October in Blois averages a daily high of 17.6°C with nights around 9.4°C. Expect roughly 13.3 wet days totalling 68.3mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Blois is May–September.
Based on TOURS, FR (48.2km), 1995–2024. 30 years of October data.