Monte-Carlo Weather in December
What's the weather like in Monte-Carlo (Monaco) in December 2025?
The climate in Monte-Carlo during December can be summarized as cool and reasonably dry.
December is in the winter in Monte-Carlo and is typically the 3rd coldest month of the year. Daytime maximum temperatures average around a cool 11°C (51°F), whilst at night 4°C (39°F) is normal.
| Daytime temperature | 10.7°C 51.2°F |
|---|---|
| Nightly temperature | 4°C 39.1°F |
| Average temperature | 7.3°C 45.1°F |
| Daily sunshine | 5.3 hrs |
| Avg rainfall | 76 mm 3 ins |
| Rainy days | 9 days |
| Sea temperature | 14.7°C 58.4°F |
| Humidity | 68% |
| Windspeed | 15.8kph 10 mph |
On average December is the 5th wettest month of the year in Monte-Carlo with around 76mm 3 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.
On the flip side this corresponds to an average of 5.3 hours of sunshine per day.
December temperatures in Monte-Carlo
December rainfall
December hourly sunshine
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 Monte-Carlo in December 2025.
Other monthly averages
Best places to visit in December
Monte-Carlo weather stats
| Hottest month: | July | 24.5°C 76.1°F |
|---|---|---|
| Driest month: | July | 23mm 0.9ins |
| Sunniest month: | July | 10.9hrs |
| Coldest month: | January | 9.4°C 48.9°F |
| Wettest month: | October | 102mm 4ins |
© Google