12 months by warmth.
Plan for daytime highs near 23.1°C and cooler evenings around 13.0°C.