Seal structure of vehicle opening

A seal structure of a vehicle opening being applied to a vehicle including a vehicle body that includes an opening, and a closing body that closes the opening, the seal structure of a vehicle opening comprising:

• a flange extending along an opening edge of the opening;
• and
• a weather strip that includes a holding groove into which the flange is inserted, and blocks a gap generated between the vehicle body and the closing body, wherein
• a tip of the flange includes a plurality of notches and at least one projection disposed along an extending direction of the flange,
• the at least one projection is disposed along the flange in-between a respective adjacent pair of the notches,
• each of the notches extends downwards from an upper end of the tip of the flange and defines an open space along the upper end of the tip of the flange,
• the weather strip includes an inner wall and an outer wall facing each other across the holding groove, and a plurality of connection walls that connect the inner wall and the outer wall in a position corresponding to the plurality of notches,
• the holding groove includes at least one projection-receiving portion,
• the at least one projection-receiving portion is disposed in-between a respective adjacent pair of the connection walls,
• the at least one projection-receiving portion receives the at least one of projection, and
• each of the connection walls is disposed in a respective one of the notches.