Weather is probably a major factor when you plan your trip to San Martino di Castrozza, 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 13°C, while the coldest months are January and February, with an average of -2°C. The snowiest months in San Martino di Castrozza are February, January, March and December, with each month seeing an average of 349 cm of snowfall.