July in Lahr averages a daily high of 26.2°C with nights around 14.4°C. Expect roughly 12.5 wet days totalling 89.1mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Lahr is May–September.
Based on LAHR, GM (4.1km), 1995–2024. 30 years of July data.