June in Deventer averages a daily high of 21.4°C with nights around 10.4°C. Expect roughly 11.8 wet days totalling 67.2mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Deventer is May–September.
Based on HEINO, NL (20.9km), 1995–2024. 30 years of June data.