May in Freiburg averages a daily high of 20.8°C with nights around 9.5°C. Expect roughly 14.5 wet days totalling 103.7mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Freiburg is May–September.
Based on FREIBURG, GM (3.4km), 1995–2024. 30 years of May data.