Temperature in Slovenia in September

Daytime highs, nighttime lows and the warmest cities across Slovenia this September.

Slovenia, experiences maximum daytime temperatures in September ranging from 18°C (64°F) in Rateče to 24°C (75°F) in Krkavče. Nighttime temperatures generally drop to 17°C (63°F) in Krkavče and 9°C (48°F) in Rateče.

What is the temperature of the different cities in Slovenia in September?

Curious about the September temperatures in the prime spots of Slovenia? Navigate the map below and tap on a destination dot for more detailed stats.

Select a Month

Check the conditions for any month of the year.

For a detailed overview over the year and the best time to visit Slovenia, check out our Slovenia's climate page.

See also: the Slovenia weather by month.

Best Places to Visit in Slovenia in September

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Slovenia.

Conditions Temperatures Precipitation
Avg daytime high -5°C (23°F) cold → 32°C (90°F) hot

Marker color shows the average daytime high temperature in September: blue is cold, red is hot.

Slovenia temperatures in September: frequently asked questions

How hot does it get in Slovenia in September?

Daytime temperatures in Ljubljana typically peak at 21°C (70°F) in September, putting it in the pleasant range.

How cold does it get at night in Slovenia in September?

Ljubljana sees nighttime lows close to 11°C (52°F) in September.

What is the warmest city in September in Slovenia?

Krkavče tops the warmest city list in our database with average maximum daytime temperatures around 24°C (75°F) and a minimum nighttime temperature of around 17°C (63°F).

What is the coldest city in September in Slovenia?

The coldest city in September in Slovenia is Rateče when we check our database. The maximum daytime temperatures are around 18°C (64°F) and minimum nighttime temperatures fall around 9°C (48°F).

How much sun does Slovenia get in September?

Ljubljana usually sees around 182 hours of sunlight, indicating a moderately sunny period.

Interested in more climate information?

We have much more information about the climate in Slovenia.

Weather and climate has detailed information for every country in the world. Are you going to Slovenia? Get detailed historical weather averages for many cities in Slovenia.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.