May in Košice averages a daily high of 21.3°C with nights around 9.7°C. Expect roughly 11.9 wet days totalling 70.1mm. 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. 27 years of May data.