July in Ljubljana averages a daily high of 28.2°C with nights around 16.3°C. Expect roughly 11.2 wet days totalling 129.9mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Ljubljana is May–September.
Based on LJUBLJANA BEZIGRAD, SI (1.9km), 1995–2024. 30 years of July data.