In May, Jacksonville typically sees daytime highs of 29.3°C and overnight lows around 17.8°C. Compared to the annual average high of 25.8°C, May runs +3.5°C.
May in Jacksonville averages a daytime high of 29.3°C and an overnight low of 17.8°C.
May runs +3.5°C compared to Jacksonville's annual average high of 25.8°C, ranking #5 of 12 months by warmth.
Plan for daytime highs near 29.3°C and cooler evenings around 17.8°C.