May in Mostar averages a daily high of 25.7°C with nights around 13.6°C. Expect roughly 11.4 wet days totalling 96.8mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Mostar is April–May.
Based on MOSTAR, BK (1km), 1995–2024. 17 years of May data.