October in Osnovyanskyi averages a daily high of 12.3°C with nights around 4°C. Expect roughly 10.1 wet days totalling 47.2mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Osnovyanskyi is May–June.
Based on KHARKIV, UP (8.4km), 1995–2024. 14 years of October data.