Weather in Slovenia in September

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15° C



65 mm

per month


52 %



84 %


What’s the weather like in Slovenia in September?
September marks the transition from summer to autumn in Slovenia. The weather during this month is generally mild, with temperatures gradually dropping as the month progresses. While the days are still relatively warm, the evenings and nights become cooler. It is advisable to pack layers and sweaters for the cooler evenings.

Average daily temperatures
In September, the average daily temperatures in Slovenia range from around 12°C (54°F) to 23°C (73°F). The coastal regions usually experience slightly higher temperatures compared to the inland areas. Ljubljana, the capital city, has average temperatures ranging from 13°C (55°F) to 23°C (73°F), making it a pleasant time to explore the city and its surroundings. The Alpine region, including Bled and Kranjska Gora, tends to be cooler with temperatures ranging from 10°C (50°F) to 19°C (66°F). Overall, the temperature variation in Slovenia during September offers comfortable conditions for outdoor activities.

Sunshine and rainfall
September in Slovenia enjoys a fair amount of sunshine, with an average of 7 hours of sunshine per day. This provides ample opportunity to explore Slovenia’s natural beauty, such as its lakes, mountains, and picturesque landscapes. However, it is worth noting that there may also be occasional cloudy days.

In terms of rainfall, September is a relatively dry month in Slovenia. The country experiences an average of 6 rainy days during the month, with an average precipitation of 100mm. However, the rainfall may vary across different regions of Slovenia. The coastal areas and the Julian Alps may receive slightly more rainfall compared to other regions. It is always a good idea to carry an umbrella or a light raincoat to stay prepared for unexpected showers.

Overall, September provides pleasant weather conditions in Slovenia, with comfortable temperatures and a fair amount of sunshine. It is a great time to explore the country’s natural wonders and enjoy outdoor activities.

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