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Sunnyvale ISD Calendar 2026-2027

Dallas County · Richardson area (Region 10)

  • First day of schoolAugust 12, 2026
  • Labor DaySeptember 7, 2026
  • Fall breakSeptember 28 – October 2, 2026
  • Thanksgiving breakNovember 23–27, 2026
  • Winter breakDecember 21, 2026 – January 1, 2027
  • MLK Jr. DayJanuary 18, 2027
  • Spring breakMarch 15–19, 2027
  • Last day of schoolMay 27, 2027

Last updated September 18, 2026

Interactive calendar

Browse the key dates month by month — colored markers show each event.

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    Printable Calendar PDF

    Official Calendar

    Source: Sunnyvale ISD (sunnyvaleisd.com) ↗
    First day: Wednesday, August 12, 2026

    Calendar Dates

    • New TeacherAug 3 — Aug 4Teacher Day
    • Staff DevelopmentAug 5 — Aug 11Teacher Day
    • First Day of SchoolAug 12, 2026School Opens
    • Begin 1st QuarterAug 12, 2026Event
    • Labor DaySep 7, 2026No School
    • Staff DevelopmentSep 8, 2026Teacher Day
    • Fall BreakSep 28 — Sep 30No School
    • Fall BreakOct 1 — Oct 2No School
    • End of 1st QuarterOct 16, 2026Grading
    • Begin 2nd QuarterOct 19, 2026Event
    • Prep Day / Parent ConferencesOct 30, 2026Event
    • Staff Development / Parent ConferencesNov 2, 2026Teacher Day
    • Trade DayNov 23, 2026Event
    • Thanksgiving BreakNov 23 — Nov 27No School
    • Early ReleaseDec 18, 2026Early Release
    • End of 2nd QuarterDec 18, 2026Grading
    • Winter BreakDec 21 — Dec 31No School
    • Winter BreakJan 1, 2027No School
    • Trade DayJan 4, 2027Event
    • Staff DevelopmentJan 5, 2027Teacher Day
    • Begin 3rd QuarterJan 6, 2027Event
    • MLK Jr. HolidayJan 18, 2027No School
    • Prep DayFeb 12, 2027Event
    • Staff DevelopmentFeb 15, 2027Teacher Day
    • End of 3rd QuarterMar 12, 2027Grading
    • Spring BreakMar 15 — Mar 19No School
    • Begin 4th QuarterMar 22, 2027Event
    • Trade Day / Good FridayMar 26, 2027No School
    • Prep Day / Parent ConferencesMar 29, 2027Event
    • STAAR/EOC TestingApr 12 — Apr 23Event
    • Prep DayApr 30, 2027Event
    • Prep DayMay 10, 2027Event
    • Last Day of School / Early ReleaseMay 27, 2027School Closes
    • Teacher Work DayMay 28, 2027Teacher Day

    Frequently asked questions

    When is the first day of school for Sunnyvale ISD in 2026-2027?

    The first day of school for Sunnyvale ISD is Wednesday, August 12, 2026.

    When is the last day of school for Sunnyvale ISD in 2026-2027?

    The last day of school for Sunnyvale ISD is Thursday, May 27, 2027.

    When is Thanksgiving break for Sunnyvale ISD?

    Sunnyvale ISD has Thanksgiving break from November 23 through 27, 2026.

    When is winter break for Sunnyvale ISD?

    Sunnyvale ISD's winter break runs from December 21 through January 1.

    When is spring break for Sunnyvale ISD in 2026-2027?

    Sunnyvale ISD's spring break is March 15 through 19, 2027.

    When is fall break for Sunnyvale ISD?

    Sunnyvale ISD has a fall break from September 28 through October 2, 2026.

    Does Sunnyvale ISD have school on Martin Luther King Jr. Day?

    No. Sunnyvale ISD is closed for Martin Luther King Jr. Day on Monday, January 18, 2027.

    Does Sunnyvale ISD have school on Labor Day?

    No. Sunnyvale ISD is closed for Labor Day on Monday, September 7, 2026.

    When does the second quarter begin in Sunnyvale ISD 2026-2027?

    The second quarter begins on October 19, 2026.

    When does the third quarter begin in Sunnyvale ISD 2026-2027?

    The third quarter begins on January 6, 2027.

    When does the fourth quarter begin in Sunnyvale ISD 2026-2027?

    The fourth quarter begins on March 22, 2027.

    When is STAAR/EOC testing in Sunnyvale ISD 2026-2027?

    STAAR/EOC testing is scheduled from April 12 to April 23, 2027.

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