- First day of schoolAugust 12, 2026
- Labor DaySeptember 7, 2026
- Thanksgiving breakNovember 23–27, 2026
- Winter breakDecember 21, 2026 – January 1, 2027
- MLK Jr. DayJanuary 18, 2027
- Spring breakMarch 15–19, 2027
- Memorial DayMay 31, 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.
🎒 First day: Wednesday, August 12, 2026
Calendar Dates
- New Teacher PDAug 4, 2026Teacher Day
- Teacher InserviceAug 5 — Aug 11Teacher Day
- First Day of SchoolAug 12, 2026School Opens
- Friday School DaysAug 14 — Aug 28Event
- Friday School DaysSep 4 — Sep 11Event
- Labor DaySep 7, 2026No School
- End of 1st Six WeeksSep 17, 2026Grading
- Teacher Work DaySep 18, 2026Teacher Day
- Beginning of 2nd Six WeeksSep 21, 2026Grading
- No School FridaySep 25, 2026No School
- No School FridaysOct 2 — Oct 30No School
- Teacher Work DayOct 9, 2026Teacher Day
- Columbus DayOct 12, 2026Event
- Friday School DayOct 16, 2026Event
- End of 2nd Six WeeksOct 29, 2026Grading
- Beginning of 3rd Six WeeksNov 2, 2026Grading
- No School FridaysNov 6 — Nov 13No School
- Teacher Work DayNov 20, 2026Teacher Day
- Thanksgiving BreakNov 23 — Nov 27No School
- Dec EOC Retest Window StartsNov 30, 2026Event
- Dec EOC Retest Window EndsDec 10, 2026Event
- End of 3rd Six Weeks and 1st SemesterDec 17, 2026Grading
- Teacher Work DayDec 18, 2026Teacher Day
- Winter BreakDec 21 — Jan 1No School
- Teacher Work DayJan 4, 2027Teacher Day
- Beginning of 4th Six WeeksJan 5, 2027Grading
- Friday School DaysJan 8 — Jan 22Event
- MLK Jr DayJan 18, 2027No School
- Teacher Work DayFeb 5, 2027Teacher Day
- Presidents DayFeb 15, 2027No School
- End of 4th Six WeeksFeb 19, 2027Grading
- Beginning of 5th Six WeeksFeb 22, 2027Grading
- Teacher Work DayMar 5, 2027Teacher Day
- Spring BreakMar 15 — Mar 19No School
- Good FridayMar 26, 2027No School
- Bad Weather DaysApr 2 — Apr 9Event
- STAAR/EOC Testing Window StartsApr 5, 2027Event
- End of 5th Six WeeksApr 15, 2027Grading
- Teacher Work DayApr 16, 2027Teacher Day
- Beginning of 6th Six WeeksApr 19, 2027Grading
- STAAR/EOC Testing Window EndsApr 29, 2027Event
- End of 6th Six Weeks / Last Day of SchoolMay 27, 2027School Closes
- Teacher Work DayMay 28, 2027Teacher Day
- Memorial DayMay 31, 2027No School
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Frequently asked questions
When is the first day of school for Slidell ISD in 2026-2027?
The first day of school for Slidell ISD is Wednesday, August 12, 2026.
When is the last day of school for Slidell ISD in 2026-2027?
The last day of school for Slidell ISD is Thursday, May 27, 2027.
When is Thanksgiving break for Slidell ISD?
Slidell ISD has Thanksgiving break from November 23 through 27, 2026.
When is winter break for Slidell ISD?
Slidell ISD's winter break runs from December 21 through January 1.
When is spring break for Slidell ISD in 2026-2027?
Slidell ISD's spring break is March 15 through 19, 2027.
Does Slidell ISD have school on Martin Luther King Jr. Day?
No. Slidell ISD is closed for Martin Luther King Jr. Day on Monday, January 18, 2027.
Does Slidell ISD have school on Labor Day?
No. Slidell ISD is closed for Labor Day on Monday, September 7, 2026.
Does Slidell ISD have school on Memorial Day?
No. Slidell ISD is closed for Memorial Day on Monday, May 31, 2027.
