June in Barcelona averages a daily high of 25.9°C with nights around 18.5°C. Expect roughly 3.8 wet days totalling 23.7mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Barcelona is May–July.
Based on BARCELONA AEROPUERTO, SP (13km), 1995–2024. 30 years of June data.