Home / School calendars / Texas / Seminole ISD TX Calendar 26-27

Texas school calendar

Seminole ISD TX Calendar 26-27

  • 2026/27
  • Texas
  • 4 teacher days

The Seminole ISD 2026–27 school year runs from Aug 12, 2026 to May 21, 2027. Breaks include Thanksgiving break Nov 23-27, winter break Dec 21-31, and spring break Mar 15-19. The table below lists all teacher workdays and holidays. Download the PDF calendar, or read the FAQs.

School year starts Wed, Aug 12, 2026 First Day of School
School year ends Fri, May 21, 2027 Last Day of School
Next key date Wed, Aug 12, 2026 Counts down once the school year is under way

Seminole ISD 2026-27 calendar

Select a thumbnail to open it full size, zoom in, or download it.

Seminole ISD school year calendar

Every published date for 2026–27, colour-coded by what happens that day.

  • First day of school
  • Last day of school
  • Holiday - school closed
  • Break / vacation
  • Teacher / professional day
  • Graduation
  • Other scheduled date

August 2026

  • Aug 3-4, 2026 — New Staff Inservice
  • Aug 3-7, 2026 — Staff Development
  • Aug 10-11, 2026 — Staff Development
  • Aug 12, 2026 — First Day of School

September 2026

October 2026

November 2026

  • Nov 23-27, 2026 — Thanksgiving Break

December 2026

  • Dec 21-31, 2026 — Winter Break

January 2027

  • Jan 1, 2027 — New Year's Holiday

February 2027

March 2027

  • Mar 15-19, 2027 — Spring Break

April 2027

May 2027

  • May 21, 2027 — Last Day of School
  • May 21, 2027 — Graduation

June 2027

July 2027

Seminole ISD teacher and staff days 2026/27

Students normally stay home on these days. Confirm with the district before making plans.

  • Jul 31, 2026 New Staff Inservice District source
  • Aug 3-4, 2026 New Staff Inservice District source
  • Aug 3-7, 2026 Staff Development District source
  • Aug 10-11, 2026 Staff Development District source

Seminole ISD breaks and holidays

School is closed to students on these dates.

  • Nov 23-27, 2026 Thanksgiving Break Break
  • Dec 21-31, 2026 Winter Break Break
  • Jan 1, 2027 New Year's Holiday Holiday
  • Mar 15-19, 2027 Spring Break Break

Your checked 2026/27 Seminole ISD planning calendar

How these dates are put together, and what to double-check before you book anything.

Useful now12 published dates for the 2026–27 school year, laid out month by month.
CheckedTaken from the district’s own published calendar, not retyped from memory.
Kept currentLast updated April 29, 2026.
Full term dates table

Seminole ISD 2026–27 calendar dates

DateEvent
Jul 28-29, 2026District of Innovation (DOI) Days - Non Working Days
Jul 31, 2026New Staff Inservice
Aug 3-4, 2026New Staff Inservice
Aug 3-7, 2026Staff Development
Aug 10-11, 2026Staff Development
Aug 12, 2026First Day of School
Nov 23-27, 2026Thanksgiving Break
Dec 21-31, 2026Winter Break
Jan 1, 2027New Year's Holiday
Mar 15-19, 2027Spring Break
May 21, 2027Last Day of School
May 21, 2027Graduation

Seminole ISD Calendar 2026-2027 – Frequently Asked Questions

When is the first day of school in Seminole ISD for 2026-2027?
The first day of school in Seminole ISD for the 2026–2027 academic year is August 12, 2026.
When is Spring Break in Seminole ISD for 2027?
Spring Break in Seminole ISD is scheduled from March 15 through March 19, 2027.
When is Christmas Break in Seminole ISD for 2026?
Christmas Break for Seminole ISD students falls during the Winter Break period from December 21 to December 31, 2026.
When is Winter Break in Seminole ISD for the 2026-2027 school year?
Winter Break in Seminole ISD runs from December 21 through December 31, 2026, with an additional New Year’s holiday on January 1, 2027.
When is Thanksgiving Break in Seminole ISD for 2026?
Thanksgiving Break in Seminole ISD is scheduled from November 23 to November 27, 2026.
When is the last day of school in Seminole ISD for 2027?
The last day of school for Seminole ISD students in the 2026–2027 school year is May 21, 2027.
When is graduation in Seminole ISD for 2027?
Graduation for Seminole ISD seniors is scheduled for May 21, 2027.
When are the New Staff Inservice days in Seminole ISD for 2026?
New Staff Inservice days in Seminole ISD are July 31, 2026, and August 3–4, 2026.
When are Staff Development days in Seminole ISD before school starts?
Staff Development days in Seminole ISD take place from August 3 to August 7, 2026, and August 10 to August 11, 2026.
How many student days are in the Seminole ISD 2026-2027 calendar?
The Seminole ISD 2026–2027 academic calendar includes a total of 170 student days.

Useful next steps

Switch school, download the calendar, or compare against other districts in Texas.

All Texas calendars Download this calendar School supply list Switch state

Seminole ISD calendar FAQs

When is the first day of school in Seminole ISD for 2026-2027?
The first day of school in Seminole ISD for the 2026–2027 academic year is August 12, 2026.
When is Spring Break in Seminole ISD for 2027?
Spring Break in Seminole ISD is scheduled from March 15 through March 19, 2027.
When is Christmas Break in Seminole ISD for 2026?
Christmas Break for Seminole ISD students falls during the Winter Break period from December 21 to December 31, 2026.
When is Winter Break in Seminole ISD for the 2026-2027 school year?
Winter Break in Seminole ISD runs from December 21 through December 31, 2026, with an additional New Year’s holiday on January 1, 2027.
When is Thanksgiving Break in Seminole ISD for 2026?
Thanksgiving Break in Seminole ISD is scheduled from November 23 to November 27, 2026.
When is the last day of school in Seminole ISD for 2027?
The last day of school for Seminole ISD students in the 2026–2027 school year is May 21, 2027.
When is graduation in Seminole ISD for 2027?
Graduation for Seminole ISD seniors is scheduled for May 21, 2027.
When are the New Staff Inservice days in Seminole ISD for 2026?
New Staff Inservice days in Seminole ISD are July 31, 2026, and August 3–4, 2026.
When are Staff Development days in Seminole ISD before school starts?
Staff Development days in Seminole ISD take place from August 3 to August 7, 2026, and August 10 to August 11, 2026.
How many student days are in the Seminole ISD 2026-2027 calendar?
The Seminole ISD 2026–2027 academic calendar includes a total of 170 student days.

Dates can change after publication. Read our calendar disclaimer.