Other facts from our historical weather data: When is the rainy season in Oberstdorf? Rainy season in Oberstdorf occurs in the months of May, June, July, August and September. When is winter in Oberstdorf? The coldest season / winter is in the following months: January, February and December. Which is the warmest month in Oberstdorf? July has an average maximum temperature of 20°C (68°F) and is the warmest month of the year. Which is the coldest month in Oberstdorf? The coldest month is January with an average maximum temperature of 0°C (32°F). Which is the wettest month in Oberstdorf? June tops the wettest month list with 232mm (9.1 in) of rainfall. Which is the driest month in Oberstdorf? October is the driest month with 119mm (4.7 in) of precipitation. No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.