March in Kotlas averages a daily high of -0.1°C with nights around -9.3°C. Expect roughly 13.1 wet days totalling 29.7mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Kotlas is June–August.
Based on KOTLAS, RS (4.3km), 1995–2024. 27 years of March data.