Sunny Beach weather in December 2025

Expect 7°C daytime maximum temperatures in the shade with on average 2 hours of sunshine per day in Sunny Beach in December based on long-term weather averages. There is usually 8 days with some rainfall and 60 mm of average monthly rainfall in December.

  • 7°C maximum daytime temperature in December in Sunny Beach7
    7°C max day temperature
  • 2 hours of sunshine per day
  • 8 days with some rainfall in December in Sunny Beach8
    8 days with some rainfall
  • 1°C minimum night-time temperature in December in Sunny Beach1
    1°C min night temperature
  • 9 hours of daylight per day in December in Sunny Beach9
    9 hours of daylight per day
  • No heat & humidity in December in Sunny Beach0
    No heat & humidity
  • 60 mm monthly rainfall in December in Sunny Beach60
    60 mm of monthly rainfall
  • UV (maximum) index 1 (Low) in December in Sunny Beach1
    1 (Low) UV index
  • 9°C sea temperature in December in Sunny Beach9
    9°C sea temperature

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The December weather guide for Bulgaria (Sunny Beach) 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 Sunny Beach in December?

Daytime temperatures usually reach 7°C in Sunny Beach in December, falling to 1°C at night.

How sunny is it in Sunny Beach in December?

There are normally 2 hours of bright sunshine each day in Sunny Beach in December - that's 26% of daylight hours.

Is the sea cold around Sunny Beach in December?

The average sea temperature around Sunny Beach in December is 9°C.

Does it rain in Sunny Beach in December?

There are usually 8 days with some rain in Sunny Beach in December and the average monthly rainfall is 60mm.

Sunny Beach December sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st December 2025 07:20 16:37
Tuesday, 16th December 2025 07:33 16:37
Wednesday, 31st December 2025 07:39 16:45

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