Other facts from our historical weather data: When is winter in Patreksfjörður? The coldest season / winter is in the following months: January, February and March. Which is the warmest month in Patreksfjörður? July has an average maximum temperature of 12°C (54°F) and is the warmest month of the year. Which is the coldest month in Patreksfjörður? The coldest month is February with an average maximum temperature of 2°C (36°F). Which is the wettest month in Patreksfjörður? September tops the wettest month list with 144mm (5.7 in) of rainfall. Which is the driest month in Patreksfjörður? June is the driest month with 60mm (2.4 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.