In December, La Roche-sur-Yon typically sees daytime highs of 8.7°C and overnight lows around 2.8°C. Compared to the annual average high of 15.9°C, December runs -7.3°C.
December in La Roche-sur-Yon averages a daytime high of 8.7°C and an overnight low of 2.8°C.
December runs -7.3°C compared to La Roche-sur-Yon's annual average high of 15.9°C, ranking #11 of 12 months by warmth.
Plan for daytime highs near 8.7°C and cooler evenings around 2.8°C.