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The weather in December in Slovenia

It's cold in December in Slovenia with an average temperature of 6°C. Temperatures this month range from a low of 4°C to a high of 8°C. At night, you can expect temperatures between -2°C and 1°C.

Looking for sun? December isn’t a good month to be in Slovenia. There’s too much chance of rain this month.

Average temperatures and precipitation

This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in December for Slovenia. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.

Temperature records

With 16°C in 2019, Slovenia reached the highest temperature in December over the past 10 years. The lowest daytime temperature in this month was -4°C in 2014. The extreme nighttime temperatures ranged from a lowest recorded value of -14°C to a highest value of 11°C.

Precipitation and snowfall

In December, there is an average of 101 mm of precipitation, spread over 13 days. Of the total precipitation, about 14 cm falls as snow in December. The wind speed is around 2 Bft, mostly coming from the South.

Daily weather in December for Slovenia

Click on any day in December to get detailed info about the usual weather on that day in Slovenia. Check out the historical temperatures and precipitation over the past 10 years on this day.

December weather comparison

  Slovenia New York
Average temperature 6°C 9°C
Max. temperature 8°C 12°C
Min. temperature -2°C -5°C
Total precipitation 101 mm 133 mm
Rainy days 13 days 17 days
Total snowfall 14 cm 9,7 cm
Snowy days 6 days 3 days

Start of December

The month of December starts in Slovenia with cold temps, averaging around 6°C during the day and nights around 1°C.

Mid December

By mid-December, daytime temps stay steady at around 6°C, with nights around 0°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.

End of December

By the end of December, the average daytime temperature in Slovenia is around 7°C, while nighttime temps are about 0°C. A shower might pop up, but overall, the weather will be dry and sunny.

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UV index

The UV index is a maximum of 2 this month. That's a low value on the intensity scale of 1 to 11. The risk of sunburn is minimal at this time.

Check out the climate of Slovenia for all months and discover the best travel time

The climate in Slovenia is based on weather data from Ljubljana. Other places, like Bled, Bohinj or Piran, might have different weather. You can check out all destinations in Slovenia to get the full picture of the climate.

Temperature charts

These charts show the average temperatures in December in Slovenia. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.

Daily Temperature in December in Slovenia

Temperature in December in Slovenia over the years

Precipitation charts

These charts show the average amount of precipitation in December in Slovenia. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.

Daily Precipitation in December in Slovenia

Total precipitation in December in Slovenia over the years

Daily Snowfall in December in Slovenia

Snowfall in December in Slovenia per year

Daily UV index in December in Slovenia

This chart shows the average daily UV index in December in Slovenia, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.

Weather experiences in December in Slovenia

Have you been to Slovenia in December?

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Average weather in Slovenia by month

Click on a month below to see detailed weather info for Slovenia. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.