In Finnish Christmas tradition, many people visit a sauna as part of their Christmas Eve preparations.
The Christmas sauna is a longstanding Finnish custom. Families may heat the sauna during the afternoon or early evening on Christmas Eve, wash, and then continue with the rest of the celebration, including a festive meal and the exchange of gifts. The practice reflects the sauna’s importance in Finnish domestic life as a place for bathing, relaxation, and family ritual.
Historically, the Christmas sauna could also have a solemn quality. In rural households, it was associated with cleansing before the holiday and with respect for the dead or the supernatural world. Older traditions sometimes imagined that spirits or deceased ancestors might use the sauna after the living had finished.
A Christmas sauna is not the same as a public steam room or an ordinary bathroom. It refers specifically to the traditional Finnish sauna, whose heat and bathing customs are deeply embedded in Finnish culture.