Costa Mesa HighSchool Calendar
2025-26 Academic Calendar
Key dates, holidays, and events for Costa Mesa High.
School at a Glance
Upcoming events & academic holidays2025-26 Academic Year
APR
8
Spring Recess
APR
8
Late Start Wednesday
APR
9
Spring Recess
APR
10
Spring Recess
APR
14
ELPAC Testing
APR
14
LCAP Community Forum
APR
15
Modified Day/Early Dismissal
APR
15
Late Start Wednesday
APR
15
ELPAC Testing
APR
16
ELPAC Testing
APR
16
SBAC Testing Grade 11 - Day 1
APR
17
SBAC Testing Grade 11- Day 2
APR
20
SBAC Testing
APR
20
CAST Testing
APR
21
SBAC Testing
APR
21
Board of Education Meeting
APR
22
Modified Day/Early Dismissal
APR
22
Late Start Wednesday
APR
22
SBAC Testing
APR
23
Early Dismissal Open House
APR
23
SBAC Testing
APR
23
Open House
APR
24
SBAC Testing
APR
27
SBAC Testing
APR
27
CAASP Testing 3-6
APR
28
SBAC Testing
APR
28
CAASP Testing 3-6
APR
29
Modified Day/Early Dismissal
APR
29
Late Start Wednesday
APR
29
SBAC Testing
APR
29
CAASP Testing 3-6
APR
30
Early Dismissal - Modified Day
APR
30
SBAC Testing
APR
30
CAASP Testing 3-6
APR
30
Parent Education Series Focusing on Special Education
APR
30
Open House
APR
30
Senior Picture Day
MAY
1
SBAC Testing
MAY
1
CAASP Testing 3-6
MAY
1
Senior Commitment Day
Partner TipEarly dismissal days and parent-teacher conferences are often updated 2 weeks in advance. Check back regularly to stay ahead of the schedule!