In September, Rosenheim typically sees daytime highs of 19.1°C and overnight lows around 8.8°C. Compared to the annual average high of 12.9°C, September runs +6.2°C.
September in Rosenheim averages a daytime high of 19.1°C and an overnight low of 8.8°C.
September runs +6.2°C compared to Rosenheim's annual average high of 12.9°C, ranking #4 of 12 months by warmth.
Plan for daytime highs near 19.1°C and cooler evenings around 8.8°C.