Katy ISD school calendar
The dates from Katy ISD’s official academic calendars, ready to add instead of retype. Add it once. We update it when Katy ISD publishes a new school calendar.
2026–27 at a glance
The dates families usually look for first.
- First day
- Aug 12
- October days off
- Oct 9–13
- Spring break
- Mar 8–12
- Last day
- May 26
What happens in Mavo
One read-only school calendar that rolls forward each year.
Mavo checks the link, tells you how many events it found, then asks for a calendar name and color. When Katy ISD publishes another school year, it appears in the same linked calendar.
The source controls the schedule, so synced dates stay read-only. You can still add the family details Mavo knows about—who’s handling it, attendance, place, notes, and a clearer title.
Linked calendars are included with Mavo Everyday and higher.
Add external calendar
Katy ISD school calendar
First Day of School and Elementary 1st Grading Cycle Begins
Katy ISD 2026–27 · Read-only
Holiday
Katy ISD 2026–27 · Read-only
End of Secondary 1st Grading Cycle
Katy ISD 2026–27 · Read-only
Campus Professional Learning Day
Katy ISD 2026–27 · Read-only
Free calendar updates
Add the Katy ISD calendar
Includes 2026–27 and 2027–28. We add each new school year after Katy ISD publishes it.
Full district calendar
Current and upcoming Katy ISD dates
Staff-only summer work days are left out. Student holidays caused by staff development are included because they change the family schedule.
Current calendar
2026–27 student dates
- School date
First Day of School and Elementary 1st Grading Cycle Begins
Students attend; first day of school and fall semester. Elementary 1st grading cycle begins.
- No school
Holiday
No school for students and staff.
- School date
End of Secondary 1st Grading Cycle
Secondary 1st grading cycle ends.
- No school
Campus Professional Learning Day
No students attend; campus professional learning day.
- School date
Beginning of Secondary 2nd Grading Cycle
Secondary 2nd grading cycle begins.
- School date
End of Elementary 1st Grading Cycle
Elementary 1st grading cycle ends.
- No school
Fall Break
Fall break; no school for students and staff.
- School date
Beginning of Elementary 2nd Grading Cycle
Elementary 2nd grading cycle begins.
- No school
Campus Professional Learning Day
No students attend; campus professional learning day.
- School date
End of Secondary 2nd Grading Cycle
Secondary 2nd grading cycle ends.
- No school
Campus Professional Learning Day
No students attend; campus professional learning day.
- School date
Beginning of Secondary 3rd Grading Cycle
Secondary 3rd grading cycle begins.
- No school
Holiday Break
No school for students and staff.
- Early release
Early Dismissal and End of Fall Semester
Early dismissal; end of fall semester. Elementary 2nd and secondary 3rd grading cycles end.
- No school
Winter Break
No school for students and staff during winter break.
- No school
Campus Day
No students attend; campus day.
- School date
First Day of Spring Semester
First day of the spring semester; elementary 3rd and secondary 4th grading cycles begin.
- No school
Holiday
No school for students and staff.
- School date
End of Secondary 4th Grading Cycle
Secondary 4th grading cycle ends.
- No school
Campus Professional Learning Day
No students attend; campus professional learning day.
- No school
Holiday
No school for students and staff.
- School date
Beginning of Secondary 5th Grading Cycle
Secondary 5th grading cycle begins.
- No school
Spring Break
No school for students and staff during spring break.
- School date
End of Elementary 3rd Grading Cycle
Elementary 3rd grading cycle ends.
- School date
Beginning of Elementary 4th Grading Cycle
Elementary 4th grading cycle begins.
- No school
Holiday Break
No school for students and staff.
- School date
End of Secondary 5th Grading Cycle
Secondary 5th grading cycle ends.
- No school
Campus Professional Learning Day
No students attend; campus professional learning day.
- School date
Beginning of Secondary 6th Grading Cycle
Secondary 6th grading cycle begins.
- Early release
Early Dismissal and Last Day of School
Early dismissal; last day of school and end of spring semester. Elementary 4th and secondary 6th grading cycles end.
Upcoming calendar
2027–28 student dates
- School date
First Day of School
First day of school and fall semester; students attend.
- School date
Elementary 1st Grading Cycle Begins
Elementary 1st grading cycle begins.
- School date
Secondary 1st Grading Cycle Begins
Secondary 1st grading cycle begins.
- No school
Holiday
Students do not attend; holiday for students and staff.
- School date
Elementary 1st Grading Cycle Ends
Elementary 1st grading cycle ends.
- School date
Secondary 1st Grading Cycle Ends
Secondary 1st grading cycle ends.
- No school
Campus Professional Learning Day
Students do not attend; campus professional learning day.
- School date
Secondary 2nd Grading Cycle Begins
Secondary 2nd grading cycle begins.
- School date
Elementary 1st Grading Cycle Ends
Elementary 1st grading cycle ends.
- No school
Fall Break
Students do not attend during fall break.
- School date
Elementary 2nd Grading Cycle Begins
Elementary 2nd grading cycle begins.
- No school
Campus Professional Learning Day
Students do not attend for campus professional learning.
- School date
Secondary 2nd Grading Cycle Ends
Secondary 2nd grading cycle ends.
- No school
Campus Professional Learning Day
Students do not attend for campus professional learning.
- School date
Secondary 3rd Grading Cycle Begins
Secondary 3rd grading cycle begins.
- No school
Holiday Break
Students do not attend during the holiday break.
- School date
Elementary 2nd Grading Cycle Ends
Elementary 2nd grading cycle ends.
- Early release
Early Dismissal and End of Fall Semester
Early dismissal; fall semester ends. Elementary 2nd and secondary 3rd grading cycles end.
- No school
Winter Break
Students do not attend during winter break.
- No school
Campus Day
Students do not attend; campus day. Secondary 3rd grading cycle ends.
- School date
Secondary 3rd Grading Cycle Ends
Secondary 3rd grading cycle ends.
- School date
First Day of Spring Semester
First day of the spring semester; students return. Elementary 3rd and secondary 4th grading cycles begin.
- No school
Holiday
Students do not attend; holiday for students and staff.
- School date
Secondary 4th Grading Cycle Ends
Secondary 4th grading cycle ends.
- No school
Campus Professional Learning Day
Students do not attend for campus professional learning.
- School date
Secondary 5th Grading Cycle Begins
Secondary 5th grading cycle begins.
- No school
Holiday
Students do not attend; holiday for students and staff.
- School date
Elementary 3rd Grading Cycle Ends
Elementary 3rd grading cycle ends.
- No school
Campus Professional Learning Day
Students do not attend for campus professional learning.
- No school
Spring Break
Students do not attend during spring break.
- School date
Elementary 4th Grading Cycle Begins
Elementary 4th grading cycle begins.
- School date
Secondary 5th Grading Cycle Ends
Secondary 5th grading cycle ends.
- School date
Secondary 6th Grading Cycle Begins
Secondary 6th grading cycle begins.
- No school
Holiday Break
Students do not attend during the holiday break.
- Early release
Early Dismissal and Last Day of School
Early dismissal and last day of school. Elementary 4th and secondary 6th grading cycles end.
Recognizable source. Easier calendar.
This page is an independent convenience copy. Katy ISD’s PDFs remain the source of truth, and dates can change after publication.
Free calendar updates
Add the Katy ISD calendar
Includes 2026–27 and 2027–28. We add each new school year after Katy ISD publishes it.