In May, Onomichi typically sees daytime highs of 22.2°C and overnight lows around 14.1°C. Compared to the annual average high of 19.2°C, May runs +3.0°C.
May in Onomichi averages a daytime high of 22.2°C and an overnight low of 14.1°C.
May runs +3.0°C compared to Onomichi's annual average high of 19.2°C, ranking #5 of 12 months by warmth.
Plan for daytime highs near 22.2°C and cooler evenings around 14.1°C.