July in Graz averages a daily high of 26.9°C with nights around 15.7°C. Expect roughly 13 wet days totalling 124.9mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Graz is April–September.
Based on GRAZ, AU (1.9km), 1995–2024. 27 years of July data.