Weather will likely play an important role when you plan your trip to Gelgaudiškis, and keep 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 temp of 61°F, while the coldest months are January and February with an average of 29°F. The snowiest months in Gelgaudiškis are January, February, December, and November, with each month seeing an average of 14 inches of snowfall.