March in Kostanay averages a daily high of -1.2°C with nights around -10.8°C. Expect roughly 6.6 wet days totalling 17.3mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Kostanay is May–September.
Based on KUSTANAI, KZ (0.6km), 1995–2024. 15 years of March data.