July in Gummersbach averages a daily high of 23.6°C with nights around 13°C. Expect roughly 14.5 wet days totalling 87.7mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Gummersbach is May–September.
Based on NEUNKIRCHEN SEELSCHEID KRAWINK, GM (24.2km), 1995–2024. 30 years of July data.