- First day of schoolAugust 11, 2026
- Labor DaySeptember 7, 2026
- Thanksgiving breakNovember 26–27, 2026
- Winter breakDecember 21, 2026 – January 1, 2027
- Spring breakMarch 15–19, 2027
- Last day of schoolMay 14, 2027
Last updated September 18, 2026
Interactive calendar
Browse the key dates month by month — colored markers show each event.
🎒 First day: Tuesday, August 11, 2026
Calendar Dates
- Staff Development / Summer CompJul 29, 2026Teacher Day
- Planning / Staff DevelopmentAug 3 — Aug 10Teacher Day
- 1st Day of School / 1st Grading Period BeginsAug 11, 2026School Opens
- First Day of SchoolAug 11, 2026School Opens
- Labor Day - School HolidaySep 7, 2026No School
- 1st Grading Period EndsSep 18, 2026Grading
- 2nd Grading Period BeginsSep 21, 2026Grading
- Elementary Parent/Teacher ConferencesSep 24, 2026Teacher Day
- Staff Development / Work DayOct 12, 2026Teacher Day
- 2nd Grading Period EndsOct 30, 2026Grading
- 3rd Grading Period BeginsNov 2, 2026Grading
- School HolidayNov 9, 2026No School
- Staff Dev / Student Holiday / Summer CompNov 23 — Nov 25No School
- Thanksgiving HolidayNov 26 — Nov 27No School
- Early Release Day - Semester EndsDec 18, 2026Early Release
- 3rd Grading Period EndsDec 18, 2026Grading
- Staff Development / Work DayDec 19, 2026Teacher Day
- Christmas HolidayDec 21 — Dec 31No School
- Christmas Holiday (Continued)Jan 1, 2027No School
- Staff Development / Work DayJan 4, 2027Teacher Day
- Semester Begins / 4th Grading Period BeginsJan 5, 2027Grading
- 4th Grading Period EndsFeb 12, 2027Grading
- Staff Dev / Student Holiday / Summer CompFeb 15, 2027No School
- 5th Grading Period BeginsFeb 16, 2027Grading
- Elementary Parent/Teacher ConferencesFeb 18, 2027Teacher Day
- Early Release DayMar 12, 2027Early Release
- Spring BreakMar 15 — Mar 19No School
- Bad Weather Day / Good FridayMar 26, 2027No School
- 5th Grading Period EndsApr 2, 2027Grading
- 6th Grading Period BeginsApr 5, 2027Grading
- Early Release Day - Semester EndsMay 14, 2027Early Release
- 6th Grading Period EndsMay 14, 2027Grading
- Last Day of SchoolMay 14, 2027School Closes
- Staff Development / Work DayMay 15, 2027Teacher Day
- High School GraduationMay 21, 2027Event
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Frequently asked questions
When is the first day of school for Sundown ISD in 2026-2027?
The first day of school for Sundown ISD is Tuesday, August 11, 2026.
When is the last day of school for Sundown ISD in 2026-2027?
The last day of school for Sundown ISD is Friday, May 14, 2027.
When is Thanksgiving break for Sundown ISD?
Sundown ISD has Thanksgiving break from November 26 through 27, 2026.
When is winter break for Sundown ISD?
Sundown ISD's winter break runs from December 21 through January 1.
When is spring break for Sundown ISD in 2026-2027?
Sundown ISD's spring break is March 15 through 19, 2027.
Does Sundown ISD have school on Labor Day?
No. Sundown ISD is closed for Labor Day on Monday, September 7, 2026.
