April in Longjiang averages a daily high of 14°C with nights around 0.9°C. Expect roughly 5.1 wet days totalling 22.1mm. 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. 25 years of April data.