Despite pronouncements on various social networking sites and forums throughout the year, there does not appear to be an official "National Sisters Week." However, there is a Sisters Day, which is celebrated on the first Sunday of August. This year, it was celebrated on August 7.
The unofficial holiday honors the strong bond that people share with their sister(s). Sometimes called National Sisters' Day in the United States, the holiday encourages people to celebrate the special relationship between them and their sister(s).
This is a day to acknowledge the joy and love that your sister brings into your life and to make sure that she knows that you cherish all that she does for you.
See future Sisters' Day Observances and learn how to celebrate it at TimeandDate.com.
Check out 10 Ways to Be Closer to Your Siblings, shared by Real Simple.