In May, Newmarket typically sees daytime highs of 18.5°C and overnight lows around 6.0°C. Compared to the annual average high of 11.5°C, May runs +6.9°C.
May in Newmarket averages a daytime high of 18.5°C and an overnight low of 6.0°C.
May runs +6.9°C compared to Newmarket's annual average high of 11.5°C, ranking #5 of 12 months by warmth.
Plan for daytime highs near 18.5°C and cooler evenings around 6.0°C.