Monte-Carlo weather in December 2025

Expect daytime maximum temperatures of 11°C in Monte-Carlo, Monaco in December based on long-term weather averages. There are 5 hours of sunshine per day on average with typically 76 mm of rainfall in the month.

  • 11°C maximum daytime temperature in December in Monte-Carlo11
    11°C max day temperature
  • 5 hours of sunshine per day
  • 9 days with some rainfall in December in Monte-Carlo9
    9 days with some rainfall
  • 4°C minimum night-time temperature in December in Monte-Carlo4
    4°C min night temperature
  • 9 hours of daylight per day in December in Monte-Carlo9
    9 hours of daylight per day
  • No heat & humidity in December in Monte-Carlo0
    No heat & humidity
  • 76 mm monthly rainfall in December in Monte-Carlo76
    76 mm of monthly rainfall
  • UV (maximum) index 1 (Low) in December in Monte-Carlo1
    1 (Low) UV index
  • 15°C sea temperature in December in Monte-Carlo15
    15°C sea temperature

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The December weather guide for Monaco, represented by Monte-Carlo, (Monte-Carlo) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C / mm)  |  Imperial (°F / inches)

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How warm is it in Monte-Carlo in December?

Daytime temperatures usually reach 11°C in Monte-Carlo in December, falling to 4°C at night.

How sunny is it in Monte-Carlo in December?

There are normally 5 hours of bright sunshine each day in Monte-Carlo in December - that's 52% of daylight hours.

How warm is the sea around Monte-Carlo in December?

The average sea temperature around Monte-Carlo in December is 15°C.

Does it rain in Monte-Carlo in December?

There are usually 9 days with some rain in Monte-Carlo in December and the average monthly rainfall is 76mm.

Monte-Carlo December sunrise & sunset times

Browse the sunrise and sunset times for Monte-Carlo in December 2025. Select a month to view Monte-Carlo sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st December 2025 07:44 16:54
Tuesday, 16th December 2025 07:58 16:54
Wednesday, 31st December 2025 08:04 17:03

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