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Koper

Koper is a city full of energy and natural beauty, suitable for all types of travellers. Its museums and historic sites are must-visit attractions, as well as its diverse outdoor activities and accessible facilities. Summer and autumn are the best times to travel, when you can participate in various exciting festivals and enjoy the gorgeous natural scenery.

Koper Top 10 Activities

Olive Oil Tasting: A Journey of Flavors and Aromas|Slovenia

Olive Oil Tasting: A Journey of Flavors and Aromas|Slovenia

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From Koper: Day Trip to Lake Bled & Ljubljana|Slovenia

From Koper: Day Trip to Lake Bled & Ljubljana|Slovenia

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From Koper: Bled & Ljubljana Cruise Trip with Guide|Slovenia

From Koper: Bled & Ljubljana Cruise Trip with Guide|Slovenia

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Sip & Step: A Flavorful Walk Through Koper's History|Slovenia

Sip & Step: A Flavorful Walk Through Koper's History|Slovenia

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From Koper: Half-Day Villages and Traditions Tour|Slovenia

From Koper: Half-Day Villages and Traditions Tour|Slovenia

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From Koper: Ljubljana Castle & Hidden Gems Tour|Slovenia

From Koper: Ljubljana Castle & Hidden Gems Tour|Slovenia

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From Koper: Postojna Cave and Predjama Castle Tour|Slovenia

From Koper: Postojna Cave and Predjama Castle Tour|Slovenia

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From Koper: Private Slovenian Coast Shore Excursion to Piran|Slovenia

From Koper: Private Slovenian Coast Shore Excursion to Piran|Slovenia

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Koper: Old Town Stroll with Burek & Ice Cream Tastings|Slovenia

Koper: Old Town Stroll with Burek & Ice Cream Tastings|Slovenia

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Gažon in Istria: Truffle Hunting-Cooking-Tasting Tour|Slovenia

Gažon in Istria: Truffle Hunting-Cooking-Tasting Tour|Slovenia

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Top things to do in Koper

Tours & Experiences

Tours & Experiences

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Olive Oil Tasting: A Journey of Flavors and Aromas|Slovenia

Olive Oil Tasting: A Journey of Flavors and Aromas|Slovenia

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221
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From Koper: Day Trip to Lake Bled & Ljubljana|Slovenia

From Koper: Day Trip to Lake Bled & Ljubljana|Slovenia

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From Koper: Bled & Ljubljana Cruise Trip with Guide|Slovenia

From Koper: Bled & Ljubljana Cruise Trip with Guide|Slovenia

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Sip & Step: A Flavorful Walk Through Koper's History|Slovenia

Sip & Step: A Flavorful Walk Through Koper's History|Slovenia

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Popular Activities in Koper

Cultural Heritage

4 activities

Private Group

2 activities

Foodie Tour

1 activities

Best time to visit Koper

Data source: Meteostat・Last updated: 2025-09

Weather in Koper throughout the year

Spring (March–May): Average 10.9–19.3°C, mild climate, sunny, moderate rainfall. Suitable for outdoor activities such as hiking and exploring the coastal area. Recommended clothing: light jacket, long-sleeved shirt, and comfortable shoes.

Summer (June–August): Average 23.6–26.9°C, hot and dry, occasional showers. Suitable for swimming, sunbathing, and water sports. Recommended clothing: light and breathable clothing, sun hat, and sunscreen.

Autumn (September–November): Average 11.9–21.4°C, pleasant climate, but more rainfall, especially in September. Suitable for sightseeing, tasting local food and wine. Recommended clothing: comfortable long-sleeved shirts, jackets, and rain gear.

Winter (December–February): Average 7.1–8.7°C, cold and humid climate, occasional rainfall. Suitable for indoor activities such as visiting museums and art galleries. Recommended clothing: warm jacket, scarf, gloves, and hat.

Weather in Koper

Annual average temperature: approx. 16°C / Annual rainfall: approx. 1138 mm / Summer humidity: 65%–75% / Rainiest month: September

Koper weather by month

MonthJanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember
Temperature7.1°C8.3°C10.9°C13.5°C19.3°C23.6°C26.9°C25.9°C21.4°C18.2°C11.9°C8.7°C
Rainfall (mm)62.730.760.350838168.5152218.5118.578135.5

7-day weather forecast for Koper

Date11/6Friday11/7Saturday11/8Sunday11/9Monday11/10Tuesday11/11Wednesday11/12Thursday
WeatherSunnyOvercastPartly CloudyPartly CloudyPatchy rain nearbyPatchy rain nearbyLight drizzle
High14.9°C10.6°C13.9°C13.8°C11.8°C14.1°C14.9°C
Low3.5°C4.6°C2.7°C4.6°C6.5°C9.9°C12.5°C

Koper travel FAQs and useful info

Is Koper a good holiday destination?

Koper is a captivating holiday destination, often called the city of a thousand suns. It glows with a rich cultural heritage, evident even in its inland areas. Koper's commitment to cultural tourism earned it the prestigious title of European Destination of Excellence (EDEN).

Is Koper, Slovenia walkable from the cruise port?

Yes, Koper is very walkable from the cruise port. Cruise ships typically dock within easy walking distance of the major sights and highlights of Koper, making it convenient to explore the city on foot.

What is the best time to visit Koper?

Autumn is an excellent time to visit Koper. Temperatures are pleasantly comfortable, ranging between 20°C and 25°C, often remaining warm enough for swimming in the sea right through October.

Is Koper safe for solo travelers?

Koper is generally very safe for solo travelers. Slovenia consistently ranks high on global peace indices and has a low crime rate. While exercising caution in crowded areas is always advisable, Koper offers a secure environment for independent travel.

What are some key attractions in Koper?

Koper boasts a wealth of attractions, including the historic Praetorian Palace, the Venetian House, and the beautiful Church of St. Nazarius with its iconic bell tower offering panoramic views. The charming old town itself is a major attraction, perfect for leisurely exploration.