November in Boulogne-Billancourt averages a daily high of 11.8°C. Expect roughly 15.4 wet days totalling 45.3mm. Demanding conditions — pack for it and plan indoor options.
Across the year, the best time to visit Boulogne-Billancourt is May–September.
Based on PARIS MONTSOURIS, FR (7.2km), 1995–2024. 18 years of November data.