Assumption Day, also known as the Feast of Assumption, is a nationally recognized holiday in Chile. Celebrated annually on the 15th of August, it is a significant event in the Catholic calendar. The day is dedicated to honor the belief in the assumption of Mary, the mother of Jesus, into heaven. This holiday is characterized by a myriad of religious activities and ceremonies across the country.

In Chile, the observation of this day is deeply rooted in religious traditions and customs. Vast numbers of believers head to churches to attend special religious services or Mass. These often involve praying the Rosary and participating in the Eucharist. Some cities even hold large processions through the streets in honor of Virgin Mary. It's also a day for families to gather and spend quality time together.

The holiday is regulated by the Ministry of Labor and Social Welfare and all businesses, schools, and government offices are usually closed. The amidst bustling city streets, many Chileans also take advantage of the public holiday to escape to the countryside or the beach for a long weekend. Despite its solemnity, Assumption Day is also imbued with various manifestations of popular Chilean culture, further making it one of the important holidays in Chile.