Weather in Ljubljana in September
In an average September, Ljubljana sees a daily high around 20°C and a low around 11°C, based on 1980–2026 of local climate records.
| Average high | 20°C |
|---|---|
| Typical high range | 15°C to 25°C |
| Average low | 11°C |
| Typical low range | 7°C to 15°C |
| Average daily precipitation | 5 mm |
September records
The most extreme September on record for each metric, across 1980–2026. For rainfall, the wettest and driest are by total September accumulation.
High
Highest
30°C
2024-09-01
Lowest
8°C
2013-09-30
Low
Highest
18°C
2015-09-17
Lowest
1°C
1995-09-30
Feels-like
Highest
35°C
2011-09-04
Lowest
-3°C
1995-09-30
Humidity
Highest
15.7 g/m³
1987-09-14
Lowest
5.3 g/m³
2007-09-05
Wind
Highest
26 km/h
2024-09-26
Lowest
3 km/h
1985-09-24
Gust
Highest
72 km/h
1993-09-14
Lowest
12 km/h
2004-09-28
Precip
Wettest
354 mm
2017
Driest
31 mm
2008
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