August in Osijek averages a daily high of 28.8°C with nights around 15.7°C. Expect roughly 7.8 wet days totalling 67.1mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Osijek is April–October.
Based on OSIJEK, HR (5.1km), 1995–2024. 29 years of August data.