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

Monte Carlo's shift into December sets the average high-temperature at a moderate 13.5°C (56.3°F), a figure that deviates only slightly from November's 16.2°C (61.2°F). An average low-temperature of 5.7°C (42.3°F) is observed during December nights.

Rainfall

In Monte Carlo, during December, the rain falls for 6 days and regularly aggregates up to 78mm (3.07") of precipitation. In Monte Carlo, during the entire year, the rain falls for 62.7 days and collects up to 769mm (30.28") of precipitation.

Sea temperature

In Monte Carlo, Monaco, the average seawater temperature in December is 14.9°C (58.8°F).
Note: Beware when you're in 14.9°C (58.8°F) waters; 13°C (55.4°F) is chilling and anything below 10°C (50°F) could cause breathing hindrance and a sudden cold shock, given your physical condition.

Daylight

The month with the shortest days is December, 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

With an average of 4.6h of sunshine, December has the least sunshine of the year.

UV index

January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the average person.
Note: In December, the maximum UV index of 1 suggests this advice:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.