Planning for the weather is a good way to make your trip to Kolari relaxing and enjoyable, especially when you’re splurging. The hottest months are usually July and August, with an average temperature of 12°C, while the coldest months are January and February, with an average of -9°C. The snowiest months in Kolari are March, January, February and December, with each month seeing an average of 269 cm of snowfall.