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Weather in September in Slovenia

Are you planning a trip a to Slovenia in September and wondering what kind of weather to expect? This page has all the details you need.

What is the weather like in Slovenia in September?

September in Slovenia generally has temperatures that range from moderate to warm, with precipitation levels ranging from moderate to heavy.

Temperatures

During the day the temperature is moderate in Rateče at 18°C and warm in Krkavče at 24°C. As night falls, temperatures generally drop to 17°C in Krkavče and 9°C in Rateče.

Precipitation

In September, precipitation varies across different areas. From moderate rainfall in Šalovci with an average of 91 mm to heavy rainfall in Ilirska Bistrica with 200 mm. Based on climate data from the last 30 years, Ljubljana receives the most rainfall during this month of the year.

Average sunshine

Most cities enjoy a balanced amount of sunshine, with around 182 hours of sunlight anticipated in Ljubljana. This ensures the days are neither too dim nor excessively sunny.

To learn more about the conditions in specific areas of Slovenia in September, check out the map below. For more details on the yearly weather, visit our Slovenia climate page.

Where to go in Slovenia in September

Find more information for the most popular destinations in the Slovenia on the map below. Click on a destination dot for more detailes.

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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).

Popular destinations

What is the weather like in September for the 5 most popular destinations in Slovenia?

Ljubljana

In September Ljubljana generally has pleasant temperatures with maximum daytime temperatures around 21°C, minimum nighttime temperatures around 11°C and high monthly rainfall. So on average the conditions are pleasant that month.

Ljubljana
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
26°C 
15°C 
266 hours 
117 mm 
14 days 
21°C 
11°C 
182 hours 
132 mm 
13 days 
October   >> October
>>  
16°C 
7°C 
121 hours 
120 mm 
13 days 
Climate in Ljubljana

Bled

In September Bled generally has pleasant temperatures with maximum daytime temperatures around 19°C, minimum nighttime temperatures around 10°C and high monthly rainfall. So on average the conditions are tolerable that month.

Bled
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
24°C 
14°C 
241 hours 
154 mm 
15 days 
19°C 
10°C 
188 hours 
157 mm 
13 days 
October   >> October
>>  
14°C 
5°C 
129 hours 
143 mm 
12 days 
Climate in Bled

Portorož

In September Portorož generally has high temperatures with maximum daytime temperatures around 24°C, minimum nighttime temperatures around 18°C and high monthly rainfall. So on average the conditions are pleasant that month.

Portorož
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
28°C 
22°C 
299 hours 
84 mm 
11 days 
24°C 
18°C 
223 hours 
154 mm 
11 days 
October   >> October
>>  
19°C 
14°C 
166 hours 
164 mm 
11 days 
Climate in Portorož

Kranjska Gora

In September Kranjska Gora generally has pleasant temperatures with maximum daytime temperatures around 18°C, minimum nighttime temperatures around 9°C and heavy monthly rainfall. So on average the conditions are tolerable that month.

Kranjska Gora
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
23°C 
13°C 
204 hours 
179 mm 
16 days 
18°C 
9°C 
179 hours 
167 mm 
14 days 
October   >> October
>>  
13°C 
4°C 
154 hours 
159 mm 
12 days 
poor 
Climate in Kranjska Gora

Bohinj

In September Bohinj generally has pleasant temperatures with maximum daytime temperatures around 19°C, minimum nighttime temperatures around 10°C and heavy monthly rainfall. So on average the conditions are tolerable that month.

Bohinj
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
24°C 
14°C 
241 hours 
158 mm 
16 days 
19°C 
10°C 
188 hours 
176 mm 
14 days 
October   >> October
>>  
14°C 
5°C 
129 hours 
174 mm 
13 days 
Climate in Bohinj

Is your destination not in the list? Have a look at other destinations in Slovenia.

Is September the best time to visit Slovenia?

We believe that September is one of the best times to visit Slovenia with overall pleasant weather in Ljubljana. It's worth noting that weather conditions might differ depending on the location you visit.

On average, the best time to visit Slovenia is in May, June, July, August and September with generally pleasant weather in Ljubljana. The weather in January, February, November and December, on the other hand, tends to be poor.

Interested in more climate information?

We have much more information about the climate in Slovenia. Interested in the weather conditions in a specific month? Select the month below.

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  • 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.