Climate In Germany a warm, moderate rainy climate with westerly winds prevails. Major fluctuations in temperature are rare. There is rainfall throughout the year. Mild winters (2 °C to –6 °C) and not too hot summers (18 °C to 20 °C) are the rule. In 2014, the mean annual temperature reached a record 10.3 °C, which was 2.1 degrees above the long-term average of 8.2 °C for the international reference period 1961 to 1990. 2014 was 0.4 degrees warmer than the previous warmest years 2000 and 2007.