Ljubljana Weather in September
Slovenia · 30-year monthly averages
👍 Good time to visit
September in Ljubljana is pleasantly warm, with average daytime highs around 22°C (71°F) and nighttime lows near 12°C (53°F). Expect roughly 160mm of precipitation spread over about 9 rainy days, and this is one of the wetter months.
Avg high
22°C
71°F
Avg low
12°C
53°F
Rainfall
160mm
rainy
Rainy days
9
days with ≥1mm
☀️ About 171 hours of sunshine over the month (~6h/day).
🎒 What to pack
- light layers
- comfortable walking shoes
- compact umbrella or rain jacket
September vs the rest of the year
FAQ
- How hot is Ljubljana in September?
- September in Ljubljana is pleasantly warm, with average daytime highs around 22°C (71°F) and nighttime lows near 12°C (53°F). Expect roughly 160mm of precipitation spread over about 9 rainy days, and this is one of the wetter months.
- Does it rain a lot in Ljubljana in September?
- Ljubljana sees around 160mm of precipitation in September on average — rainy by global standards.
- Is September a good time to visit Ljubljana?
- September is a good month to visit Ljubljana, with generally agreeable conditions.