San Diego County Fair 2025 Dates
San Diego County Fair 2025 Dates. The 2025 san diego county fair is open june 11 through july 6 (closed mondays & tuesdays.) the fair is open from 11am to 11pm each day. The san diego county fair is the wests largest fair.
The 2025 fair will be open june 11 through july 6, with closures every monday and tuesday. Over 1.5 million people attend in june and july annually.