October in Nantes averages a daily high of 18.2°C with nights around 9.8°C. Expect roughly 14.7 wet days totalling 92.9mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Nantes is May–September.
Based on NANTES BOUGUENAIS, FR (8.6km), 1995–2024. 30 years of October data.