Rome's coldest months are January and February. During these two months, it rains every couple of days but some days can be quite pleasant with high temperatures of 12°C (53°F). At night, the temperature can reach below freezing. If you don't mind a little bit of cold, Rome is beautiful during winter.

January is officially the coldest month in Rome, Italy, with average daytime highs around 12∘C and nighttime lows dipping to approximately 3∘C. While Rome enjoys a Mediterranean climate that is generally milder than northern European cities, January can feel quite damp and biting due to the humidity and occasional "Tramontana" winds blowing from the north. Snow is extremely rare in the city center, happening perhaps once or twice a decade, but heavy rain is common during this month. For travelers, the cold is manageable with a medium-weight coat, scarf, and gloves, and the lack of summer crowds makes it an excellent time for visiting the Vatican or the Colosseum without the sweltering heat. It is worth noting that while January is the peak of winter, the city often enjoys "Ottobrate Romanas" or sudden clear, sunny days where the temperature can feel surprisingly pleasant in the direct sun. However, the short daylight hours and the frequent overcast skies reinforce January's status as the heart of the Roman winter.