Monte Carlo Weather in December

Monte Carlo in December sees moderate daytime temperatures of 12°C (54°F) and nighttime lows of 7°C (45°F). Rainfall is fairly high this month at around 89 mm (3.5 in), so pack a rain jacket to stay dry.

Rainfall in Monte Carlo in December

Based on our climate data of the past 30 years, about 9 days of rain are anticipated, with 89 mm (3.5 in) on average. When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.

Temperature in Monte Carlo in December

In December, Monte Carlo gets moderate temperatures, with highs of 12°C (54°F). Nights cool to around 7°C (45°F). December is known for being in the winter season. Conditions are often most pleasant around the middle of the day. Nights drop to 7°C (45°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.

Sunshine in Monte Carlo in December

The area experiences a moderate amount of sunshine, with approximately 144 hours of sunlight expected. This means a decent mix of sun and overcast.

Average water temperature in December

The water temperature is 15°C (59°F) — chilly, but perfectly fine for a swim if you're not too sensitive to cold water. A short wetsuit can make longer sessions more comfortable.

December in Monte Carlo can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.

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For a detailed overview over the year and the best time to visit Monaco, check out our Monte Carlo's climate page.

Monte Carlo Temperature in December

Min Temperature 7°C (45°F)  

Max Temperature 12°C (54°F)  

Water Temperature 15°C (59°F)  

Chance of Rain 29%  

Precipitation 89 mm (3.5 in)  

Rainy days 9 days  

Sunshine 144 hours  

Percentage Sunshine 50%  

Daily Historical Temperatures

50-year average (1976-2025)

Based on our historical records, temperatures in Monte Carlo typically stay consistent throughout December, with daily highs averaging around 12°C (54°F). Nights are cold, with lows around 6°C (43°F).

Average temperatures in December

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Daily Historical Precipitation

50-year average (1976-2025)

Average daily rainfall for each day of the month based on long-term records.

Average precipitation in December

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‹ January February March April May June July August September October November December ›

Historical weather for Monte Carlo in December

Browse day-by-day weather records for Monte Carlo spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

Historical weather Temperatures Precipitation

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‹ January February March April May June July August September October November December ›

Monte Carlo historical weather extremes in December

Our historical data for Monte Carlo spans 1976 to 2025, revealing these weather extremes.

• Monte Carlo recorded its highest December temperature of 20°C (68°F) on December 9, 1993.
• The lowest daytime temperature in December was 4°C (39°F), recorded on December 28, 1996.
• Monte Carlo registered its coldest December night on December 29, 1996, with temperatures dropping to -2°C (28°F).

What to Wear in Monte Carlo in December

The weather can swing between comfortable and chilly in December, so flexibility is key. Pack a variety of tops, at least one warm layer, and both shorts and long pants. This gives you options no matter what the day brings. Expect heavy rainfall, so bring good rain protection and waterproof bags. The water temperature sits at about 15°C (59°F), which is too chilly for most people to enjoy swimming. Leave the swimsuit at home unless you love cold water. Bring sunglasses since you'll have some sunny periods throughout the month

What To Do in Monte Carlo in December

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

5/10

Cycling

6/10

Walking

6/10

Camping

4/10

Outdoor sports

6/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Monaco, check out our Monte Carlo's climate page.

More climate data for Monte Carlo

Temperature Rainfall Sunshine Water Temp

See the full Monte Carlo climate overview or explore weather in Monaco.