In May, Porto Velho typically sees daytime highs of 30.6°C and overnight lows around 22.2°C. Compared to the annual average high of 31.2°C, May runs -0.7°C.
May in Porto Velho averages a daytime high of 30.6°C and an overnight low of 22.2°C.
May runs -0.7°C compared to Porto Velho's annual average high of 31.2°C, ranking #8 of 12 months by warmth.
Plan for daytime highs near 30.6°C and cooler evenings around 22.2°C.