September in Erfurt averages a daily high of 19.1°C with nights around 9.2°C. Expect roughly 10.5 wet days totalling 47.3mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Erfurt is June–September.
Based on ERFURT BINDERSLEBEN, GM (5.1km), 1995–2024. 30 years of September data.