Irvine Unified School District First Day of School 2027 Mark Wednesday, August 18, 2027: that is when Irvine Unified School District students go back to school in 2027, per the district’s 2027-2028 calendar.
First day 2027 Wed, Aug 18, 2027
Last day this year Fri, Jun 4, 2027
Summer break 74 days
Last day 2028 Fri, Jun 2, 2028
Verified against Irvine Unified School District’s official 2027-2028 calendar on September 26, 2026 . Confidence: High .
Source: Irvine Unified School District Instructional Calendar - Traditional 2027-28 (dated 6/22/2026) (PDF) · district calendar page
We fetch this document again every day and compare it with the version we verified; if the district changes it, the dates here are read again.
Note: Linked on the district calendar page as the 2027-28 district calendar (grid dated June 22, 2026). The version posted for the spring 2026 calendar survey was marked DRAFT; this one is not, but neither the document nor the page states an approval. Break names come from the listed 'District Calendar 2027-28' on the same page, which agrees with this grid. Oct. 18 and March 6 are staff development days with no school for students. Grades 9-12 also have no school on Friday, Jan. 14, 2028 (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 20 for high school and 19 for PK-8, January 19 for high school and 20 for PK-8). Lincoln's Day is observed on Nov. 24, inside Thanksgiving week. Juneteenth (June 19) falls after the last day of school.
Frequently asked questions What is the first day of school for Irvine Unified School District in 2027? Wednesday, August 18, 2027.
How long is summer break in Irvine Unified School District? 74 days: the 2026-2027 school year ends Friday, June 4, 2027 and the next one starts Wednesday, August 18, 2027.
When does the 2027-2028 school year end for Irvine Unified School District? Friday, June 2, 2028.
See a wrong date? Tell us We check every report against the district's official calendar, usually within two days. You are reporting a date for Irvine Unified School District.