June in Nantes averages a daily high of 23.4°C with nights around 12.9°C. Expect roughly 9.8 wet days totalling 49.7mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Nantes is May–September.
Based on NANTES BOUGUENAIS, FR (8.6km), 1995–2024. 30 years of June data.