In December, Saint-Nazaire typically sees daytime highs of 9.1°C and overnight lows around 3.3°C. Compared to the annual average high of 15.7°C, December runs -6.6°C.
December in Saint-Nazaire averages a daytime high of 9.1°C and an overnight low of 3.3°C.
December runs -6.6°C compared to Saint-Nazaire's annual average high of 15.7°C, ranking #11 of 12 months by warmth.
Plan for daytime highs near 9.1°C and cooler evenings around 3.3°C.