Ljubljana in Summer — Weather & What to Expect
Summer in Ljubljana (June, July, August) averages daytime highs of 26.8°C and lows of 15.1°C, with around 299.7mm of rain across the season (32 rainy days in total). It includes some of the best months of the year to visit (June, July, August).
In the northern hemisphere, summer in Ljubljana covers June, July, August.
Summer in Ljubljana month by month
| Month | High | Low | Rain | Rainy days | Rating |
|---|---|---|---|---|---|
| June | 25.9°C | 14.1°C | 78.0mm | 10 | 10/10 |
| July | 28.0°C | 15.8°C | 107.5mm | 11 | 9/10 |
| August | 26.6°C | 15.4°C | 114.2mm | 11 | 9/10 |
What to pack for Ljubljana in summer
- Light layers
- Sunscreen
- T-shirts and light trousers or shorts
- Light waterproof layer
- Compact travel umbrella
- Waterproof jacket
- Quick-dry clothing
Frequently Asked Questions
Is summer a good time to visit Ljubljana?
Summer in Ljubljana rates around 9/10 — excellent time to visit. Average highs are 26.8°C with 299.7mm of rain across the season.
How hot is Ljubljana in summer?
Daytime highs average 26.8°C (80.2°F) across June, July, August, with nights around 15.1°C.
What months are summer in Ljubljana?
Ljubljana is in the northern hemisphere, so summer covers June, July, August.
See also: best time to visit Ljubljana · Ljubljana annual climate · Ljubljana in spring · Ljubljana in autumn · Ljubljana in winter
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Once you know what summer in Ljubljana looks like, find out exactly what to pack for Ljubljana at 247PackingList. For currency, language and country facts, see the Slovenia guide at 247CountryInfo.
Summer in Ljubljana — what to pack
Thermal travel layers
Pack proper layers — winters are genuinely cold and evenings drop fast year-round.
Check Price →Check clothing sizes in Slovenia at 247Sizing before you shop.
More summer travel essentials
Last updated:
Climate data sourced from Open-Meteo (open source, open data licence). Monthly averages calculated from 2020–2023 historical data. Weather can be unpredictable — always check a live forecast before travelling.