Acalanes Union High School District School Calendar 2026-2027

At a Glance

AUHUSD is a suburban school district with 5 schools. For the 2026-2027 school year, classes begin August 11 and end May 27. Acalanes Union High School District was founded in 1936 and serves students across Lafayette, Moraga, Orinda, and Walnut Creek in Contra Costa County. This calendar includes 2 professional development days — useful to know when planning childcare.

Also known as AUHUSD.

Schools in Acalanes Union High School District

Acalanes High (High)
Campolindo High (High)
Las Lomas High (High)
Miramonte High (High)
Acalanes Center for Independent Study (High)

Acalanes Union High School District 2026-2027 School Calendar

All schools

2026-07-03 — 4th of July Holiday (closed)
2026-08-05 to 2026-08-06 — Staff Development Day (closed)
2026-08-07 — Institute Day (closed)
2026-08-10 — Optional Teacher Work Day* (closed)
2026-08-10 — Walk-thru Registration Day (closed)
2026-08-11 — First Day of School (in session)
2026-08-27 — Back to School Night (in session)
2026-09-07 — Labor Day (closed)
2026-10-09 — End of 1st Quarter (in session)
2026-10-12 — Non School Day (closed)
2026-11-11 — Veteran's Day (closed)
2026-11-23 to 2026-11-27 — Thanksgiving Break (closed)
2026-12-15 to 2026-12-18 — 1st Semester Finals (in session)
2026-12-18 — End of First Semester (in session)
2026-12-21 to 2027-01-04 — Winter Break (closed)
2027-01-04 — Optional Teacher Work Day* (non-school day) (closed)
2027-01-05 — 1st day of 2nd Semester (in session)
2027-01-18 — Martin Luther King, Jr. Day (closed)
2027-01-21 — Open House (in session)
2027-02-12 to 2027-02-15 — Presidents' Day Weekend (closed)
2027-02-12 — Potential Weather Day (closed)
2027-03-12 — End of 3rd Quarter (in session)
2027-03-15 — Staff Development Day (non school day) (closed)
2027-04-05 to 2027-04-09 — Spring Break (closed)
2027-05-24 to 2027-05-27 — 2nd Semester Finals (in session)
2027-05-27 — End of 2nd Semester (in session)
2027-05-27 — Last Day of School (in session)
2027-05-28 — Graduation (in session)
2027-05-28 — Optional Teacher Workday* (closed)
2027-05-31 — Memorial Day (closed)
2027-06-01 — Optional Teacher Workday* (closed)
2027-06-18 — Juneteenth public holiday (closed)