October in Heihe averages a daily high of 9.3°C with nights around -1.2°C. Expect roughly 6.4 wet days totalling 25.7mm. Demanding conditions — pack for it and plan indoor options.
Across the year, the best time to visit Heihe is May–June.
Based on BLAGOVESCENSK, RS (1km), 1995–2024. 30 years of October data.