In May, Ishikari typically sees daytime highs of 17.1°C and overnight lows around 6.7°C. Compared to the annual average high of 12.0°C, May runs +5.1°C.
May in Ishikari averages a daytime high of 17.1°C and an overnight low of 6.7°C.
May runs +5.1°C compared to Ishikari's annual average high of 12.0°C, ranking #5 of 12 months by warmth.
Plan for daytime highs near 17.1°C and cooler evenings around 6.7°C.