The dates when San Francisco hotels fill up and prices jump: Dreamforce and other big Moscone Center conventions, Outside Lands in August and big Chase Center and Oracle Park concerts. Check here before you pick your travel dates.
During the biggest Moscone Center conventions (Dreamforce in the fall above all), Outside Lands weekend in August and Fleet Week in October.
Avoid the dates on this page, and prefer Sunday to Thursday nights; weekends cost more almost every week of the year.
Dates come from the organizers; we check them regularly.