June in Omsk averages a daily high of 23.8°C with nights around 12.1°C. Expect roughly 11.7 wet days totalling 55.3mm. 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. 25 years of June data.