Koper weather in December (Slovenia)

Is Koper a good destination in December, weather-wise? Curious if the timing is right for your trip? Our page offers an in-depth look at the monthly weather conditions.

Temperatures

Typically, December in Koper includes low temperatures and high rainfall. During December, you’ll experience the winter season. Expect the temperatures during the day to hover around 10°C. At night, they will likely drop to about 4°C.

Precipitation

Koper in December usually receives high rainfall, averaging around 120 mm for the month. Analyzing past climate data, one can expect approximately 12 days of rain.

Average sunshine

The month is characterized by fewer sunny days, with roughly 95 hours hours of sunshine. Ideal for those who prefer a cooler, cloudier climate.

If you're looking for dry conditions and comfortable temperatures, December may not be the ideal month to visit Koper. June, July and August typically offer the most agreeable circumstances. On the other hand, January, February and December tend to be characterized by conditions that may not be as optimal.

For an in-depth look at the yearly conditions, visit our specialized Koper climate page with graphs.

 

Koper, monthly averages in December

Min Temperature 4°C  

Max Temperature 10°C  

Chance of Rain 40%  

Precipitation 120 mm  

Rainy days 12 days  

Humidity 67% *  

Sunshine 95 hours *  

Percentage Sunshine *  

Data from: Portorož, Slovenia (11 KM, 7 Miles).

Where to go in Slovenia in December

Find out more about the weather in Slovenia and which places have the best travel conditions in this month.

Weather conditions Weather

Temperatures

Precipitation

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Legend perfect weather pleasant tolerable unpleasant poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in this month?

Wear a base layer in cold weather; this is the #1 thing you can do to increase your overall body temperature.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

4/10

Cycling

4/10

Walking

4/10

Camping

3/10

Outdoor sports

4/10

Interested in more climate information?

This site provides you with all the information you need about the climate in Koper.

Our site offers climate and forecast data for every country in the world. Are you going to Slovenia? On this website you can find historical weather averages for many cities in Slovenia. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.