Seafair 2024 Dates. Seafair is the high point of a seattle summer. Spanning 10 weeks, featuring 40+ events, and reaching more than two million people each year!
Dates according to drik panchang, the month of sawan will start on july 22 this year and will go on till august 19. Seafair weekend is seattle’s premier boating event, air show, and festival all rolled into.