September in Yoshkar-Ola averages a daily high of 16.6°C with nights around 7°C. Expect roughly 11.8 wet days totalling 51.1mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Yoshkar-Ola is May–August.
Based on JOSKAR OLA, RS (4.3km), 1995–2024. 30 years of September data.