Germany's climate is almost as varied as its country but mostly temperate or marine. Extreme temperature lows and highs are rare. Winter temperatures vary from west to east, with about freezing temperatures in the west and well below freezing in eastern Germany. Summer temperatures are typically between 20 and 30°C, with more rainfall during the summer. Frequent changes of weather make prognosis difficult. To be on the save side take a sweater or weather protection with you.
Apart from the coastal regions and North and Southern Bavaria, Germany's climate varies little. From Leipzig and Dresden to Stuttgart the summers are warm with frequent rainfall. Winters can be cold. The amount of snowfall and average temperatures are influenced by altitude rather than by diverse climate regions. The weather is continental in that it varies from year to year, so chilly spring and rainy summers can be followed by spectacular sunshine in the next year.
Rhine regions is blessed with a particularly pleasant climate which allows for successful cultivation of vine. Close to the borders to Switzerland in the vincinity of Freiburg im Breisgau temperatures are generally high enough to grow tobacco, too.
Due to the sea's influence the climate of Baltic and North Coast is pretty reliable and varies little. In contrast to inner Germany, the difference between seasons is less distinct. However, winters can be severe with chilly winds and freezing temperatures. Summers are warm and pleasant. Rainfall is frequent but of short duration: the amount of sunshine is high, while the amount of rainfall guarantees green and fertile landscape.
The climate of Bavaria is similar to the climate of Austrian Alps, esp. of neighbouring Tyrol. Winters can be cold and with frequent snowfall. Germany's highest peaks and deepest valleys make for beautiful wintersports resorts.
Especially the south is famous for its warm foehn winds, which are notoriously blamed for everything from headaches to uncalled-for political changes. Those warm wind mostly occur in autumn and spring and account for dramatic temperature fluctuations.