December weather forecast
Monte Carlo, Monaco

Concluding the year, December in Monte Carlo comes with a winter chill. The temperatures drop further with the UV Index reaching its annual low of 1. The gloves, thick coats and woolen hats make their appearance in December’s fashion scene. The city’s winter is far from the biting cold of other European destinations, making it a popular spot for winter tourists. Despite shorter daylight hours and cooler weather, Monte Carlo retains its enchanting allure.

Temperature

December's onset records an average high-temperature of a still refreshing 13.5°C (56.3°F), a near match to November's 16.2°C (61.2°F). In the month of December, Monte Carlo records a consistent average low-temperature of 5.7°C (42.3°F).

Rainfall

In Monte Carlo, Monaco, in December, it is raining for 6 days, with typically 78mm (3.07") of accumulated precipitation. Throughout the year, there are 62.7 rainfall days, and 769mm (30.28") of precipitation is accumulated.

Sea temperature

In December, the average sea temperature is 14.9°C (58.8°F).
Note: Dipping into 14.9°C (58.8°F) below 10°C (50°F) is possible with the right protection; absent that, anticipate cold shock and hampered breathing. Swimming momentarily at 13°C (55.4°F) can be jarring.

Daylight

December has the shortest days of the year, with an average of 9h and 0min of daylight.
On the first day of the month, sunrise is at 07:44 and sunset at 16:54. On the last day of December, sunrise is at 08:03 and sunset at 17:03 CET.

Sunshine

The month with the least sunshine is December, with an average of 4.6h of sunshine.

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for average individuals.
Note: The maximum UV index, 1 during December, leads to the following recommendations:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.