September in Wiesbaden averages a daily high of 19.9°C with nights around 10°C. Expect roughly 10.5 wet days totalling 57.9mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Wiesbaden is May–September.
Based on WIESBADEN AURINGEN, GM (7.4km), 1995–2024. 30 years of September data.