In August, Heilbronn typically sees daytime highs of 23.4°C and overnight lows around 12.6°C. Compared to the annual average high of 14.0°C, August runs +9.4°C.
August in Heilbronn averages a daytime high of 23.4°C and an overnight low of 12.6°C.
August runs +9.4°C compared to Heilbronn's annual average high of 14.0°C, ranking #2 of 12 months by warmth.
Plan for daytime highs near 23.4°C and cooler evenings around 12.6°C.