In August, Alphen aan den Rijn typically sees daytime highs of 20.7°C and overnight lows around 12.3°C. Compared to the annual average high of 12.9°C, August runs +7.8°C.
August in Alphen aan den Rijn averages a daytime high of 20.7°C and an overnight low of 12.3°C.
August runs +7.8°C compared to Alphen aan den Rijn's annual average high of 12.9°C, ranking #1 of 12 months by warmth.
Plan for daytime highs near 20.7°C and cooler evenings around 12.3°C.