In August, Sankt Gallen typically sees daytime highs of 19.7°C and overnight lows around 11.5°C. Compared to the annual average high of 10.8°C, August runs +8.9°C.
August in Sankt Gallen averages a daytime high of 19.7°C and an overnight low of 11.5°C.
August runs +8.9°C compared to Sankt Gallen's annual average high of 10.8°C, ranking #2 of 12 months by warmth.
Plan for daytime highs near 19.7°C and cooler evenings around 11.5°C.