Other facts from our historical weather data: Which months have the greatest rainfall in Strengen? Most rainfall (rainy season) is seen in May, June, July and August. Which is the warmest month in Strengen? August has an average maximum temperature of 17°C (63°F) and is the warmest month of the year. Which is the coldest month in Strengen? The coldest month is January with an average maximum temperature of -3°C (27°F). Which is the wettest month in Strengen? June tops the wettest month list with 204mm (8 in) of rainfall. Which is the driest month in Strengen? February is the driest month with 103mm (4.1 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.