Visual Calendar
Official Calendar Images
Official calendar scans for San Marino Unified School District. Click any image to open full-screen.
School Calendar
Download PDF Calendar
Download San Marino Unified School District's 2026–2027 academic calendar PDF — holidays, breaks, and key dates.
For the 2026–2027 school year, the district serves 4 schools in California. Classes begin August 12, 2026 and end June 3, 2027, with 180 instructional days planned. All dates listed below are sourced from the district's official publications. Verify with San Marino Unified School District before scheduling around them.
About the District
School Information
Details and contact information for San Marino Unified School District USD.
Common Questions
Frequently Asked Questions
San Marino Unified School District Calendar 2026–2027 — important dates and answers.
The first day of school for students in the San Marino Unified School District Calendar 2026-2027 is August 12, 2026 (Wednesday).
Spring Break is scheduled from April 5 through April 9, 2027. Classes resume on April 12, 2027.
Christmas Break is part of the district's Winter Break, which runs from December 21, 2026 through January 1, 2027.
Winter Break begins on December 21, 2026 and continues through January 1, 2027.
Thanksgiving Break is scheduled from November 23 through November 27, 2026.
The last day of school for students is June 3, 2027 (Thursday).
Labor Day will be observed on September 7, 2026, and schools will be closed.
Martin Luther King Jr. Day will be observed on January 18, 2027.
Presidents' Week is scheduled from February 15 through February 19, 2027.
Memorial Day will be observed on May 31, 2027, and there will be no school.
Professional Development days are scheduled for August 10, 2026, October 21, 2026, January 27, 2027, and March 17, 2027.
Teacher Prep Day is scheduled for August 11, 2026, one day before students return to school.
The first quarter ends on October 9, 2026.
The second quarter ends on December 18, 2026, just before Winter Break begins.
The third quarter concludes on March 19, 2027.
The 2026-2027 school year concludes on June 3, 2027, which is also the last day of school and the end of the fourth quarter and third trimester.
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