In August, Saint-Etienne typically sees daytime highs of 22.6°C and overnight lows around 11.5°C. Compared to the annual average high of 13.3°C, August runs +9.2°C.
August in Saint-Etienne averages a daytime high of 22.6°C and an overnight low of 11.5°C.
August runs +9.2°C compared to Saint-Etienne's annual average high of 13.3°C, ranking #2 of 12 months by warmth.
Plan for daytime highs near 22.6°C and cooler evenings around 11.5°C.