In May, Otaru typically sees daytime highs of 14.8°C and overnight lows around 5.8°C. Compared to the annual average high of 10.2°C, May runs +4.6°C.
May in Otaru averages a daytime high of 14.8°C and an overnight low of 5.8°C.
May runs +4.6°C compared to Otaru's annual average high of 10.2°C, ranking #5 of 12 months by warmth.
Plan for daytime highs near 14.8°C and cooler evenings around 5.8°C.