September in Offenburg averages a daily high of 21.9°C with nights around 10.9°C. Expect roughly 10.7 wet days totalling 67.4mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Offenburg is June–September.
Based on OHLSBACH, GM (5.7km), 1995–2024. 27 years of September data.