December in Yoshkar-Ola averages a daily high of -5.7°C with nights around -11.3°C. Expect roughly 18.8 wet days totalling 46.2mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Yoshkar-Ola is May–August.
Based on JOSKAR OLA, RS (4.3km), 1995–2024. 24 years of December data.