Stay updated with the AISD 2025-26 school calendar including the Traditional and Additional School Days School Year (ADSY) calendar. Find key dates for the first and last day of school, holidays and more
The Aldine ISD 2025-2026 calendar includes two different calendars as part of Aldine’s commitment to providing choices and opportunities to students and families. The two calendars consist of the Traditional and Additional School Days School Year (ADSY) calendar.
Most campuses follow the traditional. Vines Primary, Ermel Elementary, Harris Elementary, and Smith Elementary fall under the Additional Days School Year (ADSY) calendar.
Important Dates for Students on the Traditional School Year Calendar
July 29: Teachers Report to Work
August 11: First Day of Classes
September 1: Labor Day- Student Holiday
October 6: Staff Development
October 6-10: Student Holiday
November 4: Staff Development- Student Holiday
November 24-28: Thanksgiving break
December 19: Staff development- Student Holiday
December 22- January 2: Midwinter break
January 5-6: Staff Development- Student Holiday
January 7: Classes Resume
January 19: Martin Luther King Jr. Holiday
February 9: Staff Development: Student Holiday
February 9-13: Student Holiday
March 16-20: Spring Break
April 3: Student Holiday
May 15: Memorial Day Holiday
May 28: Last Day of Classes
May 29: Last Day for Teachers
Click here to download the 2025-2026 Traditional school year calendar
Important Dates for Students on the Additional Days School Year (ADSY) School Year Calendar:
Vines EC/PreK/K School, Ermel Elementary, Harris Elementary, and Smith Elementary
July 21: Teachers Report to Work
July 21-23: Staff Development
July 24: First Day of Classes
August 8: Student Holiday
September 1: Labor Day- Student Holiday
October 6-10: Student Holiday
November 25-28: Thanksgiving Break
December 22- January 2: Midwinter break
January 5: Staff Development- Student Holiday
January 6: Classes Resume
January 19: Martin Luther King Jr. Holiday
February 9: Staff Development- Student Holiday
February 10-13: Student Holiday
March 16-20: Spring Break
April 3: Student Holiday
May 25: Memorial Day Holiday
June 18: Last Day of Classes
Click here to download the 2025-2026 ADSY School Year Calendar
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