In August, Arnsberg typically sees daytime highs of 20.6°C and overnight lows around 10.9°C. Compared to the annual average high of 11.9°C, August runs +8.7°C.
August in Arnsberg averages a daytime high of 20.6°C and an overnight low of 10.9°C.
August runs +8.7°C compared to Arnsberg's annual average high of 11.9°C, ranking #2 of 12 months by warmth.
Plan for daytime highs near 20.6°C and cooler evenings around 10.9°C.