In May, Petropolis typically sees daytime highs of 26.6°C and overnight lows around 16.4°C. Compared to the annual average high of 28.2°C, May runs -1.6°C.
May in Petropolis averages a daytime high of 26.6°C and an overnight low of 16.4°C.
May runs -1.6°C compared to Petropolis's annual average high of 28.2°C, ranking #9 of 12 months by warmth.
Plan for daytime highs near 26.6°C and cooler evenings around 16.4°C.