December in Menglang averages a daily high of 23.6°C with nights around 9.8°C. Expect roughly 3.2 wet days totalling 17.6mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Menglang is November–February.
Based on LANCANG, CH (2.4km), 1995–2024. 30 years of December data.