In December, Rosenheim typically sees daytime highs of 3.0°C and overnight lows around -3.6°C. Compared to the annual average high of 12.9°C, December runs -9.9°C.
December in Rosenheim averages a daytime high of 3.0°C and an overnight low of -3.6°C.
December runs -9.9°C compared to Rosenheim's annual average high of 12.9°C, ranking #11 of 12 months by warmth.
Plan for daytime highs near 3.0°C and cooler evenings around -3.6°C.