May in Tartu averages a daily high of 17.2°C with nights around 5.9°C. Expect roughly 10.8 wet days totalling 52.8mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Tartu is May–August.
Based on TARTU TORAVERE, EN (20.1km), 1995–2024. 30 years of May data.