The best months to visit Germany are September and May. See monthly temperatures, rainfall and rain days (1991–2020 averages) to plan your trip.
Average daytime high and monthly rainfall in Germany: January 4°C / 50mm; February 10°C / 37mm; March 12°C / 48mm; April 15°C / 37mm; May 19°C / 56mm; June 21°C / 59mm; July 24°C / 77mm; August 26°C / 56mm; September 21°C / 52mm; October 15°C / 46mm; November 8°C / 42mm; December 5°C / 46mm.