December in Jiang’an averages a daily high of 11.9°C with nights around 7.3°C. Expect roughly 10 wet days totalling 21.4mm. Demanding conditions — pack for it and plan indoor options.
Across the year, the best time to visit Jiang’an is March–May.
Based on YIBIN, CH (46.2km), 1995–2024. 26 years of December data.