Slovenia weather in September 2023

  • 21°C maximum daytime temperature in September in Slovenia (Ljubljana)21
    21°C max day temperature
  • 6 hours of sunshine per day
  • 12 days with some rainfall in September in Slovenia (Ljubljana)12
    12 days with some rainfall
  • 11°C minimum night-time temperature in September in Slovenia (Ljubljana)11
    11°C min night temperature
  • 13 hours of daylight per day in September in Slovenia (Ljubljana)13
    13 hours of daylight per day
  • No heat & humidity in September in Slovenia (Ljubljana)0
    No heat & humidity
  • 127 mm monthly rainfall in September in Slovenia (Ljubljana)127
    127 mm of monthly rainfall
  • UV (maximum) index 5 (Moderate) in September in Slovenia (Ljubljana)5
    5 (Moderate) UV index

Below are average maximum temperatures at popular destinations in Slovenia in September. Select a destination to see more weather parameters.

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Recommended for Slovenia

The September weather guide for Slovenia (Ljubljana) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

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Metric (°C / mm)  |  Imperial (°F / inches)

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More about Slovenia

How hot is it in Slovenia in September?

Daytime temperatures usually reach 21°C in Ljubljana, Slovenia in September, falling to 11°C at night.

How sunny is it in Slovenia in September?

There are normally 6 hours of bright sunshine each day in Ljubljana, Slovenia in September - that's 46% of daylight hours.

Does it rain in Slovenia in September?

There are usually 12 days with some rain in Ljubljana, Slovenia in September and the average monthly rainfall is 127mm.

Slovenia September sunrise & sunset times

Browse the sunrise and sunset times for Slovenia in September 2023. Select a month to view Slovenia sunrise and sunset times for the next 12 months. The Slovenia sunrise and sunset times shown below are for Ljubljana.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st September 2023 06:22 19:41
Friday, 15th September 2023 06:40 19:14
Saturday, 30th September 2023 06:58 18:45

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