In May, Sao Luis typically sees daytime highs of 30.9°C and overnight lows around 23.6°C. Compared to the annual average high of 31.4°C, May runs -0.4°C.
May in Sao Luis averages a daytime high of 30.9°C and an overnight low of 23.6°C.
May runs -0.4°C compared to Sao Luis's annual average high of 31.4°C, ranking #8 of 12 months by warmth.
Plan for daytime highs near 30.9°C and cooler evenings around 23.6°C.