June in Trier averages a daily high of 23.5°C with nights around 11.9°C. Expect roughly 11.5 wet days totalling 61.7mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Trier is May–September.
Based on TRIER PETRISBERG, GM (1.6km), 1995–2024. 30 years of June data.