February in Kostroma averages a daily high of -4.9°C with nights around -11.4°C. Expect roughly 13.5 wet days totalling 29.4mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Kostroma is May–August.
Based on KOSTROMA, RS (5.9km), 1995–2024. 25 years of February data.