When to go · Koper
Koper in December
Mixed month. Outside the best window (May–Jun, Sep–early Oct). Across Slovenia: Ljubljana's lights and markets; ski season opens.
Key facts
- Verdict
- Mixed
- Temperature
- 10°C50°F / 4°C39°F
- average high / low
- Rain days
- 9
- Crowds
- Medium
- Slovenia overall
- Prices
- Medium
- Slovenia overall
Verdict
MixedSlovenia month rating
Outside the best window (May–Jun, Sep–early Oct). Across Slovenia: Ljubljana's lights and markets; ski season opens.
Weather in December
- KoperHighs around 10 °C, lows around 4 °C, rain on about 9 daysHighs around 50 °F, lows around 39 °F, rain on about 9 days
- Karst and coast, Slovenia · Piran, Izola, Koper, Lipicacool
Mediterranean; the bora wind blasts the Karst in winter; sea swimming June–September.
Festivals and holidays
Dates as our data lists them. Moving holidays (lunar and Islamic calendars, Easter) shift every year: check the date for your year before you build a trip on it.
Christmas, Independence and Unity Day big impact
25–26 Dec · Slovenia
Shops closed; ski resorts busy.
Crowds and prices
- Crowds · Slovenia overall
- Medium
- Prices · Slovenia overall
- Medium
Slovenia overall: Ljubljana's lights and markets; ski season opens.
What to pack
- A warm coat, hat and gloves for mornings and evenings
- Layers: a fleece or light jacket