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Draft data. Times, fares and step counts are desk estimates awaiting field checks. Unknown times stay unknown. How we verify

When to go · Piran

Piran in December

Avoid month. Listed as a month to avoid: Jul–Aug midday heat and crowds; Nov–Mar, when many seafront places close.

Key facts

Verdict
Avoid
Temperature
10°C / 4°C
average high / low
Rain days
9
Crowds
Medium
Slovenia overall
Prices
Medium
Slovenia overall

Verdict

AvoidBest and avoid months for Piran

Listed as a month to avoid: Jul–Aug midday heat and crowds; Nov–Mar, when many seafront places close.

Weather in December

Long-term averages
  • PiranHighs around 10 °C, lows around 4 °C, 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

Build the full packing list for your trip →

Across Slovenia in December →