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Slovenia temperatures in December

In Slovenia in December the average maximum daytime temperatures are low and range from 2°C in Podkoren to 11°C in Piran. Nighttime temperatures generally drop to 7°C in Piran and -5°C in Podkoren. December falls during the winter season.

What is the temperature of the different cities in Slovenia in December?

Find the average daytime temperatures in December for the most popular destinations in Slovenia on the map below. Click on a destination dot for more detailed information.

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Legend very warm warm pleasant moderate cold very cold
Very warm means maximum temperatures above 30°C. Warm: 22°C to 30°C. Pleasant: 18°C to 22°C Moderate: 12°C to 18°C. Cold: 2°C to 12°C. Very cold: lower than 2°C

  • What is the warmest city in December in Slovenia?
  • Based on our systematic data collection, Piran has been identified as the city with the highest average temperatures. The daytime temperature usually hovers around 11°C, while at night is goes down to an approximate temperature of 7°C."

  • What is the coldest city in December in Slovenia?
  • In our database, Podkoren is the chilliest city in December in Slovenia. Daytime temperatures typically peak at 2°C, while the nighttime lows hover around -5°C.

  • How much sun does Slovenia get in December?
  • Ljubljana experiences limited sunny days, amounting to roughly 57 hours of sunshine. This makes it perfect for those who lean towards cooler, cloudier settings rather than intense sunlit days

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