Cold in Dec
15°C average high
avg high · 6° at night
25°C+ on rarely
Italy
Rome weather in December
Is it warm? No. December in Rome is cold: afternoons average 13°C and nights 5°C. Most days (80%) peak between 11°C and 16°C.
Cold · average high
13°C
25°C or more on almost no days; 20°C or more on almost no days.
- Average low5°overnight
- Sea—inland
- Rainy days887 mm in the month
- SkyOften cloudy48% cloud · 35% clear days
How warm it really gets
Every December afternoon from 2011–2025: 465 days. Most (80%) peaked between 11° and 16°.
December, year by year
The average December high in each year. The warmest, 2022, averaged 16°C; the coolest, 2012, 12°C.
Compared with home
Average December highs. Expect rain on about 8 days (87 mm in a typical month).
- Rome13°
- Cork10°
- Dublin9°
- London9°
- Belfast8°
- Manchester8°
- Glasgow7°
Warmer in December, not much further
Flying times are estimates from Dublin; Rome is about 2h 45m.
Cool in Dec
17°C average high
avg high · 9° at night
25°C+ on rarely
Cool in Dec
17°C average high
avg high · 8° at night
25°C+ on rarely
Air: ERA5 reanalysis via Open-Meteo, 2011–2025. Rainy day = 2 mm or more. Clear day = average cloud cover of 30% or less. These are averages of past weather, not a forecast. Methodology