January in Longtan averages a daily high of 7.7°C with nights around 1.4°C. Expect roughly 11 wet days totalling 34.8mm. Demanding conditions — pack for it and plan indoor options.
Across the year, the best time to visit Longtan is September.
Based on YOUYANG, CH (21km), 1995–2024. 26 years of January data.