In May, Kusatsu typically sees daytime highs of 21.7°C and overnight lows around 11.6°C. Compared to the annual average high of 18.0°C, May runs +3.7°C.
May in Kusatsu averages a daytime high of 21.7°C and an overnight low of 11.6°C.
May runs +3.7°C compared to Kusatsu's annual average high of 18.0°C, ranking #5 of 12 months by warmth.
Plan for daytime highs near 21.7°C and cooler evenings around 11.6°C.