Irvine Unified School District Calendar 2026-2027

Students in Irvine Unified School District (IUSD) start the 2026-2027 school year on Tuesday, August 18, 2026 and finish on Friday, June 4, 2027. In between are three breaks: Thanksgiving break (Nov 23-27), winter break (December 21, 2026 to January 1) and spring break (Mar 29 to Apr 2), plus eight other weekdays without school.

Irvine Unified School District publishes 2 calendars for 2026-2027: Instructional Calendar - Traditional, Instructional Calendar - Year Round (IUSD year-round schools, PK-8). The instructional calendar - traditional is shown first; switch with the buttons below.

Checking today…

First dayTue, Aug 18, 2026

Last dayFri, Jun 4, 2027

Spring breakMar 29 to Apr 2, 2027back Mon, Apr 5, 2027

Winter breakDec 21 to Jan 1back Mon, Jan 4, 2027

All 2026-2027 dates: Instructional Calendar - Traditional

180 student days (district count) · Weekends are not listed. Past dates are dimmed.

Irvine Unified School District 2026-2027 Instructional Calendar - Traditional dates
Date	Event
Tue, Aug 18, 2026	First day of school
Mon, Sep 7, 2026	Labor Day
Mon, Oct 12, 2026	Teacher workday, no school for students
Wed, Nov 11, 2026	Veteran's Day Observance
Mon, Nov 23 to Fri, Nov 27, 2026	Thanksgiving Holiday · 5 school days off
Mon, Dec 21, 2026 to Fri, Jan 1, 2027	Winter Recess · 10 school days off
Fri, Jan 15, 2027	No school for grades 9-12 (Teacher Work Day/Student Holiday (9-12)); other grades attend
Mon, Jan 18, 2027	Martin Luther King Jr. Day
Fri, Feb 12, 2027	Teacher workday, no school for students
Mon, Feb 15, 2027	Presidents' Day
Mon, Mar 1, 2027	Teacher/Student Holiday (PK-12)
Mon, Mar 29 to Fri, Apr 2, 2027	Spring Recess · 5 school days off
Mon, May 31, 2027	Memorial Day
Fri, Jun 4, 2027	Last day of school

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Verified against Irvine Unified School District’s official 2026-2027 calendar on September 26, 2026 (board-approved version). Confidence: High.

Source: Irvine Unified School District Instructional Calendar - Traditional 2026-27 (dated 5/20/2025) (PDF) · district calendar page

Note: IUSD's March 16, 2026 article on the 2027-28 calendar survey refers to the approved 2026-27 traditional and year-round calendars; the file is named 'Final'. Break names come from the district's listed 'District Calendar 2026-27' on the same page, which agrees with this grid. Oct. 12 and Feb. 12 are staff development days with no school for students. Grades 9-12 also have no school on Friday, Jan. 15 (Teacher Work Day/Student Holiday, traditional schools only); PK-8 students attend that day. PK-8 schools instead have one floating teacher work day in October whose date is not on the district calendar (check with your school). Both groups have 180 instructional days (the grid's monthly counts: October 21 for high school and 20 for PK-8, January 18 for high school and 19 for PK-8). Lincoln's Day is observed on Nov. 25, inside Thanksgiving week. Juneteenth (June 18) falls after the last day of school.

Checking today…

First dayMon, Jul 20, 2026

Last dayFri, Jun 4, 2027

Spring breakMar 22 to Apr 2, 2027back Mon, Apr 5, 2027

Winter breakDec 21 to Jan 1back Mon, Jan 4, 2027

All 2026-2027 dates: Instructional Calendar - Year Round (IUSD year-round schools, PK-8)

180 student days (district count) · Weekends are not listed. Past dates are dimmed.

Irvine Unified School District 2026-2027 Instructional Calendar - Year Round (IUSD year-round schools, PK-8) dates
Date	Event
Mon, Jul 20, 2026	First day of school
Fri, Aug 14, 2026	Teacher workday, no school for students
Mon, Sep 7, 2026	Labor Day
Mon, Sep 21 to Fri, Oct 9, 2026	Year Round Fall Break · 15 school days off
Mon, Oct 12, 2026	Teacher workday, no school for students
Wed, Nov 11, 2026	Veteran's Day Observance
Mon, Nov 23 to Fri, Nov 27, 2026	Thanksgiving Holiday · 5 school days off
Mon, Dec 21, 2026 to Fri, Jan 1, 2027	Winter Recess · 10 school days off
Mon, Jan 18, 2027	Martin Luther King Jr. Day
Fri, Feb 12, 2027	Teacher workday, no school for students
Mon, Feb 15, 2027	Presidents' Day
Mon, Mar 1, 2027	Teacher/Student Holiday (PK-12)
Mon, Mar 22 to Fri, Apr 2, 2027	Spring Recess · 10 school days off
Mon, May 31, 2027	Memorial Day
Fri, Jun 4, 2027	Last day of school

Download calendar (.ics) Add to Google Calendar Apple / Outlook

Subscribing keeps your calendar in sync: if the district changes a date, we update the feed.

Verified against Irvine Unified School District’s official 2026-2027 calendar on September 26, 2026 (board-approved version). Confidence: High.

Source: Irvine Unified School District Instructional Calendar - Year Round 2026-27 (dated 5/20/2025) (PDF) · district calendar page

Note: Calendar for IUSD's year-round schools (it states instructional days for PK-8 only); the district calendar page does not list which schools follow it. Approved together with the traditional calendar (see the district's March 16, 2026 article); break names come from the listed 'District Calendar 2026-27'. Year-round students start Monday, July 20 (teacher workdays July 16-17). The Year Round Fall Break runs three weeks (Sept. 21 - Oct. 9) and Oct. 12 is a staff development day, so students return Tuesday, Oct. 13. Spring Recess for year-round schools is two weeks (March 22 - April 2). Aug. 14 and Feb. 12 are also staff development days with no school for students. PK-8 schools have one floating teacher work day in October whose date is not on the district calendar (check with your school); the stated 180 days account for it, so the computed count is one day higher. Juneteenth (June 18) falls after the last day of school.

Break details

Nearby districts

District	First day	Spring break	Last day
Irvine Unified School District	Aug 18	Mar 29 to Apr 2	Jun 4
Capistrano Unified School District	Aug 18	Apr 5-9	Jun 3
Corona-Norco Unified School District	Aug 11	Mar 29 to Apr 2	Jun 4
Long Beach Unified School District	Aug 25	Apr 5-9	Jun 10
Riverside Unified School District	Aug 10	Mar 29 to Apr 2	May 27
Los Angeles Unified School District	Aug 12	Mar 22-26	Jun 4
San Bernardino City Unified School District	Aug 3	Mar 22 to Apr 2	Jun 3

Frequently asked questions

When is spring break 2027 for Irvine Unified School District?

Spring break is Mon, Mar 29 to Fri, Apr 2, 2027. The last day of school before it is Friday, March 26, 2027, and students return Monday, April 5, 2027.

When does the 2026-2027 school year start and end for Irvine Unified School District?

The first day of school is Tuesday, August 18, 2026 and the last day is Friday, June 4, 2027, 180 student days in total.

Are there days off for only some grades in Irvine Unified School District?

Yes: Fri, Jan 15, 2027 (no school for grades 9-12, Teacher Work Day/Student Holiday (9-12)). The other grades have school on those days.

When is winter break 2026 for Irvine Unified School District?

Winter break runs Mon, Dec 21, 2026 to Fri, Jan 1, 2027. Counting weekends, students are off 16 days in a row and go back Monday, January 4, 2027.

How long is Thanksgiving break in Irvine Unified School District?

5 school days: Mon, Nov 23 to Fri, Nov 27, 2026.

Where do these Irvine Unified School District dates come from?

Source: the district's “Irvine Unified School District Instructional Calendar - Traditional 2026-27 (dated 5/20/2025)”, checked on September 26, 2026. We link the document on this page; if the district changes it, we update the dates and the “verified” date.

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About the district: Irvine Unified School District is based in Irvine, California (Orange County), with about 38,028 students in 45 schools (NCES Common Core of Data, 2024-25). District website: iusd.org. See all California school calendars.