July in Zagreb averages a daily high of 28.9°C with nights around 18.6°C. Expect roughly 10.1 wet days totalling 87.9mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Zagreb is April–October.
Based on ZAGREB GRIC, HR (0.3km), 1995–2024. 28 years of July data.