In May, Port Saint Lucie typically sees daytime highs of 29.8°C and overnight lows around 19.5°C. Compared to the annual average high of 27.8°C, May runs +2.0°C.
May in Port Saint Lucie averages a daytime high of 29.8°C and an overnight low of 19.5°C.
May runs +2.0°C compared to Port Saint Lucie's annual average high of 27.8°C, ranking #5 of 12 months by warmth.
Plan for daytime highs near 29.8°C and cooler evenings around 19.5°C.