Sunnyside HighSchool Calendar
2026-27 Academic Calendar
Key dates, holidays, and events for Sunnyside High.
School at a Glance
Upcoming events & academic holidays2026-27 Academic Year
AUG
17
School Begins
SEP
7
No School
Labor Day
OCT
12
District Buy Back Day
NOV
11
No School
Veteran’s Day
DEC
21
No School
Winter Break Begins
JAN
1
No School
New Year’s Day
JAN
8
No School
Winter Break Ends
JAN
18
No School
M.L. King, Jr. Day
FEB
8
No School
Lincoln’s Birthday (Observed)
FEB
12
No School
Lincoln’s Birthday
FEB
15
No School
Presidents’ Day
MAR
8
District Buy Back Day
MAR
29
No School
Spring Break Ends
MAY
31
No School
Memorial Day
JUN
10
Last Day of School
JUN
18
No School
Juneteenth (Observed)
Calendar TipEarly dismissal days and parent-teacher conferences are often updated 2 weeks in advance. Check back regularly to stay ahead of the schedule!
Standardized Test Dates
Upcoming national, state, and school calendar dates that affect students at Sunnyside High.
National Tests
August 1, 2026 – November 30, 2026
ISEE — Fall Testing Season
Testing window
August 3, 2026 – June 30, 2027
SSAT — Flex Testing
Testing window
August 22, 2026
SAT — National
Test date
August 28, 2026
SAT — National
Registration deadline
September 1, 2026
ACT — National
Late registration deadline
September 1, 2026
SAT — National
Late registration deadline
State Assessments
March 1, 2027 – June 30, 2027
CAASPP — Statewide Window
Testing window
CA
School Milestones
October 1, 2026 – October 15, 2026
Private School Affidavit Filing Window
Other
CA