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UISD Calendar 2026-2027

UISD students start Aug. 12, 2026. Winter Break runs Dec. 17–Jan. 5, Spring Break is Mar. 8–12, and the last day is May 26, 2027.

UISD’s 2026-2027 calendar has 174 instructional days. Classes begin Aug. 12, 2026, and end May 26, 2027. Winter Break is Dec. 17–Jan. 5. Oct. 9 and Mar. 29 may become weather make-up days; high school students have early release Dec. 16 and May 26.

Official calendar checked Oct 6, 2026Official district source

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Official calendar

United ISD 2026–2027 Academic Calendar key dates

Key dates for United Independent School District 2026-2027 school calendar
Event	Date	Status
First Day of Classes	Aug 12, 2026	School opens
Labor Day Holiday	Sep 7, 2026	No classes
Professional Development / PLC Day - Bad-Weather Make-up Day	Oct 9, 2026	If needed
Columbus Day / Indigenous Peoples' Day Holiday	Oct 12, 2026	No classes
Thanksgiving Break	Nov 23, 2026 through Nov 27, 2026	No school
High School Early Release	Dec 16, 2026	Early dismissal
Winter Break	Dec 17, 2026 through Jan 5, 2027	No school
WBCA Friday Student Holiday	Feb 19, 2027	No classes
Presidents' Day	Feb 22, 2027	No classes
Spring Break	Mar 8, 2027 through Mar 12, 2027	No school
Easter Monday Holiday - Bad-Weather Make-up Day	Mar 29, 2027	If needed
Last Day of Classes	May 26, 2027	School closes

Month by month

United ISD 2026–2027 Academic Calendar monthly calendar

Highlighted dates follow the published calendar; grouped or inferred entries are labelled. Today is determined in Central Time (America/Chicago).

School Day
Weekend
Holiday (No School)
School Break
First / Last Day
Important Date

August 2026

United Independent School District calendar for August 2026
Mon	Tue	Wed	Thu	Fri	Sat	Sun
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3	4	5	6	7	8	9
10	11	12	13	14	15	16
17	18	19	20	21	22	23
24	25	26	27	28	29	30
31

Aug 12 First Day of Classes

September 2026

United Independent School District calendar for September 2026
Mon	Tue	Wed	Thu	Fri	Sat	Sun
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7	8	9	10	11	12	13
14	15	16	17	18	19	20
21	22	23	24	25	26	27
28	29	30

Sep 7 Labor Day Holiday

October 2026

United Independent School District calendar for October 2026
Mon	Tue	Wed	Thu	Fri	Sat	Sun
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5	6	7	8	9	10	11
12	13	14	15	16	17	18
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26	27	28	29	30	31

Oct 9 Professional Development / PLC Day - Bad-Weather Make-up Day
Oct 12 Columbus Day / Indigenous Peoples' Day Holiday

November 2026

United Independent School District calendar for November 2026
Mon	Tue	Wed	Thu	Fri	Sat	Sun
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2	3	4	5	6	7	8
9	10	11	12	13	14	15
16	17	18	19	20	21	22
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30

Nov 23–27 Thanksgiving Break

December 2026

United Independent School District calendar for December 2026
Mon	Tue	Wed	Thu	Fri	Sat	Sun
	1	2STAAR/EOC U.S. History and Biology — Dec 2	3STAAR/EOC Algebra I — Dec 3	4	5	6
7	8STAAR/EOC English I and English II — Dec 8	9	10	11	12	13
14	15	16High School Early Release — Dec 16. Only high schools are marked for early release; the PDF does not publish a dismissal time. • First Semester and Grading Periods End — Dec 16. The third six-week and second nine-week periods end with the 83-day first semester.	17Winter Break — Dec 17 – Jan 5. The district calendar page publishes one continuous student break through January 5; classes resume January 6.	18Winter Break — Dec 17 – Jan 5. The district calendar page publishes one continuous student break through January 5; classes resume January 6.	19Winter Break — Dec 17 – Jan 5. The district calendar page publishes one continuous student break through January 5; classes resume January 6.	20Winter Break — Dec 17 – Jan 5. The district calendar page publishes one continuous student break through January 5; classes resume January 6.
21Winter Break — Dec 17 – Jan 5. The district calendar page publishes one continuous student break through January 5; classes resume January 6.	22Winter Break — Dec 17 – Jan 5. The district calendar page publishes one continuous student break through January 5; classes resume January 6.	23Winter Break — Dec 17 – Jan 5. The district calendar page publishes one continuous student break through January 5; classes resume January 6.	24Winter Break — Dec 17 – Jan 5. The district calendar page publishes one continuous student break through January 5; classes resume January 6.	25Winter Break — Dec 17 – Jan 5. The district calendar page publishes one continuous student break through January 5; classes resume January 6.	26Winter Break — Dec 17 – Jan 5. The district calendar page publishes one continuous student break through January 5; classes resume January 6.	27Winter Break — Dec 17 – Jan 5. The district calendar page publishes one continuous student break through January 5; classes resume January 6.
28Winter Break — Dec 17 – Jan 5. The district calendar page publishes one continuous student break through January 5; classes resume January 6.	29Winter Break — Dec 17 – Jan 5. The district calendar page publishes one continuous student break through January 5; classes resume January 6.	30Winter Break — Dec 17 – Jan 5. The district calendar page publishes one continuous student break through January 5; classes resume January 6.	31Winter Break — Dec 17 – Jan 5. The district calendar page publishes one continuous student break through January 5; classes resume January 6.

Dec 17 – Jan 5 Winter Break

January 2027

United Independent School District calendar for January 2027
Mon	Tue	Wed	Thu	Fri	Sat	Sun
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4	5	6	7	8	9	10
11	12	13	14	15	16	17
18	19	20	21	22	23	24
25	26	27	28	29	30	31

February 2027

United Independent School District calendar for February 2027
Mon	Tue	Wed	Thu	Fri	Sat	Sun
1	2	3	4	5	6	7
8	9	10	11	12	13	14
15	16	17	18	19	20	21
22	23	24	25	26	27	28

Feb 19 WBCA Friday Student Holiday
Feb 22 Presidents' Day

March 2027

United Independent School District calendar for March 2027
Mon	Tue	Wed	Thu	Fri	Sat	Sun
1	2	3	4	5	6	7
8	9	10	11	12	13	14
15	16	17	18	19	20	21
22	23	24	25	26	27	28
29	30	31

Mar 8–12 Spring Break
Mar 26 Good Friday / Professional Development Day
Mar 29 Easter Monday Holiday - Bad-Weather Make-up Day

April 2027

United Independent School District calendar for April 2027
Mon	Tue	Wed	Thu	Fri	Sat	Sun
			1	2	3	4
5	6	7	8	9	10	11
12	13	14	15	16	17	18
19	20	21	22	23	24	25
26	27	28	29	30

Apr 30 Professional Development / PLC Day

May 2027

United Independent School District calendar for May 2027
Mon	Tue	Wed	Thu	Fri	Sat	Sun
					1	2
3	4	5	6	7	8	9
10	11	12	13	14	15	16
17	18	19	20	21	22	23
24	25	26	27	28	29	30
31

May 26 Last Day of Classes

Planning notes

United ISD 2026–2027 Academic Calendar calendar notes

School calendar overview

The 2026–2027 Academic Calendar school calendar begins Aug 12, 2026 and ends May 26, 2027.

Before you plan

This independent calendar reference is not operated by United ISD. Families should confirm test assignments, early-release times, transportation, graduation admission, weather make-up decisions, and campus-specific activities through official district or school messages.

Major school breaks

Thanksgiving BreakNov 23 – 27, 2026
Winter BreakDec 17, 2026 – Jan 5, 2027
WBCA Friday and Presidents' Day WeekendFeb 19 – 22, 2027
Spring BreakMar 8 – 12, 2027

School year by the numbers

Student attendance days: 174 days; Official figureThe PDF lists 83 first-semester days and 91 second-semester days.
Total no-school weekdays: 30 weekdays; Calculated from official datesCounted from published no-class events between the first and last student days. Weekends and shortened school days are excluded, and overlapping events count once.
Student no-school days: 2 days; Calculated from official datesCounts weekdays represented by NON_STUDENT_DAY events, including staff professional-learning and exchange days. Named holidays and official school breaks are excluded.
Listed early-release dates: 2 dates; Calculated from official datesCounted from official early-release entries; some dates apply only to the grades or campuses named in the calendar.
Longest listed break: 20 consecutive days; Calculated from official datesDec 17, 2026–Jan 5, 2027, including weekends. The stretch contains 14 confirmed no-school weekdays.
Long weekends: 5; Calculated from official datesCounts three- or four-day no-school stretches formed by a weekend plus one or two confirmed weekday closures. Longer school breaks are excluded.
Full-week breaks: 3 breaks; Calculated from official datesCounts continuous no-school stretches containing at least five confirmed weekdays without regular classes. Adjacent holidays and weekends remain part of the same break.

What to know

October 9 is normally a professional-development and PLC day but may become a required weather make-up day.
Winter Break includes the December 17 and January 5 teacher workdays, so students return January 6.
February 19 and February 22 create one continuous four-day student weekend.
March 29 is not stored as a guaranteed holiday because the PDF also reserves it for bad-weather make-up instruction.
Memorial Day falls after the May 26 last day and is therefore not stored as a school-year closure.

Editorial summary

UISD 2026-2027 calendar highlights

United ISD’s 2026-2027 school year has 174 instructional days. Students start Wednesday, Aug. 12, 2026, and the last day is Wednesday, May 26, 2027. Thanksgiving Break is Nov. 23–27, Winter Break runs Dec. 17–Jan. 5, and Spring Break is Mar. 8–12.

Two dates need extra attention: Oct. 9 and Mar. 29 are scheduled student days off but are also reserved as bad-weather make-up days. The Feb. 19 WBCA Friday student holiday and Feb. 22 Presidents’ Day create a four-day weekend. High school students have early release Dec. 16 and May 26; the published calendar does not list an early-release time.

UISD lists EOC testing on Dec. 2, 3 and 8, with additional STAAR and EOC testing dates in April. L. B. Johnson and John B. Alexander graduations are May 26; United South and United High graduations are May 27. Those four high school ceremonies are at SAMES Arena, while the Cherish Center ceremony will be held at SAC Auditorium.

Common questions

United ISD 2026–2027 Academic Calendar calendar FAQs

When is the first day of school for UISD in 2026-2027?

The first day of classes is Wednesday, August 12, 2026.

When is the last day of school for UISD in 2026-2027?

The final student day is Wednesday, May 26, 2027. High school students are released early that day.

How many instructional days are in UISD’s 2026-2027 school year?

The calendar lists 174 instructional days: 83 in the first semester and 91 in the second semester.

Do UISD students have school on Labor Day 2026?

No. UISD students are off Monday, September 7, 2026, for Labor Day.

Is October 9, 2026, a guaranteed day off for UISD students?

No. October 9 is normally used for professional development and PLC work, but it is also reserved as a bad-weather make-up day.

Do UISD students have school on October 12, 2026?

No. Monday, October 12, is the district's Columbus Day and Indigenous Peoples' Day holiday.

Does UISD have school on Election Day 2026?

Yes. Tuesday, November 3, is a regular instructional day on the 2026-2027 academic calendar.

When is UISD Thanksgiving Break in 2026?

Thanksgiving Break runs Monday, November 23, through Friday, November 27. Students return Monday, November 30.

When is UISD Winter Break in 2026-2027?

Winter Break runs continuously from Thursday, December 17, 2026, through Tuesday, January 5, 2027.

When do UISD students return after Winter Break in 2027?

Classes resume Wednesday, January 6, 2027, which is also the first day of the second semester.

Why are December 17 and January 5 included in UISD Winter Break?

December 17 and January 5 are teacher workdays. United ISD lists December 17–January 5 as one continuous student Winter Break, with classes resuming January 6.

Does UISD have a four-day weekend in February 2027?

Students are off February 19 for the WBCA Friday holiday and February 22 for Presidents' Day, creating a four-day weekend.

When is UISD’s WBCA Friday student holiday in 2027?

The WBCA Friday Student Holiday is February 19, 2027. Students are also off Monday, February 22, for Presidents’ Day.

Do UISD students have school on Presidents’ Day 2027?

No. UISD students are off Monday, February 22, 2027, for Presidents’ Day.

When is UISD Spring Break in 2027?

Spring Break is March 8-12, 2027. Students return to class Monday, March 15.

Do UISD students have school on Good Friday 2027?

No. Friday, March 26, is a student day off for professional development. United ISD’s calendar page also identifies it as Good Friday.

Is Easter Monday 2027 a guaranteed day off for UISD students?

No. Monday, March 29, is scheduled as Easter Monday but is also reserved as a bad-weather make-up day.

Do UISD students have school on April 30, 2027?

No. April 30 is a professional-development and PLC day, so students do not attend classes.

When are UISD high school early-release days in 2026-2027?

High school students have early release December 16, 2026, and May 26, 2027. The academic calendar does not publish dismissal times.

Are UISD elementary and middle school early-release dates published for 2026-2027?

No elementary or middle school early-release dates are marked on the 2026-2027 academic calendar. Check your campus communications for any school-specific schedule changes.

What are the UISD nine-week grading periods for 2026-2027?

They run August 12-October 8, October 13-December 16, January 6-March 19, and March 22-May 26.

When do UISD six-week grading periods end in 2026-2027?

The six periods end September 18, October 30, December 16, February 18, April 9, and May 26.

When are UISD STAAR/EOC tests in December 2026?

U.S. History and Biology are scheduled for Dec. 2. Algebra I is scheduled for Dec. 3, and English I and English II are scheduled for Dec. 8.

What STAAR dates are listed for UISD in April 2027?

The calendar lists grade- and subject-specific testing on April 7, 8, 13, 14, 20, 21, 22, 27 and 28. April 13 includes English I and II EOC exams; April 21 includes Biology and U.S. History EOC exams; April 28 includes Algebra I.

Do all UISD students test on every listed STAAR date?

No. Each date applies only to the grades, subjects, or end-of-course groups named on the calendar.

When is UISD L. B. Johnson High School graduation in 2027?

L. B. Johnson High School graduation is Wednesday, May 26, 2027, at 9:00 a.m. at SAMES Arena.

When is UISD John B. Alexander High School graduation in 2027?

John B. Alexander High School graduation is Wednesday, May 26, 2027, at 2:00 p.m. at SAMES Arena.

When is UISD United South High School graduation in 2027?

United South High School graduation is Thursday, May 27, 2027, at 9:00 a.m. at SAMES Arena.

When is UISD United High School graduation in 2027?

United High School graduation is Thursday, May 27, 2027, at 2:00 p.m. at SAMES Arena.

Does UISD have school on Memorial Day 2027?

No. UISD’s 2026-2027 school year ends May 26, five days before Memorial Day on May 31.

Which dates are UISD bad-weather make-up days in 2026-2027?

Oct. 9, 2026, and Mar. 29, 2027, are reserved as bad-weather make-up days. Both are scheduled as student days off unless UISD activates them to replace lost instructional time.

Where can I find the official UISD 2026-2027 calendar?

United ISD publishes its current 2026-2027 calendar on the district’s Academic Calendar page, with both English and Spanish versions available.

Is the UISD 2026-2027 calendar available in Spanish?

Yes. United ISD’s Academic Calendar page links English and Spanish versions of the 2026-2027 calendar.

Where is the UISD Cherish Center graduation held?

United ISD’s calendar page says the Cherish Center graduation ceremony will be held at SAC Auditorium. The page does not list a date or time.

Reference

United ISD 2026–2027 Academic Calendar resources

United ISD official website

District news, schools, enrollment, transportation, meals, and family resources.

View official source →

United ISD Academic Calendar page

Official English downloads, important dates, and graduation details.

View official source →

Official 2026-2027 English calendar PDF

The revised one-page calendar with holidays, grading periods, testing, early release, make-up days, and graduations.

View official source →

Source and scope

About the United ISD 2026–2027 Academic Calendar calendar

Data source

This page uses United ISD’s official 2026-2027 English academic calendar PDF, revised June 17, 2026, the calendar image linked on the same district page, and the district’s Academic Calendar page. The district page confirms the first and last days, continuous Winter Break, named holidays, and graduation schedule.

How dates are handled

Only events that directly affect students are stored. Pre-year employee orientation, staff preparation before the first day, and the May 27 teacher workday are excluded. Testing and graduations remain because they affect specific students and families. December EOC dates were checked in both the current English PDF and calendar image: U.S. History and Biology are December 2, Algebra I is December 3, and English I and II are December 8. The Cherish Center venue is included in prose and FAQs only, because no ceremony date or time is published on the calendar page.

Updates

October 9 and March 29 are conditional attendance dates: the academic calendar marks them with the bad-weather make-up symbol. The baseline no-school flags describe the current schedule, not a guarantee that students will never attend. Check district announcements about use of either date.

Disclaimer

Read the full methodology

United ISD 2026–2027 Academic Calendar sources & verification

Source confirmed

District: United Independent School District
United ISD 2026-2027 Academic Calendar: View official source
United ISD Academic Calendar: View official source
United ISD 2026-2027 Academic Calendar image: View official source
Source last checked: Oct 6, 2026
Revision count: 0

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Mon	Tue	Wed	Thu	Fri	Sat	Sun
					1	2
3	4	5	6	7	8	9
10	11	12First Day of Classes — Aug 12	13	14	15	16
17	18	19	20	21	22	23
24	25	26	27	28	29	30
31

Mon	Tue	Wed	Thu	Fri	Sat	Sun
	1	2	3	4	5	6
7Labor Day Holiday — Sep 7	8	9	10	11	12	13
14	15	16	17	18First Six-Week Grading Period Ends — Sep 18. The first six-week period contains 27 instructional days.	19	20
21	22	23	24	25	26	27
28	29	30

Mon	Tue	Wed	Thu	Fri	Sat	Sun
			1	2	3	4
5	6	7	8First Nine-Week Grading Period Ends — Oct 8. The first nine-week period contains 41 instructional days.	9Professional Development / PLC Day - Bad-Weather Make-up Day — Oct 9. Students are normally off, but the district may activate this date to replace instruction lost to bad weather.	10	11
12Columbus Day / Indigenous Peoples' Day Holiday — Oct 12	13	14	15	16	17	18
19	20	21	22	23	24	25
26	27	28	29	30Second Six-Week Grading Period Ends — Oct 30. The second six-week period contains 28 instructional days.	31

Mon	Tue	Wed	Thu	Fri	Sat	Sun
						1
2	3	4	5	6	7	8
9	10	11	12	13	14	15
16	17	18	19	20	21	22
23Thanksgiving Break — Nov 23–27	24Thanksgiving Break — Nov 23–27	25Thanksgiving Break — Nov 23–27	26Thanksgiving Break — Nov 23–27	27Thanksgiving Break — Nov 23–27	28	29
30

Mon	Tue	Wed	Thu	Fri	Sat	Sun
				1Winter Break — Dec 17 – Jan 5. The district calendar page publishes one continuous student break through January 5; classes resume January 6.	2Winter Break — Dec 17 – Jan 5. The district calendar page publishes one continuous student break through January 5; classes resume January 6.	3Winter Break — Dec 17 – Jan 5. The district calendar page publishes one continuous student break through January 5; classes resume January 6.
4Winter Break — Dec 17 – Jan 5. The district calendar page publishes one continuous student break through January 5; classes resume January 6.	5Winter Break — Dec 17 – Jan 5. The district calendar page publishes one continuous student break through January 5; classes resume January 6.	6Second Semester Begins — Jan 6	7	8	9	10
11	12	13	14	15	16	17
18	19	20	21	22	23	24
25	26	27	28	29	30	31

Mon	Tue	Wed	Thu	Fri	Sat	Sun
1	2	3	4	5	6	7
8	9	10	11	12	13	14
15	16	17	18Fourth Six-Week Grading Period Ends — Feb 18. The fourth six-week period contains 32 instructional days.	19WBCA Friday Student Holiday — Feb 19	20	21
22Presidents' Day — Feb 22	23	24	25	26	27	28

Mon	Tue	Wed	Thu	Fri	Sat	Sun
1	2	3	4	5	6	7
8Spring Break — Mar 8–12	9Spring Break — Mar 8–12	10Spring Break — Mar 8–12	11Spring Break — Mar 8–12	12Spring Break — Mar 8–12	13	14
15	16	17	18	19Third Nine-Week Grading Period Ends — Mar 19. The third nine-week period contains 46 instructional days.	20	21
22	23	24	25	26Good Friday / Professional Development Day — Mar 26. Students do not attend. The academic calendar marks professional development, and the district page also names Good Friday.	27	28
29Easter Monday Holiday - Bad-Weather Make-up Day — Mar 29. The date is scheduled as a holiday but may become a required attendance day after a weather closure.	30	31

Mon	Tue	Wed	Thu	Fri	Sat	Sun
			1	2	3	4
5	6	7STAAR Grade 5 Reading — Apr 7	8STAAR Grades 3 and 4 Reading — Apr 8	9Fifth Six-Week Grading Period Ends — Apr 9. The fifth six-week period contains 27 instructional days.	10	11
12	13STAAR/EOC English I & II and STAAR Grades 6-8 ELAR — Apr 13	14STAAR Grade 8 Science — Apr 14	15	16	17	18
19	20STAAR Grade 5 Science — Apr 20	21STAAR/EOC Biology and U.S. History; STAAR Grade 5 Math and Grade 8 Social Studies — Apr 21	22STAAR Grades 3 and 4 Math — Apr 22	23	24	25
26	27STAAR Grades 6 and 7 Math — Apr 27	28STAAR Grade 8 Math and STAAR/EOC Algebra I — Apr 28	29	30Professional Development / PLC Day — Apr 30

Mon	Tue	Wed	Thu	Fri	Sat	Sun
					1	2
3	4	5	6	7	8	9
10	11	12	13	14	15	16
17	18	19	20	21	22	23
24	25	26Last Day of Classes — May 26 • Final Six-Week and Nine-Week Grading Periods End — May 26. The sixth six-week and fourth nine-week periods close on the last day. • High School Early Release — May 26. High school students are released early on the last day; the PDF does not publish a dismissal time. • L. B. Johnson High Graduation - 9:00 a.m. — May 26. The ceremony is scheduled at SAMES Arena. • John B. Alexander High Graduation - 2:00 p.m. — May 26. The ceremony is scheduled at SAMES Arena.	27United South High Graduation - 9:00 a.m. — May 27. The ceremony is scheduled at SAMES Arena. • United High Graduation - 2:00 p.m. — May 27. The ceremony is scheduled at SAMES Arena.	28	29	30
31

United ISD 2026–2027 Academic Calendar key dates

United ISD 2026–2027 Academic Calendar monthly calendar

August 2026

September 2026

October 2026

November 2026

December 2026

January 2027

February 2027

March 2027

April 2027

May 2027

United ISD 2026–2027 Academic Calendar calendar notes

School calendar overview

Before you plan

Major school breaks

School year by the numbers

What to know

UISD 2026-2027 calendar highlights

United ISD 2026–2027 Academic Calendar calendar FAQs

Related school calendars

Nearby school calendars

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Northside Independent School District

Katy Independent School District

Fort Bend Independent School District

United ISD 2026–2027 Academic Calendar resources

United ISD official website

United ISD Academic Calendar page

Official 2026-2027 English calendar PDF

About the United ISD 2026–2027 Academic Calendar calendar

Data source

How dates are handled

Updates

Disclaimer

United ISD 2026–2027 Academic Calendar sources & verification