Katy ISD school calendar 2026–27
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First day of school: Wednesday, August 12, 2026
The 2026–27 year at a glance
| What | When | No school |
|---|---|---|
| First day of school | Wednesday, August 12, 2026 | |
| Labor Day | September 7, 2026 | 1 day |
| Campus Professional Learning Day | September 18, 2026 | 1 day |
| Fall Break | October 9–13, 2026 | 5 days |
| Campus Professional Learning Day | October 23, 2026 | 1 day |
| Campus Professional Learning Day | November 2, 2026 | 1 day |
| Thanksgiving Break | November 23–27, 2026 | 5 days |
| Winter Break | December 21, 2026 – January 1, 2027 | 12 days |
| Campus Day | January 4, 2027 | 1 day |
| Martin Luther King Jr. Day | January 18, 2027 | 1 day |
| Campus Professional Learning Day | February 12, 2027 | 1 day |
| Presidents Day (student/staff holiday) | February 15, 2027 | 1 day |
| Spring Break | March 8–12, 2027 | 5 days |
| Good Friday-Easter Monday Holiday | March 26–29, 2027 | 4 days |
| Campus Professional Learning Day | April 9, 2027 | 1 day |
| Last day of school | Wednesday, May 26, 2027 |
Worth knowing: Both December 18 and the last day of school are early-dismissal days.
Source: Katy ISD 2026–27 academic calendar, adopted January 2026. Checked against the district's published calendar on August 13, 2026.
Add these dates to your calendar — an .ics file of every date above, for Google Calendar, Apple Calendar or Outlook.
Next year: 2027–28
Katy ISD has already adopted its 2027–28 calendar. The first day of school is Wednesday, August 11, 2027, and the last day is May 24, 2028. Breaks and holidays for that year go on this page as the district publishes them.
Source: Katy ISD 2027–28 academic calendar. Checked against the district's published calendar on August 13, 2026.
Questions parents ask
When does school start for Katy ISD in 2026?
The first day of the 2026–27 school year is Wednesday, August 12, 2026.
When is Katy ISD's Thanksgiving break?
Thanksgiving break is November 23–27, 2026.
When is Katy ISD's winter break?
Winter break runs December 21, 2026 – January 1, 2027. Students return Tuesday, January 5, 2027.
When is Katy ISD's spring break in 2027?
Spring break is March 8–12, 2027.
When is the 100th day of school for Katy ISD?
Counting student days forward from August 12, 2026 across the breaks and holidays on the district's published calendar, the 100th day falls on Monday, February 1, 2027. A snow day or any closure added midyear pushes it later.
When is the last day of school for Katy ISD?
The 2026–27 school year ends Wednesday, May 26, 2027.
Has Katy ISD released its 2027–28 calendar?
Yes — the 2027–28 first day of school is Wednesday, August 11, 2027.
About Katy ISD
Katy Independent School District serves about 95,000 students in Harris County. Official site: katyisd.org.
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