Other facts from our historical weather data: Which months have the greatest rainfall in Egilsstadir? Most rainfall (rainy season) is seen in January and October. Which is the warmest month in Egilsstadir? July has an average maximum temperature of 14°C (57°F) and is the warmest month of the year. Which is the coldest month in Egilsstadir? The coldest month is December with an average maximum temperature of 0°C (32°F). Which is the wettest month in Egilsstadir? January tops the wettest month list with 158mm (6.2 in) of rainfall. Which is the driest month in Egilsstadir? June is the driest month with 74mm (2.9 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.