In the footage, the 68-year-old man is seen coming out of a wooden hut wearing a long sheepskin coat, undressing and submerging three times in a cross-shaped pool crowned with a statue of crucifixion carved out of ice.
Temperatures in the Moscow region were around -20 degrees Celsius (-4 degrees Fahrenheit) last week.
Celebrated on January 19, Epiphany Day commemorates Jesus’ baptism in the Jordan River. In Epiphany, water is considered sacred and many people in Russia and Eastern Europe take a dip as a sign of their orthodox Christian faith.
Tradition is believed to bring good health, strengthen the immune system and cleanse sins.
Putin’s blue swimming trunks in the footage were noticed on Russian social media, due to their similarity to the missing blue underwear allegedly used to poison Navalny with the nervous agent Novichok last year.