Sunnyvale ISD SISD School Calendar 26-27
First DayAug 12, 2026
Last DayMay 27, 2027
Instr. Days180
Holidays0
Visual Calendar
Official calendar scans for Sunnyvale ISD. Click any image to open full-screen.
School Calendar
Download Sunnyvale ISD's 2026–2027 academic calendar PDF — holidays, breaks, and key dates.
For the 2026–2027 school year, the district serves 3,000 students across 4 schools in North Texas, Texas. Classes begin August 12, 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 Sunnyvale ISD before scheduling around them.
About the District
Details and contact information for Sunnyvale ISD SISD.
Common Questions
Sunnyvale ISD Calendar 2026–2027 — important dates and answers.
The first day of school in Sunnyvale ISD for the 2026-2027 calendar year is August 12, 2026.
Spring break in Sunnyvale ISD is scheduled from March 15 to March 19, 2027.
Christmas break in Sunnyvale ISD begins on December 21, 2026 and continues through January 1, 2027.
Winter break in Sunnyvale ISD runs from December 21, 2026 to January 1, 2027.
Thanksgiving break in Sunnyvale ISD is from November 23 to November 27, 2026.
The last day of school in Sunnyvale ISD is May 27, 2027, and it is an early release day.
The second quarter begins on October 19, 2026.
The third quarter begins on January 6, 2027.
The fourth quarter begins on March 22, 2027.
STAAR/EOC testing is scheduled from April 12 to April 23, 2027.
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