A weather strip includes an installation base member installed on a door opening edge of a retractable roof vehicle; a hollow seal part provided on an outer-cabin side with respect to the installation base member, the seal part makes elastic contact with a top end of a door glass; and a seal lip extending from the base member and having a top end which curves and makes elastic contact with an inner-cabin side surface of the door glass, the seal part and the seal lip forming an eaves-trough-shaped water receiving part, wherein: a wall surface of the hollow seal part, with which the top end of the door glass makes elastic contact, has a head part formed thereon for guiding water to a drainage hole.