Overview — why this matters
San Diego Unified is one of California’s largest districts, with a sprawling footprint and diverse program offerings. The 2025–26 calendar is not just dates on a page; it’s the backbone for after-school care, middle/high school testing blocks, and seasonal activities (think summer programs and fall sports).
Official calendar: SDUSD 2025–26 Academic Calendar (PDF)

Key Dates & Holidays — SDUSD 2025–26
| Date(s) | Event |
|---|---|
| Aug 18, 2025 | First day of school (traditional calendar) |
| Sep 1, 2025 | Labor Day — No school |
| Nov 24–28, 2025 | Thanksgiving break |
| Dec 22, 2025 – Jan 2, 2026 | Winter Recess |
| Feb 16, 2026 | Lincoln/President’s Day holiday window (varies) |
| Mar 23–27, 2026 | Spring Break |
| May 29, 2026 | Last day of school (subject to make-up days) |
What SDUSD parents should watch for
- Testing season: California state assessments and local finals cluster in spring; avoid travel during late April–May.
- Dual calendars: SDUSD often publishes multiple calendar types (traditional vs. modified). Make sure you reference the calendar specific to your student’s program.
- Early dismissals: Campus-level early releases for staff development are common — subscribe to school newsletters.
Practical family strategies
- Confirm program calendar: Magnet, GATE, and alternative programs sometimes have unique schedules.
- Plan around spring assessments: Hold off major travel during March–May testing windows; use winter break for longer trips.
- Build a childcare rotation: For early release days, organize a neighborhood swap to reduce costs.
Predictive insight
Large California districts are moving toward clearer, program-specific calendars and better online subscription tools. Expect SDUSD to expand calendar feeds and campus-specific alerts to reduce parent confusion.
Conclusion
Download the official SDUSD PDF and add key dates to your digital calendar. Knowing which program your child is in will help avoid misreading district-wide dates.