June in Lanzhou averages a daily high of 25.5°C with nights around 10.4°C. Expect roughly 8.8 wet days totalling 38.7mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Lanzhou is April–September.
Based on YU ZHONG, CH (35km), 1995–2024. 14 years of June data.