August in Helong averages a daily high of 27.4°C with nights around 17.3°C. Expect roughly 12.9 wet days totalling 112.1mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Helong is May.
Based on YANJI, CH (54.9km), 1995–2024. 24 years of August data.