September in Tai’an averages a daily high of 27°C with nights around 17.6°C. Expect roughly 6.8 wet days totalling 72.4mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Tai’an is April–May.
Based on JINAN, CH (46.5km), 1995–2024. 22 years of September data.