September in Rubtsovsk averages a daily high of 19.7°C with nights around 5.8°C. Expect roughly 7.3 wet days totalling 22.4mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Rubtsovsk is May–June.
Based on RUBCOVSK, RS (1.8km), 1995–2024. 30 years of September data.