In October, Boulogne-Billancourt typically sees daytime highs of 15.3°C and overnight lows around 6.9°C. Compared to the annual average high of 14.7°C, October runs +0.6°C.
October in Boulogne-Billancourt averages a daytime high of 15.3°C and an overnight low of 6.9°C.
October runs +0.6°C compared to Boulogne-Billancourt's annual average high of 14.7°C, ranking #6 of 12 months by warmth.
Plan for daytime highs near 15.3°C and cooler evenings around 6.9°C.