In May, Buenos Aires typically sees daytime highs of 18.7°C and overnight lows around 9.3°C. Compared to the annual average high of 21.8°C, May runs -3.1°C.
May in Buenos Aires averages a daytime high of 18.7°C and an overnight low of 9.3°C.
May runs -3.1°C compared to Buenos Aires's annual average high of 21.8°C, ranking #8 of 12 months by warmth.
Plan for daytime highs near 18.7°C and cooler evenings around 9.3°C.