20-Year Climate Average
Rome, Lazio, Italy Weather in December
Normal High
55°F
Normal Low
42°F
Rainy Days
~12 of the month
Chance of Rain
39%
Humidity
78%
UV index
Not available
Daylight
9.2 hours
Peak wind
9 mph
Usually good for: running and hiking.
Based on December climate records from 2006–2025 (Open-Meteo Historical Weather Archive). These are planning averages, not a forecast. Data: Open-Meteo.com, CC BY 4.0.
Current conditions
Forecast versus the climate baseline
64°F
It currently feels like 67°F with 87% humidity, a 61°F dew point and 1 mph wind. Climate averages describe the month; this live reading is what matters for plans today.
69° / 64° · 75% rain
80° / 65° · 18% rain
73° / 67° · 80% rain
Best Months to Visit Rome, Lazio, Italy
Ranked by historical rainy-day frequency — the driest months over the past 20 years.
Methodology
Monthly values use the 2001–2020 observation period. Temperature, precipitation, humidity or dew point, wind, UV and daylight are shown only when the selected source provides them; unavailable fields are never estimated or silently replaced. These are planning normals, not guarantees for a specific trip.
What is the weather like in Rome, Lazio, Italy in December?
The 20-year average high in Rome, Lazio, Italy in December is 55°F, with a low around 42°F and about 12 rainy days.