Mamaia weather in December 2025

Expect daytime maximum temperatures of 6°C in Mamaia, Romania in December based on long-term weather averages. There are 2 hours of sunshine per day on average with 10 days with some rainfall.

  • 6°C maximum daytime temperature in December in Mamaia6
    6°C max day temperature
  • 2 hours of sunshine per day
  • 10 days with some rainfall in December in Mamaia10
    10 days with some rainfall
  • 0°C minimum night-time temperature in December in Mamaia0
    0°C min night temperature
  • 9 hours of daylight per day in December in Mamaia9
    9 hours of daylight per day
  • No heat & humidity in December in Mamaia0
    No heat & humidity
  • 39 mm monthly rainfall in December in Mamaia39
    39 mm of monthly rainfall
  • UV (maximum) index 1 (Low) in December in Mamaia1
    1 (Low) UV index
  • 8°C sea temperature in December in Mamaia8
    8°C sea temperature

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The December weather guide for Romania (Mamaia) 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 cold is it in Mamaia in December?

Daytime temperatures usually reach 6°C in Mamaia in December, falling to 0°C at night.

How sunny is it in Mamaia in December?

There are normally 2 hours of bright sunshine each day in Mamaia in December - that's 21% of daylight hours.

Is the sea cold around Mamaia in December?

The average sea temperature around Mamaia in December is 8°C.

Does it rain in Mamaia in December?

There are usually 10 days with some rain in Mamaia in December and the average monthly rainfall is 39mm.

Mamaia December sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st December 2025 07:21 16:28
Tuesday, 16th December 2025 07:35 16:27
Wednesday, 31st December 2025 07:41 16:36

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