September in Saarbrücken averages a daily high of 21.5°C with nights around 10°C. Expect roughly 10.3 wet days totalling 62mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Saarbrücken is May–September.
Based on SAARBRUCKEN BURBACH, GM (5.5km), 1995–2024. 24 years of September data.