In August, Saint-Nazaire typically sees daytime highs of 23.1°C and overnight lows around 13.4°C. Compared to the annual average high of 15.7°C, August runs +7.4°C.
August in Saint-Nazaire averages a daytime high of 23.1°C and an overnight low of 13.4°C.
August runs +7.4°C compared to Saint-Nazaire's annual average high of 15.7°C, ranking #2 of 12 months by warmth.
Plan for daytime highs near 23.1°C and cooler evenings around 13.4°C.