In May, Acilia-Castel Fusano-Ostia Antica typically sees daytime highs of 22.7°C and overnight lows around 11.9°C. Compared to the annual average high of 20.6°C, May runs +2.0°C.
May in Acilia-Castel Fusano-Ostia Antica averages a daytime high of 22.7°C and an overnight low of 11.9°C.
May runs +2.0°C compared to Acilia-Castel Fusano-Ostia Antica's annual average high of 20.6°C, ranking #5 of 12 months by warmth.
Plan for daytime highs near 22.7°C and cooler evenings around 11.9°C.