July in Kostanay averages a daily high of 27.5°C with nights around 15°C. Expect roughly 8.5 wet days totalling 51.5mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Kostanay is May–September.
Based on KUSTANAI, KZ (0.6km), 1995–2024. 16 years of July data.