March in Zemun averages a daily high of 13.2°C with nights around 4°C. Expect roughly 10 wet days totalling 46.5mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Zemun is May–June.
Based on BELGRADE OBSERVATORY, RI (7.3km), 1995–2024. 28 years of March data.