This is a list of Vodun holidays. It is by no means complete. These are just the ones I know of and have gathered from a variety of people and sources. Different cultures have different days. Some synchronize them with Wiccan or Catholic holidays. Follow your own soul on this.
January 10: “Voodoo Day”, or Traditions Day, which is celebrated in Benin and by some in the diaspora to give thanks for and remember our African heritage and spirituality.
January 17: Yoruba Feast of Ogun
February 2: Feast of Oya
Sometime in February or March: The Festival of Obatala and Oshun
March 19: Feast of Osayin
March 25: Feast of Oshun
April 23: Santeria feast of Ogun
May 25: Feast of Ochossi (If hosting an event, you must have a dance on this day.)
June 16: Anniversary of the death of Marie Laveau, the most famous New Orleans Voudou priestess in U.S. history
June 21: Feast of Babalu Aye
June 29: Feast of Eleggua (This is an excellent day to do readings, so if you’re hosting, have an area just for this where people can have some privacy.)
Friday closest to August 15: Festa de Boa Morte (Festival of the Good Death) in Bahia Brazil.
Last Friday of August: Feast of Oshun in Oshogbo, the town in Nigeria whose official Orisha is Oshun. Yes, you can get tickets. Call your travel agent. Videos of the Festival of Oshun.
September 8: Feast of Oshun
September 10: Birthday of Marie Laveau
September 24: Feast of Obatala
September 29: Feast of Eleggua, also Initiation Day
September 30: Feast of Shango (Must serve some spicy foods on this day, and if you can drink but don’t get too drunk. It’s also a good day for sparring, demos, and/or wrestling matches.)
October 4: Feast of Orunmila
October 24: Feast of Erinle
November 1-2: Day of the Dead – Synchronized with the Catholic All Saints’ Day, it’s a day when the ancestors are honored. Different cultures have different ways of doing it, but generally, food offerings are given to the dead.
Day of the Dead in Haiti
November 25: Feast of Oya
December 4: Feast of Shango
December 17: Feast of Babalu Aye
December 31: Feast of Yemaya