In March, Heidelberg typically sees daytime highs of 10.2°C and overnight lows around 1.3°C. Compared to the annual average high of 14.2°C, March runs -4.0°C.
March in Heidelberg averages a daytime high of 10.2°C and an overnight low of 1.3°C.
March runs -4.0°C compared to Heidelberg's annual average high of 14.2°C, ranking #8 of 12 months by warmth.
Plan for daytime highs near 10.2°C and cooler evenings around 1.3°C.