October in Longjiang averages a daily high of 12.2°C with nights around 0.8°C. Expect roughly 3.3 wet days totalling 14.4mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Longjiang is August–September.
Based on QIQIHAR, CH (54.6km), 1995–2024. 24 years of October data.