September in Košice averages a daily high of 21.1°C with nights around 10.2°C. Expect roughly 9.7 wet days totalling 55.3mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Košice is May–September.
Based on KOSICE, LO (6.1km), 1995–2024. 26 years of September data.