Ljubljana Weather in September
In September, Ljubljana averages a high of 21°C (69°F) and a low of 11°C (51°F), based on 54 years of historical weather data from LJUBLJANA BEZIGRAD.
21°C
Average high
69°F
11°C
Average low
51°F
33°C
Record high
92°F · 2011
-4°C
Record low
25°F · 1971
What to Expect in Ljubljana in September
Typical September days in Ljubljana reach 21°C (69°F) during the afternoon and cool to around 11°C (51°F) overnight. On average, measurable rain falls on about 39% of days this month. Over the past 54 years, September temperatures in Ljubljana have ranged from a record high of 33°C (2011) down to a record low of -4°C (1971).
For a day-by-day look or other months, see the full Ljubljana weather history.