The climate in Rome during December can be summarized as cool and a little damp.
December is in the winter in Rome and is typically the 3rd coldest month of the year. Daytime maximum temperatures average around a cool 13°C (55°F), whilst at night 4°C (39°F) is normal.
| Daytime temperature | 12.9°C 55.2°F |
|---|---|
| Nightly temperature | 4.1°C 39.4°F |
| Average temperature | 8.5°C 47.3°F |
| Daily sunshine | 4 hrs |
| Avg rainfall | 98 mm 3.8 ins |
| Rainy days | 14 days |
| Sea temperature | 16.4°C 61.4°F |
| Humidity | 79% |
| Windspeed | 9.4kph 6 mph |
On average December is the 2nd wettest month of the year in Rome with around 98mm 3.8 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 14 days, although this may vary considerably.
On the flip side this corresponds to an average of 4 hours of sunshine per day.
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Rome in December 2025.
Best places to visit in December
| Hottest month: | July | 29.8°C 85.6°F |
|---|---|---|
| Driest month: | July | 19mm 0.7ins |
| Sunniest month: | July | 11.6hrs |
| Coldest month: | January | 11.9°C 53.4°F |
| Wettest month: | November | 117mm 4.6ins |