September in Runan averages a daily high of 27.5°C with nights around 17.8°C. Expect roughly 8 wet days totalling 85.5mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Runan is April–May.
Based on ZHUMADIAN, CH (30.7km), 1995–2024. 29 years of September data.