July in Omsk averages a daily high of 24.9°C with nights around 13.9°C. Expect roughly 12.5 wet days totalling 64.9mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Omsk is May–September.
Based on OMSK, RS (2.9km), 1995–2024. 24 years of July data.