Weather in Ljubljana in August
August in Ljubljana is warm outdoor weather. Days are long enough to be useful. Shade starts to matter at midday.
In Slovenia, this is how Ljubljana actually wears August, not how a country centroid would. August is the peak of the warm side of the year in Ljubljana. If you wanted the gentlest heat, this is not that month.

- Average temp
- 22°C
16–28°C
- Rainfall
- 124 mm
Showers likely
- Sunshine
- 8.3 h
hours per day
What to expect
Daytime
Warm days in Ljubljana in August. A hat starts to earn its keep at midday. Evenings are the comfortable part of the clock.
You can walk at more hours than in the fierce months. Still build in a pause when the sun is high. Nights are easy.
Rain
Mixed skies in Ljubljana in August. Dry days and wet days share the month. Outdoor plans need a backup, not a cancellation policy.
Pack a shell you will actually carry. The monthly table is the place for totals. This is the feel: usable, interrupted.
Evening
Evenings are cooler. A layer helps after sunset.
What to pack
Sun protection
Rain jacket
A layer for cooler evenings
Where to stay in Ljubljana
Dates are a starting point for August.

Travel guides for Ljubljana
What to read before you book.
Average weather in Ljubljana
TemperatureRainfall
Similar weather in August
Other destinations whose August averages sit close to this one.
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FAQs about Ljubljana
Climate averages for Ljubljana, 1991–2020.
The best time to visit Ljubljana is between April and September, the most comfortable stretch of the year on these averages.
July is the hottest month, with an average around 22°C.
September is the wettest month, with about 159 mm of rain.
No. These are 1991–2020 climate normals from Meteostat, not a live forecast. Actual weather in any given week can differ.

