April in Banja Luka averages a daily high of 19.3°C with nights around 6.5°C. Expect roughly 11.3 wet days totalling 74.1mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Banja Luka is April–June.
Based on BANJA LUKA, BK (1km), 1995–2024. 12 years of April data.