For the 2026–2027 school year, Karnack ISD publishes its official academic calendar for Texas. Classes begin Aug 13 and end May 20. All dates listed below are sourced from the district's official publications. Verify with Karnack ISD before scheduling around them.
Visual Calendar
Official Calendar Images
Official calendar scans for Karnack ISD. Click any page to open the full-size image.
School Calendar
Interactive Calendar
Karnack ISD's 2026–2027 academic calendar — holidays, breaks, and key dates.
Month by Month Calendar
- School Closed/HolidayJul 2, 2026No School
- Professional Development Days/Student HolidaysAug 3 — Aug 12No School
- First Day of SchoolAug 13, 2026School Opens
- Labor DaySep 7, 2026No School
- 3-Week Progress ReportsSep 29, 2026Event
- Failure Notices Sent OutOct 7, 2026Event
- End of First Nine WeeksOct 9, 2026Grading
- Fall BreakOct 12 — Oct 16No School
- Professional Development Day/Student HolidayOct 19, 2026No School
- Beginning of Second Nine WeeksOct 20, 2026Event
- Report CardsOct 20, 2026Event
- Thanksgiving BreakNov 23 — Nov 27No School
- 3-Week Progress ReportsDec 8, 2026Event
- Failure Notices Sent OutDec 9, 2026Event
- End of Second Nine WeeksDec 18, 2026Grading
- Christmas BreakDec 21 — Jan 5No School
- Professional Development Day/Student HolidayJan 6, 2027No School
- Beginning of Third Nine WeeksJan 7, 2027Event
- Report CardsJan 14, 2027Event
- Martin Luther King Jr. DayJan 18, 2027No School
- 3-Week Progress ReportsFeb 2, 2027Event
- Presidents' DayFeb 15, 2027No School
- 3-Week Progress ReportsFeb 23, 2027Event
- Failure Notices Sent OutFeb 24, 2027Event
- End of Third Nine WeeksMar 5, 2027Grading
- Spring BreakMar 8 — Mar 12No School
- Professional Development Day/Student HolidayMar 15, 2027No School
- Beginning of Fourth Nine WeeksMar 16, 2027Event
- Report CardsMar 18, 2027Event
- Good FridayMar 26, 2027No School
- 3-Week Progress ReportsApr 6, 2027Event
- 3-Week Progress ReportsApr 27, 2027Event
- Failure Notices Sent OutMay 5, 2027Event
- Report CardsMay 19, 2027Event
- Last Day of School and End of Fourth Nine WeeksMay 20, 2027School Closes
- Professional Development Day/Student HolidayMay 21, 2027No School
- School Closed/HolidayMay 24, 2027No School
- School Closed/HolidayJun 17, 2027No School
About the District
School Information
Details and contact information for Karnack ISD.
Sources and Checks
Where these dates come from
How the 2026–2027 Karnack ISD calendar on this page was compiled and what to re-check before you rely on it.
- ✓District publication. Dates are taken from the calendar Karnack ISD published for 2026–2027, shown as images on this page.
- ✓Official website. Cross-checked against karnackisd.net.
- ✓Board-approved version is used where the district marks one.
- ✓First and last day match the published calendar.
- ✓Breaks and holidays are listed with their full date ranges.
- ✓Teacher / no-school days are included where the district lists them.
- ✓Changes happen. Districts amend calendars mid-year — confirm with Karnack ISD before booking around a date.
Common Questions
Frequently Asked Questions
Karnack ISD Calendar 2026–2027 — important dates and answers.
The first day of school in Karnack ISD is August 13, 2026.
Fall Break in Karnack ISD is from October 12 through October 16, 2026.
Thanksgiving Break in Karnack ISD is from November 23 through November 27, 2026.
Christmas Break in Karnack ISD is from December 21, 2026, through January 5, 2027.
Winter Break, listed as Christmas Break on the Karnack ISD calendar, is from December 21, 2026, through January 5, 2027.
Spring Break in Karnack ISD is from March 8 through March 12, 2027.
The last day of school in Karnack ISD is May 20, 2027.
Karnack ISD will be closed for Labor Day on September 7, 2026.
Karnack ISD will be closed for Martin Luther King Jr. Day on January 18, 2027.
Karnack ISD will be closed for Presidents' Day on February 15, 2027.
Karnack ISD will be closed for Good Friday on March 26, 2027.
Professional development days and student holidays are August 3-12, 2026; October 19, 2026; January 6, 2027; March 15, 2027; and May 21, 2027.
The first nine-week grading period ends on October 9, 2026.
The second nine-week grading period ends on December 18, 2026.
The third nine-week grading period ends on March 5, 2027.
The fourth nine-week grading period ends on May 20, 2027.
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Recently Updated Calendars
Other Texas school district calendars — recently added or updated.