In January, La Roche-sur-Yon typically sees daytime highs of 7.7°C and overnight lows around 1.6°C. Compared to the annual average high of 15.9°C, January runs -8.2°C.
January in La Roche-sur-Yon averages a daytime high of 7.7°C and an overnight low of 1.6°C.
January runs -8.2°C compared to La Roche-sur-Yon's annual average high of 15.9°C, ranking #12 of 12 months by warmth.
Plan for daytime highs near 7.7°C and cooler evenings around 1.6°C.