September in Xincheng averages a daily high of 26.8°C with nights around 12.1°C. Expect roughly 3.1 wet days totalling 6.1mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Xincheng is April–May.
Based on KUQA, CH (1.5km), 1995–2024. 22 years of September data.