In April, Heidelberg typically sees daytime highs of 14.6°C and overnight lows around 4.2°C. Compared to the annual average high of 14.2°C, April runs +0.4°C.
April in Heidelberg averages a daytime high of 14.6°C and an overnight low of 4.2°C.
April runs +0.4°C compared to Heidelberg's annual average high of 14.2°C, ranking #6 of 12 months by warmth.
Plan for daytime highs near 14.6°C and cooler evenings around 4.2°C.