With a population of around 25,800, Koper sits in Urban Municipality of Koper, Slovenia. The city operates in the Europe/Ljubljana time zone.
In 2025, Koper averaged an annual temperature of 59°F, with hottest temperatures reaching 99°F in August and lowest around 29°F in February. The city received approximately 64 inches of precipitation during the year.
View historical weather for Koper · More cities in Urban Municipality of Koper