December in Nanchong averages a daily high of 10.7°C with nights around 5.8°C. Expect roughly 6.4 wet days totalling 15.4mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Nanchong is March–May.
Based on NANCHONG, CH (0.6km), 1995–2024. 26 years of December data.