In May, Chetumal typically sees daytime highs of 33.4°C and overnight lows around 21.8°C. Compared to the annual average high of 31.3°C, May runs +2.1°C.
May in Chetumal averages a daytime high of 33.4°C and an overnight low of 21.8°C.
May runs +2.1°C compared to Chetumal's annual average high of 31.3°C, ranking #1 of 12 months by warmth.
Plan for daytime highs near 33.4°C and cooler evenings around 21.8°C.