In March, Heidelberg typically sees daytime highs of 25.3°C and overnight lows around 11.9°C. Compared to the annual average high of 23.2°C, March runs +2.1°C.
March in Heidelberg averages a daytime high of 25.3°C and an overnight low of 11.9°C.
March runs +2.1°C compared to Heidelberg's annual average high of 23.2°C, ranking #6 of 12 months by warmth.
Plan for daytime highs near 25.3°C and cooler evenings around 11.9°C.