In December, Acilia-Castel Fusano-Ostia Antica typically sees daytime highs of 13.6°C and overnight lows around 5.4°C. Compared to the annual average high of 20.6°C, December runs -7.1°C.
December in Acilia-Castel Fusano-Ostia Antica averages a daytime high of 13.6°C and an overnight low of 5.4°C.
December runs -7.1°C compared to Acilia-Castel Fusano-Ostia Antica's annual average high of 20.6°C, ranking #10 of 12 months by warmth.
Plan for daytime highs near 13.6°C and cooler evenings around 5.4°C.