When you travel with your pet, keeping tabs on the weather can help you make the trip more safe and fun for everyone. The hottest months are usually August and July, with an average temperature of 15°C, while the coldest months are February and January, with an average of -9°C. The snowiest months in Yuzhno-Sakhalinsk are March, January, February and December, with each month seeing an average of 249 cm of snowfall.