Portoroz weather in December 2024

Expect 8°C daytime maximum temperatures in the shade with on average 3 hours of sunshine per day in Portoroz in December. Check more long-term weather averages for Portoroz in December before you book your next holiday to Slovenia in 2024/2025.

  • 8°C maximum daytime temperature in December in Portoroz8
    8°C max day temperature
  • 3 hours of sunshine per day
  • 12 days with some rainfall in December in Portoroz12
    12 days with some rainfall
  • 2°C minimum night-time temperature in December in Portoroz2
    2°C min night temperature
  • 9 hours of daylight per day in December in Portoroz9
    9 hours of daylight per day
  • No heat & humidity in December in Portoroz0
    No heat & humidity
  • 99 mm monthly rainfall in December in Portoroz99
    99 mm of monthly rainfall
  • UV (maximum) index 1 (Low) in December in Portoroz1
    1 (Low) UV index
  • 12°C sea temperature in December in Portoroz12
    12°C sea temperature

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The December weather guide for Slovenia (Portoroz) 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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More about Slovenia

How warm is it in Portoroz in December?

Daytime temperatures usually reach 8°C in Portoroz in December, falling to 2°C at night.

How sunny is it in Portoroz in December?

There are normally 3 hours of bright sunshine each day in Portoroz in December - that's 34% of daylight hours.

How warm is the sea around Portoroz in December?

The average sea temperature around Portoroz in December is 12°C.

Does it rain in Portoroz in December?

There are usually 12 days with some rain in Portoroz in December and the average monthly rainfall is 99mm.

Portoroz December sunrise & sunset times

Browse the sunrise and sunset times for Portoroz in December 2024. Select a month to view Portoroz sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Sunday, 1st December 2024 07:26 16:24
Monday, 16th December 2024 07:40 16:23
Tuesday, 31st December 2024 07:46 16:32

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