For the 2026–2027 school year, the district serves 13,000 students across 10 schools in Southern California, California. The school year starts August 11, 2026, with 180 instructional days planned. All dates listed below are sourced from the district's official publications. Verify with San Dieguito Union High School District before scheduling around them.
Visual Calendar
Official Calendar Images
Official calendar scans for San Dieguito Union High School District. Click any page to open the full-size image.
School Calendar
Interactive Calendar
San Dieguito Union High School District's 2026–2027 academic calendar — holidays, breaks, and key dates.
Month by Month Calendar
About the District
School Information
Details and contact information for San Dieguito Union High School District SDUHSD.
Sources and Checks
Where these dates come from
How the 2026–2027 San Dieguito Union High School District calendar on this page was compiled and what to re-check before you rely on it.
- ✓District publication. Dates are taken from the calendar San Dieguito Union High School District published for 2026–2027, shown as images on this page.
- ✓Official website. Cross-checked against sduhsd.net.
- ✓Board-approved version is used where the district marks one.
- ✓First and last day match the published calendar.
- ✓Breaks and holidays are listed with their full date ranges.
- ✓Teacher / no-school days are included where the district lists them.
- ✓Changes happen. Districts amend calendars mid-year — confirm with San Dieguito Union High School District before booking around a date.
Common Questions
Frequently Asked Questions
San Dieguito Union High School District Calendar 2026–2027 — important dates and answers.
The first day of school in San Dieguito Union High School District for the 2026-2027 academic year is August 11, 2026.
Spring Break in San Dieguito Union High School District is scheduled from March 29 to April 2, 2027.
Christmas Break in San Dieguito Union High School District begins on December 19, 2026 and continues through January 1, 2027 as part of the winter break.
Winter Break in San Dieguito Union High School District runs from December 19, 2026 through January 1, 2027.
Thanksgiving (Fall Break) in San Dieguito Union High School District takes place from November 23 to November 27, 2026.
The last day of school for the San Dieguito Union High School District 2026-2027 academic year is May 28, 2027.
The second semester in San Dieguito Union High School District begins on January 6, 2027.
The first semester ends on December 18, 2026 in San Dieguito Union High School District.
The third quarter in San Dieguito Union High School District ends on March 16, 2027.
No, schools are closed on Labor Day which falls on September 7, 2026 in San Dieguito Union High School District.
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