In May, Windsor typically sees daytime highs of 20.5°C and overnight lows around 8.2°C. Compared to the annual average high of 14.3°C, May runs +6.2°C.
May in Windsor averages a daytime high of 20.5°C and an overnight low of 8.2°C.
May runs +6.2°C compared to Windsor's annual average high of 14.3°C, ranking #5 of 12 months by warmth.
Plan for daytime highs near 20.5°C and cooler evenings around 8.2°C.