July in Metz averages a daily high of 24.1°C with nights around 14.1°C. Expect roughly 11.6 wet days totalling 68mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Metz is June–September.
Based on BERUS, GM (40.8km), 1995–2024. 30 years of July data.