Other facts from our historical weather data: Which months have the greatest rainfall in Glerem? Most rainfall (rainy season) is seen in January, February, June, August, September and December. When is winter in Glerem? The coldest season / winter is in the following months: January, February and December. Which is the warmest month in Glerem? 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 Glerem? The coldest month is January with an average maximum temperature of 1°C (34°F). Which is the wettest month in Glerem? September tops the wettest month list with 162mm (6.4 in) of rainfall. Which is the driest month in Glerem? April is the driest month with 112mm (4.4 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.