Monte Carlo
Monaco
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Monte Carlo, Monaco

A large fountain of water geysers in front of the Monte Carlo Casino in Monte Carlo, Monaco, under a scenic evening view
A large fountain of water geysers in front of the Monte Carlo Casino in Monte Carlo, Monaco, under a scenic evening view
The first month of the winter, December, is still a mild month in Monte Carlo, Monaco, with average temperature varying between 5.7°C (42.3°F) and 13.5°C (56.3°F).

Temperature

In December, the average high-temperature is relatively the same as in November - a moderate 13.5°C (56.3°F). In December, in Monte Carlo, the average low-temperature is 5.7°C (42.3°F).

Rainfall

In December, in Monte Carlo, the rain falls for 6 days. Throughout December, 77.5mm (3.1") of precipitation is accumulated. In Monte Carlo, during the entire year, the rain falls for 62.7 days and collects up to 768.5mm (30.3") of precipitation.

Sea temperature

In Monte Carlo, the average seawater temperature in December is 14.9°C (58.8°F).
Note: Swimming in 14.9°C (58.8°F) is considered life-threatening. Even a few minutes in 13°C (55.4°F) water is uncomfortable, and swimming below 10°C (50°F) may cause total loss of breathing control and cold shock, depending on a person's physique.

Daylight

With an average of 9h of daylight, December has the shortest days of the year.

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 reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to the Sun's UV rays for average individuals.
Note: The average daily UV index of 1 transform into the following instructions:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.

What is the temperature in December in Monte Carlo?

In Monte Carlo, Monaco, in December, the average high-temperature is 13.5°C (56.3°F), and the average low-temperature is 5.7°C (42.3°F).

How much does it rain in Monte Carlo in December?

In December, the rain falls for 6 days. Throughout December, 77.5mm (3.1") of precipitation is accumulated.

How cold is the water in December in Monte Carlo?

In Monte Carlo, Monaco, the average seawater temperature in December is 14.9°C (58.8°F). At temperatures below 10°C (50°F), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 13°C (55.4°F) is not comfortable.

What is the month with the shortest days in Monte Carlo?

December has the shortest days of the year in Monte Carlo, Monaco, with an average of 9h of daylight.

What is the average length of the day in December in Monte Carlo?

In December, the average length of the day is 9h.

What is the month with the least sunshine in Monte Carlo?

With an average of 4.6h of sunshine, December has the least sunshine of the year in Monte Carlo, Monaco.

How long on average sun shines in December in Monte Carlo?

The average sunshine in December in Monte Carlo, Monaco, is 4.6h.

What are the months with the lowest UV index in Monte Carlo?

Months with the lowest UV index in Monte Carlo, Monaco, are January and December, with an average maximum UV index of 1.

What is the UV index reading in December in Monte Carlo?

In December, the average daily maximum UV index in Monte Carlo, Monaco, is 1. A UV Index estimate of 2, and below, represents a low health threat from unsafe exposure to the Sun's UV rays.
Average temperature in December - Monte Carlo, Monaco
  • Average high temperature in December: 13.5°C

The warmest month (with the highest average high temperature) is August (26.6°C).
The month with the lowest average high temperature is January (12.5°C).

  • Average low temperature in December: 5.7°C

Months with the highest average low temperature are July and August (19.3°C).
The coldest month (with the lowest average low temperature) is January (4.9°C).

Average rainfall in December - Monte Carlo, Monaco
  • Average rainfall in December: 77.5mm

The wettest month (with the highest rainfall) is October (108.2mm).
The driest month (with the lowest rainfall) is July (15.6mm).

Average rainfall days in December - Monte Carlo, Monaco
  • Average rainfall days in December: 6 days

The month with the highest number of rainy days is November (7 days).
The month with the lowest number of rainy days is July (1.9 days).

Average sea temperature in December - Monte Carlo, Monaco
  • Average sea temperature in December: 14.9°C

The best month for swimming (with the highest average sea temperature) is August (23.7°C).
The coldest month (with the lowest average sea temperature) is February (13.1°C).

Average daylight in December / Average sunshine in December - Monte Carlo, Monaco
  • Average daylight in December: 9h

The month with the longest days is June (Average daylight: 15.4h).
The month with shortest days is December (Average daylight: 9h).

  • Average sunshine in December: 4.6h

The month with most sunshine is July (Average sunshine: 11h).
The month with least sunshine is December (Average sunshine: 4.6h).

Average UV index in December - Monte Carlo, Monaco
  • Average UV index in December: 1

Months with the highest UV index are June and July (UV index 8).
Months with the lowest UV index are January and December (UV index 1).