In May, Hamilton typically sees daytime highs of 19.1°C and overnight lows around 6.4°C. Compared to the annual average high of 12.8°C, May runs +6.3°C.
May in Hamilton averages a daytime high of 19.1°C and an overnight low of 6.4°C.
May runs +6.3°C compared to Hamilton's annual average high of 12.8°C, ranking #5 of 12 months by warmth.
Plan for daytime highs near 19.1°C and cooler evenings around 6.4°C.