Other facts from our historical weather data: Which is the warmest month in Narvik? July has an average maximum temperature of 17°C (63°F) and is the warmest month of the year. Which is the coldest month in Narvik? The coldest month is January with an average maximum temperature of -4°C (25°F). Which is the wettest month in Narvik? September tops the wettest month list with 147mm (5.8 in) of rainfall. Which is the driest month in Narvik? April is the driest month with 94mm (3.7 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.