Ljubljana weather in September (Osrednjeslovenska, Slovenia)

Planning a trip to Ljubljana in September? Wondering if it's the right time to visit? Browse this page for a comprehensive overview of the weather conditions for that month.

In September, Ljubljana generally has pleasant temperatures and high rainfall. Throughout the daytime, temperatures often hover around 21°C. However, as the sun sets and evening approaches, there's a noticeable cool-down, with temperatures gently dropping to a more temperate 11°C.

Ljubljana in September usually receives high rainfall, averaging around 132 mm for the month. It is the wettest month of the year, so an umbrella might come in handy. Delving into the climate records from the past 30 years, one can predict that nearly 13 days of the month will see rainfall.

The area experiences a moderate amount of sunshine, with approximately 182 hours of sunlight expected. This makes it neither too gloomy nor overly bright.

If you favor pleasant temperatures and minimal rainfall, September is one of the better months to visit Ljubljana. May, June, July, August and September typically offer the most agreeable circumstances. On the other hand, January, February, November and December tend to be characterized by conditions that may not be as optimal.

For an in-depth look at the yearly conditions, visit our specialized Ljubljana climate page with graphs.

 

Ljubljana, monthly averages in September

Min Temperature 11°C  

Max Temperature 21°C  

Chance of Rain 42%  

Precipitation 132 mm  

Rainy days 13 days  

Humidity 72%  

Windspeed 7 km/h  

Sunshine 182 hours  

Percentage Sunshine  

Where to go in Slovenia in September

Find out more about the weather in Slovenia in September and which places have the best weather conditions in this month.

Weather conditions Weather

Temperatures

Precipitation

Map not visible? Whoops sorry! Please refresh the page.

Legend perfect weather pleasant tolerable unpleasant poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in Ljubljana in September?

For visitors traveling to Ljubljana, we recommend wearing layers. So maybe a skirt, t-shirt, shorts for during the day and jeans and a warm jacket for some days and evenings. Bring a rain jacket in case it rains during your stay. Plan on layering your clothes.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do in September.

Swimming

6/10

Cycling

9/10

Walking

9/10

Camping

6/10

Outdoor sports

9/10

Interested in more climate information?

Weather and Climate provides you with all the information you need about the climate in Ljubljana.

Our site offers climate and forecast data for every country in the world. Are you going to Slovenia? On this website you can find 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 climate conditions. Find out where to go with our weather planner.