Slovenia weather in May 2025

Expect 20°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Slovenia in May. Check more long-term weather averages for Slovenia in May before you book your next holiday to Slovenia in 2025/2026.

  • 20°C maximum daytime temperature in May in Slovenia (Ljubljana)20
    20°C max day temperature
  • 7 hours of sunshine per day
  • 16 days with some rainfall in May in Slovenia (Ljubljana)16
    16 days with some rainfall
  • 9°C minimum night-time temperature in May in Slovenia (Ljubljana)9
    9°C min night temperature
  • 15 hours of daylight per day in May in Slovenia (Ljubljana)15
    15 hours of daylight per day
  • No heat & humidity in May in Slovenia (Ljubljana)0
    No heat & humidity
  • 116 mm monthly rainfall in May in Slovenia (Ljubljana)116
    116 mm of monthly rainfall
  • UV (maximum) index 7 (High) in May in Slovenia (Ljubljana)7
    7 (High) UV index

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The May 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.

Top Slovenia destinations

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

All Slovenia destinations

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

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More about Slovenia

How hot is it in Slovenia in May?

Daytime temperatures usually reach 20°C in Ljubljana, Slovenia in May, falling to 9°C at night.

How sunny is it in Slovenia in May?

There are normally 7 hours of bright sunshine each day in Ljubljana, Slovenia in May - that's 47% of daylight hours.

Does it rain in Slovenia in May?

There are usually 16 days with some rain in Ljubljana, Slovenia in May and the average monthly rainfall is 116mm.

Slovenia May sunrise & sunset times

Browse the sunrise and sunset times for Slovenia in May 2025. 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
Thursday, 1st May 2025 04:49 19:10
Friday, 16th May 2025 04:28 19:29
Saturday, 31st May 2025 04:15 19:45

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