San Dieguito Union High School District Calendar 2026-2027

San Dieguito Union High School District starts school on August 11, 2026, earlier than 68 of the 103 other California districts we track (8 start the same day). Its spring break (Mar 29 to Apr 2, 2027) is the most common spring break week in California (34 of 100 districts we track). The last day of school is Friday, May 28, 2027.

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First dayTue, Aug 11, 2026

Last dayFri, May 28, 2027

Spring breakMar 29 to Apr 2, 2027back Tue, Apr 6, 2027

Winter breakDec 21 to Jan 1back Wed, Jan 6, 2027

All 2026-2027 dates

180 student days by our count · Weekends are not listed. Past dates are dimmed.

San Dieguito Union High School District 2026-2027 Instructional Calendar 2026-27 (all schools) dates
Date	Event
Tue, Aug 11, 2026	First day of school Unconfirmed, check district site
Mon, Sep 7, 2026	Labor Day
Mon, Oct 12, 2026	Teacher workday, no school for students
Wed, Nov 11, 2026	Veterans Day
Mon, Nov 23 to Fri, Nov 27, 2026	Fall Break · 5 school days off
Mon, Dec 21, 2026 to Fri, Jan 1, 2027	Winter Break · 10 school days off
Mon, Jan 4, 2027	Teacher workday, no school for students
Tue, Jan 5, 2027	Teacher workday, no school for students
Mon, Jan 18, 2027	Martin Luther King Jr. Day
Mon, Feb 15 to Tue, Feb 16, 2027	Lincoln Day / Washington Day · 2 school days off
Mon, Mar 29 to Fri, Apr 2, 2027	Spring Break · 5 school days off
Mon, Apr 5, 2027	Teacher workday, no school for students
Fri, May 28, 2027	Last day of school Unconfirmed, check district site

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Verified against San Dieguito Union High School District’s official 2026-2027 calendar on September 29, 2026. Confidence: Medium.

Source: San Dieguito Union High School District Instructional Calendar 2026-27 (PDF)

We fetch this document again every day and compare it with the version we verified; if the district changes it, the dates here are read again.

Note: The header says 'August 12, 2026 through May 29, 2027', but the calendar grid, key-dates list and quarter counts all show the first day of school as Aug 11, 2026 and the end of 2nd semester as May 28, 2027. Those dates are used here. The week of Nov 23-27 is called 'Fall Break' and includes Thanksgiving (Nov 26). Winter Break is printed Dec 19-31 plus Jan 1; weekdays are Dec 21-Jan 1. Jan 4 is Teacher Prep Day and Jan 5 is Staff Inservice Day, with no school for students; 2nd semester starts Jan 6. Feb 15 (Lincoln Day) and Feb 16 (Washington Day) are both no school. The document does not say the calendar was board-approved. The total number of student days is not stated; monthly and quarter counts are given, and the quarters add up to 180.

Break details

Long weekends in 2026-2027

Besides the breaks above, San Dieguito Union High School District students have 4 long weekends this school year: three or more days in a row without school.

Days off	Length	Why
Sat, Sep 5 to Mon, Sep 7	3 days	Labor Day
Sat, Oct 10 to Mon, Oct 12	3 days	Teacher workday, no school for students
Sat, Jan 16 to Mon, Jan 18	3 days	Martin Luther King Jr. Day
Sat, Feb 13 to Tue, Feb 16	4 days	Lincoln Day / Washington Day

Nearby districts

Compare San Dieguito Union High School District with Poway Unified School District or any other district, with the days both are off.

District	First day	Spring break	Last day
San Dieguito Union High School District	Aug 11	Mar 29 to Apr 2	May 28
Poway Unified School District	Aug 13	Apr 12-16	Jun 3
San Diego Unified School District	Aug 10	Mar 29 to Apr 2	May 26
La Mesa-Spring Valley School District	Aug 6	Mar 29 to Apr 9	Jun 16
Cajon Valley Union School District	Aug 13	Mar 22 to Apr 2	Jun 15
Chula Vista Elementary School District	Jul 22	Mar 22 to Apr 2	Jun 4
Sweetwater Union High School District	Jul 22	Mar 22 to Apr 2	Jun 4

Frequently asked questions

When is spring break 2027 for San Dieguito Union High School District?

Spring break is Mon, Mar 29 to Fri, Apr 2, 2027. The last day of school before it is Friday, March 26, 2027, and students return Tuesday, April 6, 2027.

When does the 2026-2027 school year start and end for San Dieguito Union High School District?

The first day of school is Tuesday, August 11, 2026 and the last day is Friday, May 28, 2027.

Is there school on Veterans Day in San Dieguito Union High School District?

No. Wednesday, November 11, 2026 is a day off for students (Veterans Day).

Is there school on Columbus Day / Indigenous Peoples’ Day in San Dieguito Union High School District?

No. Monday, October 12, 2026 is a day off for students (Teacher workday, no school for students).

Is there school on Martin Luther King Jr. Day in San Dieguito Union High School District?

No. Monday, January 18, 2027 is a day off for students (Martin Luther King Jr. Day).

Where do these San Dieguito Union High School District dates come from?

Source: the district's “San Dieguito Union High School District Instructional Calendar 2026-27”, checked on September 29, 2026. We link the document on this page; if the district changes it, we update the dates and the “verified” date.

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About the district: San Dieguito Union High School District is based in Encinitas, California (San Diego County), with about 12,055 students in 10 schools (NCES Common Core of Data, 2024-25). District website: www.sduhsd.net. See all California school calendars.