Weather will likely play an important role when you plan your trip to Sergiyev Posad, but bear in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually July and August, with an average temperature of 17°C, while the coldest months are January and February, with an average of -6°C. The snowiest months in Sergiyev Posad are December, February, January and November, with each month seeing an average of 51 cm of snowfall.