Notranjska Weather in September

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

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Postojna Cerknica Ilirska Bistrica Pivka

Considering a trip to Notranjska, Slovenia this September and wondering about the expected weather conditions? Find all the crucial information you need right here, addressing your question:

What to Expect in Notranjska in September

Notranjska, Slovenia is a region in Slovenia. September in Notranjska generally has pleasant temperatures, with precipitation levels ranging from high to heavy.

Temperatures

You can expect pleasant maximum daytime temperatures of around 21°C (70°F) and nighttime temperatures around 11°C (52°F) in Postojna.

To learn more about the conditions in specific areas of Notranjska, Slovenia, check out the map below.

Precipitation

In September, precipitation varies across different areas. From high rainfall in Nova Vas with an average of 157 mm (6.2 in) to heavy rainfall in Ilirska Bistrica with 200 mm (7.9 in). It experiences its highest rainfall in this month of the year. Come prepared by bringing an umbrella.

Average sunshine

September brings good sunshine to many areas. Postojna sees around 211 hours of sunlight, great for visitors looking for bright days.

Explore Notranjska by month

Pick a month to see the average temperature, rainfall and sunshine in Notranjska — and find the best time to visit. (based on Postojna)

January5°C (41°F) February6°C (43°F) March11°C (52°F) April15°C (59°F) May20°C (68°F) This monthJune24°C (75°F) July26°C (79°F) August26°C (79°F) September21°C (70°F) October15°C (59°F) November10°C (50°F) December5°C (41°F)
Best Time to Visit Notranjska →

Best Places to Visit in Notranjska in September

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

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 Notranjska

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

Temperature range in Notranjska (September)

Precipitation variation in Notranjska (September)

Postojna

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

« August
September
October »
August
September
October
Max temperature
26°C (79°F)
21°C (70°F)
15°C (59°F)
Min temperature
15°C (59°F)
11°C (52°F)
7°C (45°F)
Monthly sun hours
260 hours
211 hours
167 hours
Monthly rainfall
144 mm (5.7 in)
181 mm (7.1 in)
173 mm (6.8 in)
Monthly rainy days
14 days
13 days
13 days
Weather conditions
pleasant
tolerable
unpleasant
Climate in Postojna →

Cerknica

In September Cerknica generally has pleasant temperatures with maximum daytime temperatures around 20°C (68°F), minimum nighttime temperatures around 11°C (52°F) and heavy monthly rainfall. So on average the conditions are pleasant that month.

« August
September
October »
August
September
October
Max temperature
26°C (79°F)
20°C (68°F)
15°C (59°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
139 mm (5.5 in)
168 mm (6.6 in)
159 mm (6.3 in)
Monthly rainy days
14 days
13 days
13 days
Weather conditions
pleasant
pleasant
unpleasant
Climate in Cerknica →

Ilirska Bistrica

In September Ilirska Bistrica generally has pleasant temperatures with maximum daytime temperatures around 21°C (70°F), minimum nighttime temperatures around 12°C (54°F) and heavy monthly rainfall. So on average the conditions are unpleasant that month.

« August
September
October »
August
September
October
Max temperature
26°C (79°F)
21°C (70°F)
16°C (61°F)
Min temperature
16°C (61°F)
12°C (54°F)
7°C (45°F)
Monthly sun hours
281 hours
202 hours
163 hours
Monthly rainfall
141 mm (5.6 in)
200 mm (7.9 in)
209 mm (8.2 in)
Monthly rainy days
14 days
13 days
13 days
Weather conditions
pleasant
unpleasant
poor
Climate in Ilirska Bistrica →

Pivka

In September Pivka generally has pleasant temperatures with maximum daytime temperatures around 21°C (70°F), minimum nighttime temperatures around 11°C (52°F) and heavy monthly rainfall. So on average the conditions are tolerable 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
260 hours
211 hours
167 hours
Monthly rainfall
141 mm (5.6 in)
186 mm (7.3 in)
185 mm (7.3 in)
Monthly rainy days
14 days
13 days
13 days
Weather conditions
pleasant
tolerable
poor
Climate in Pivka →

Grahovo

In September Grahovo generally has pleasant temperatures with maximum daytime temperatures around 20°C (68°F), minimum nighttime temperatures around 11°C (52°F) and heavy monthly rainfall. So on average the conditions are pleasant that month.

« August
September
October »
August
September
October
Max temperature
26°C (79°F)
20°C (68°F)
15°C (59°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
136 mm (5.4 in)
164 mm (6.5 in)
156 mm (6.1 in)
Monthly rainy days
14 days
13 days
13 days
Weather conditions
pleasant
pleasant
unpleasant
Climate in Grahovo →

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

Popular cities in September

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

City Weather Day temp Night temp Rainfall
Postojna 21°C (70°F) 11°C (52°F) 181 mm (7.1 in)
Cerknica 20°C (68°F) 11°C (52°F) 168 mm (6.6 in)
Ilirska Bistrica 21°C (70°F) 12°C (54°F) 200 mm (7.9 in)
Pivka 21°C (70°F) 11°C (52°F) 186 mm (7.3 in)
Grahovo 20°C (68°F) 11°C (52°F) 164 mm (6.5 in)
Markovec 20°C (68°F) 11°C (52°F) 162 mm (6.4 in)

Notranjska weather in September: frequently asked questions

What is the weather like in Notranjska, Slovenia in September?

In September, Notranjska, Slovenia generally has tolerable weather conditions. Postojna sees daytime temperatures near 21°C (70°F), with nights cooling to roughly 11°C (52°F).

What is the average temperature in Notranjska, Slovenia in September?

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

Does Notranjska, Slovenia get a lot of rain in September?

Rainfall in Notranjska, Slovenia peaks during September. Postojna averages roughly 181 mm (7.1 in), so frequent and sometimes heavy showers are the norm.

Is September a Good Time to Visit Notranjska, Slovenia?

Given the typically tolerable weather conditions in Postojna, September might be a good time to visit Notranjska, Slovenia. It's worth noting that weather conditions might differ depending on the location you visit.

Generally speaking, May, June, July and August provide pleasant weather in Postojna. On the other hand, the months of January, February, March, November and December tend to have poor weather conditions.

Interested in more climate information?

We have much more information about the climate in Notranjska.

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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