Planning for the weather is a good way to make your trip to Siberian Route relaxing and enjoyable, especially when you’re splurging. The hottest months are usually July and August, with an average temperature of 16°C, while the coldest months are January and February, with an average of -11°C. The snowiest months in Siberian Route are January, December, March and February, with each month seeing an average of 142 cm of snowfall.