March in Osijek averages a daily high of 12.7°C with nights around 1.8°C. Expect roughly 9.5 wet days totalling 43.9mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Osijek is April–October.
Based on OSIJEK, HR (5.1km), 1995–2024. 29 years of March data.