Tu B'av 2025 Calendar. Six events occurred on tu b'av, the 15th of av, making it a festive day in the jewish calendar. The 15th of av (known as tu b'av) is a most mysterious day, celebrated this year on august 19, 2025.

Tu b’av begins on the night between the 14th and 15th day of the hebrew month, coinciding with the full moon in the lunar calendar, symbolizing future. It falls this year on aug.