May in Hulan averages a daily high of 21.8°C with nights around 9.4°C. Expect roughly 9.7 wet days totalling 50.3mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Hulan is August–September.
Based on HARBIN, CH (21.6km), 1995–2024. 24 years of May data.