Slovenia

Slovenia Weather in September

Average temperatures, rainfall, sunshine and the best places to visit in Slovenia in September.

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Ljubljana Bled Portorož Kranjska Gora

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 to Expect in Slovenia in September

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

Temperatures

During the day the temperature is mild in Rateče at 18°C (64°F) and warm in Krkavče at 24°C (75°F). As night falls, temperatures generally drop to 17°C (63°F) in Krkavče and 9°C (48°F) in Rateče.

To explore the conditions in Slovenia in more detail, check the map below.

Precipitation

In September, precipitation varies across different areas. From moderate rainfall in Šalovci with an average of 91 mm (3.6 in) to heavy rainfall in Ilirska Bistrica with 200 mm (7.9 in). Based on climate data from the last 30 years, Ljubljana receives the most rainfall during this month of the year.

Average sunshine

Most areas see decent amounts of sunshine this month. Ljubljana gets around 182 hours of sunlight, providing a pleasant balance of sun and clouds. If you'd prefer more guaranteed sunshine, our weather planner can show you sunnier spots around the world.

Explore Slovenia by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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
perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Slovenia

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

Temperature range in Slovenia (September)

Precipitation variation in Slovenia (September)

Ljubljana

In September Ljubljana generally has pleasant temperatures with maximum daytime temperatures around 21°C (70°F), minimum nighttime temperatures around 11°C (52°F) and high monthly rainfall. So on average the conditions are pleasant that month.

« August
September
October »
August
September
October
Max temperature
26°C (79°F)
21°C (70°F)
16°C (61°F)
Min temperature
15°C (59°F)
11°C (52°F)
7°C (45°F)
Monthly sun hours
266 hours
182 hours
121 hours
Monthly rainfall
117 mm (4.6 in)
132 mm (5.2 in)
120 mm (4.7 in)
Monthly rainy days
14 days
13 days
13 days
Weather conditions
pleasant
pleasant
unpleasant
Climate in Ljubljana →

Bled

In September Bled generally has pleasant temperatures with maximum daytime temperatures around 19°C (66°F), minimum nighttime temperatures around 10°C (50°F) and high monthly rainfall. So on average the conditions are tolerable that month.

« August
September
October »
August
September
October
Max temperature
24°C (75°F)
19°C (66°F)
14°C (57°F)
Min temperature
14°C (57°F)
10°C (50°F)
5°C (41°F)
Monthly sun hours
241 hours
188 hours
129 hours
Monthly rainfall
154 mm (6.1 in)
157 mm (6.2 in)
143 mm (5.6 in)
Monthly rainy days
15 days
13 days
12 days
Weather conditions
pleasant
tolerable
unpleasant
Climate in Bled →

Portorož

In September Portorož generally has high temperatures with maximum daytime temperatures around 24°C (75°F), minimum nighttime temperatures around 18°C (64°F) and high monthly rainfall. So on average the conditions are pleasant that month.

« August
September
October »
August
September
October
Max temperature
28°C (82°F)
24°C (75°F)
19°C (66°F)
Min temperature
22°C (72°F)
18°C (64°F)
14°C (57°F)
Monthly sun hours
299 hours
223 hours
166 hours
Monthly rainfall
84 mm (3.3 in)
154 mm (6.1 in)
164 mm (6.5 in)
Monthly rainy days
11 days
11 days
11 days
Weather conditions
perfect
pleasant
tolerable
Climate in Portorož →

Kranjska Gora

In September Kranjska Gora generally has pleasant temperatures with maximum daytime temperatures around 18°C (64°F), minimum nighttime temperatures around 9°C (48°F) and heavy monthly rainfall. So on average the conditions are tolerable that month.

« August
September
October »
August
September
October
Max temperature
23°C (73°F)
18°C (64°F)
13°C (55°F)
Min temperature
13°C (55°F)
9°C (48°F)
4°C (39°F)
Monthly sun hours
204 hours
179 hours
154 hours
Monthly rainfall
179 mm (7 in)
167 mm (6.6 in)
159 mm (6.3 in)
Monthly rainy days
16 days
14 days
12 days
Weather conditions
pleasant
tolerable
poor
Climate in Kranjska Gora →

Bohinj

In September Bohinj generally has pleasant temperatures with maximum daytime temperatures around 19°C (66°F), minimum nighttime temperatures around 10°C (50°F) and heavy monthly rainfall. So on average the conditions are tolerable that month.

« August
September
October »
August
September
October
Max temperature
24°C (75°F)
19°C (66°F)
14°C (57°F)
Min temperature
14°C (57°F)
10°C (50°F)
5°C (41°F)
Monthly sun hours
241 hours
188 hours
129 hours
Monthly rainfall
158 mm (6.2 in)
176 mm (6.9 in)
174 mm (6.9 in)
Monthly rainy days
16 days
14 days
13 days
Weather conditions
pleasant
tolerable
unpleasant
Climate in Bohinj →

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

Popular cities in September

Day & night temperatures, rainfall and average weather in Slovenia in September.

City Weather Day temp Night temp Rainfall
Ljubljana 21°C (70°F) 11°C (52°F) 132 mm (5.2 in)
Bled 19°C (66°F) 10°C (50°F) 157 mm (6.2 in)
Portorož 24°C (75°F) 18°C (64°F) 154 mm (6.1 in)
Kranjska Gora 18°C (64°F) 9°C (48°F) 167 mm (6.6 in)
Moravske-Toplice 22°C (72°F) 12°C (54°F) 95 mm (3.7 in)
Koper 24°C (75°F) 16°C (61°F) 159 mm (6.3 in)

Slovenia weather in September: frequently asked questions

What is the weather like in Slovenia in September?

Expect pleasant weather across Slovenia in September. The popular destination of Ljubljana averages 21°C (70°F) by day and 11°C (52°F) at night during this month.

What is the average temperature in Slovenia in September?

Daytime temperatures in Ljubljana peak at roughly 21°C (70°F) in September, dropping to about 11°C (52°F) overnight.

Does Slovenia get a lot of rain in September?

Slovenia sees substantial rainfall in September. Ljubljana typically averages about 132 mm (5.2 in), a mix of wet and dry days, but bring an umbrella.

Is September a Good 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.

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.

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