In May, Ajax typically sees daytime highs of 17.1°C and overnight lows around 6.6°C. Compared to the annual average high of 11.7°C, May runs +5.4°C.
May in Ajax averages a daytime high of 17.1°C and an overnight low of 6.6°C.
May runs +5.4°C compared to Ajax's annual average high of 11.7°C, ranking #5 of 12 months by warmth.
Plan for daytime highs near 17.1°C and cooler evenings around 6.6°C.