In May, Monterrey typically sees daytime highs of 30.6°C and overnight lows around 16.7°C. Compared to the annual average high of 26.9°C, May runs +3.7°C.
May in Monterrey averages a daytime high of 30.6°C and an overnight low of 16.7°C.
May runs +3.7°C compared to Monterrey's annual average high of 26.9°C, ranking #4 of 12 months by warmth.
Plan for daytime highs near 30.6°C and cooler evenings around 16.7°C.