2026-27 Academic Calendar
Key dates, holidays, and events for Seguin High School.
School at a Glance
Upcoming events & academic holidaysAUG
19
First Day of School
SEP
7
Labor Day
SEP
28
Staff Development/Student Holiday
OCT
9
District Holiday
OCT
12
District Holiday
NOV
23
Thanksgiving Break (Nov 23-27)
DEC
18
Early Release
DEC
21
Winter Break (Dec 21-31)
JAN
1
Winter Break continues
JAN
4
Staff Development/Student Holiday (Jan 4-5)
JAN
18
MLK Jr. Day
FEB
12
Staff Development/Student Holiday
FEB
15
Presidents' Day
MAR
8
Spring Break (Mar 8-12)
MAR
26
Good Friday
MAR
29
Easter Monday
APR
30
District Holiday
MAY
27
Early Release - Last Day of School
MAY
28
Graduation
MAY
28
Staff Development/Student Holiday
MAY
31
District Holiday
Standardized Test Dates
Upcoming national, state, and school calendar dates that affect students at Seguin High School.
National Tests
August 1, 2026 – November 30, 2026
ISEE — Fall Testing Season
August 3, 2026 – June 30, 2027
SSAT — Flex Testing
August 22, 2026
SAT — National
August 28, 2026
SAT — National
September 1, 2026
ACT — National
September 1, 2026
SAT — National
State Assessments
November 30, 2026 – December 11, 2026
STAAR — Fall EOC
February 15, 2027 – March 26, 2027
TELPAS
February 15, 2027 – March 26, 2027
TELPAS Alternate
March 15, 2027 – April 16, 2027
STAAR — Alternate 2
March 15, 2027 – April 16, 2027
STAAR Alternate 2
April 5, 2027 – April 16, 2027
STAAR — Reading Language Arts and English EOC