Other facts from our historical weather data: Which months have the greatest rainfall in Schwentlberg? Most rainfall (rainy season) is seen in May, June, July and August. When is winter in Schwentlberg? The coldest season / winter is in the following months: January, February and December. Which is the warmest month in Schwentlberg? August has an average maximum temperature of 18°C (64°F) and is the warmest month of the year. Which is the coldest month in Schwentlberg? The coldest month is January with an average maximum temperature of -2°C (28°F). Which is the wettest month in Schwentlberg? June tops the wettest month list with 198mm (7.8 in) of rainfall. Which is the driest month in Schwentlberg? January is the driest month with 86mm (3.4 in) of precipitation. Which is the sunniest month in Schwentlberg? May is the sunniest month with an average of 185 hours of sunshine. 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.