September in Cluj-Napoca averages a daily high of 21.6°C with nights around 9.8°C. Expect roughly 9.5 wet days totalling 58.3mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Cluj-Napoca is May–September.
Based on CLUJ NAPOCA, RO (3.1km), 1995–2024. 30 years of September data.