Other facts from our historical weather data: Which months have the greatest rainfall in Tschagguns? Most rainfall (rainy season) is seen in May, June, July and August. When is winter in Tschagguns? The coldest season / winter is in the following months: January, February and December. Which is the warmest month in Tschagguns? July has an average maximum temperature of 19°C (66°F) and is the warmest month of the year. Which is the coldest month in Tschagguns? The coldest month is January with an average maximum temperature of -1°C (30°F). Which is the wettest month in Tschagguns? June tops the wettest month list with 209mm (8.2 in) of rainfall. Which is the driest month in Tschagguns? January is the driest month with 116mm (4.6 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.