In December, Alphen aan den Rijn typically sees daytime highs of 6.0°C and overnight lows around 1.2°C. Compared to the annual average high of 12.9°C, December runs -6.9°C.
December in Alphen aan den Rijn averages a daytime high of 6.0°C and an overnight low of 1.2°C.
December runs -6.9°C compared to Alphen aan den Rijn's annual average high of 12.9°C, ranking #10 of 12 months by warmth.
Plan for daytime highs near 6.0°C and cooler evenings around 1.2°C.