Visual Calendar
Official calendar scans for San Marcos CISD. Click any image to open full-screen.
School Calendar
Download San Marcos CISD's 2026–2027 academic calendar PDF — holidays, breaks, and key dates.
The 2026–2027 academic calendar covers all key dates in Texas. Classes begin August 19, 2026 and end May 27, 2027, with 180 instructional days planned. All dates listed below are sourced from the district's official publications. Verify with San Marcos CISD School before scheduling around them.
About the District
Details and contact information for San Marcos CISD.
Common Questions
San Marcos CISD Calendar 2026–2027 — important dates and answers.
The first day of school for San Marcos CISD in the 2026-2027 school calendar is August 19, 2026.
Spring Break for San Marcos CISD in the 2026-2027 school year is scheduled from March 15 to March 19, 2027.
Christmas Break in San Marcos CISD for the 2026-2027 school year runs from December 21 to December 25, 2026.
Winter Break for San Marcos CISD students during the 2026-2027 academic year is from December 21, 2026 through January 1, 2027.
Thanksgiving Break for San Marcos CISD in the 2026-2027 school calendar is from November 23 to November 27, 2026.
The last day of school for students in San Marcos CISD for the 2026-2027 school year is May 27, 2027.
Labor Day holiday in San Marcos CISD for the 2026-2027 academic year is September 7, 2026.
Martin Luther King Jr. Day holiday in San Marcos CISD during the 2026-2027 school year is January 18, 2027.
Presidents' Day holiday in San Marcos CISD for the 2026-2027 academic year is February 15, 2027.
Parent Community Days in San Marcos CISD for the 2026-2027 school calendar are September 25, 2026 and February 12, 2027.
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