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Regional School Unit 21 - Kennebunk, Kennebunkport, and Arundel ME Calendar 26-27

  • 2026/27
  • Maine
  • 4 teacher days

The Regional School Unit 21 - Kennebunk, Kennebunkport, and Arundel 2026–27 school year runs from Aug 31, 2026 to Jun 14, 2027. Breaks include Thanksgiving break Nov 26-27, winter break Dec 23-31, and spring break Apr 19-23. The table below lists all teacher workdays, early release days, and holidays. Download the PDF calendar, or read the FAQs.

School year starts Mon, Aug 31, 2026 First Student Day (Grades 1-9 and SRTC/BRTC)
School year ends Mon, Jun 14, 2027 Last Student Day (Half Day)
Next key date Mon, Aug 31, 2026 Counts down once the school year is under way

Regional School Unit 21 - Kennebunk, Kennebunkport, and Arundel 2026-27 calendar

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Regional School Unit 21 - Kennebunk, Kennebunkport, and Arundel school year calendar

Every published date for 2026–27, colour-coded by what happens that day.

  • First day of school
  • Last day of school
  • Holiday - school closed
  • Break / vacation
  • Teacher / professional day
  • Early release / half day
  • Parent-teacher conference
  • Graduation
  • Other scheduled date

August 2026

  • Aug 24-25, 2026 — New Instructional Staff Orientation
  • Aug 26-28, 2026 — Professional Development Days
  • Aug 31, 2026 — First Student Day (Grades 1-9 and SRTC/BRTC)

September 2026

  • Sep 1, 2026 — First Student Day (Grades 10-12)
  • Sep 2, 2026 — First Student Day (Pre-K and Kindergarten)
  • Sep 4, 2026 — Vacation (No School)
  • Sep 7, 2026 — Labor Day Observed (No School)

October 2026

  • Oct 9, 2026 — Professional Development Day
  • Oct 12, 2026 — Indigenous Peoples' Day (No School)
  • Oct 30, 2026 — Quarter End

November 2026

  • Nov 11, 2026 — Veterans Day Observed (No School)
  • Nov 25, 2026 — Parent/Teacher Conference (Teachers Only)
  • Nov 26-27, 2026 — Thanksgiving Vacation (No School)
  • Nov 27, 2026 — Trimester End

December 2026

  • Dec 23-31, 2026 — Winter Break / Vacation (No School)

January 2027

  • Jan 1, 2027 — New Year's Day Holiday (No School)
  • Jan 4, 2027 — School Resumes
  • Jan 18, 2027 — Martin Luther King Jr. Day (No School)
  • Jan 22, 2027 — Quarter End

February 2027

  • Feb 15-19, 2027 — Winter Vacation (No School)

March 2027

  • Mar 12, 2027 — Professional Development Day
  • Mar 12, 2027 — Trimester End

April 2027

  • Apr 7, 2027 — Late Start / Early Release Day
  • Apr 16, 2027 — Parent/Teacher Conference (Teachers Only)
  • Apr 19-23, 2027 — Spring Break / Vacation (No School)
  • Apr 2, 2027 — Quarter End

May 2027

  • May 3-4, 2027 — Pre-K Screening (No School for Pre-K Students)
  • May 5, 2027 — Late Start / Early Release Day
  • May 31, 2027 — Memorial Day (No School)

June 2027

  • Jun 2, 2027 — Late Start / Early Release Day
  • Jun 13, 2027 — Anticipated KHS Graduation
  • Jun 14, 2027 — Last Student Day (Half Day)
  • Jun 18, 2027 — Juneteenth (No School)
  • Jun 14, 2027 — Quarter End

July 2027

Regional School Unit 21 - Kennebunk, Kennebunkport, and Arundel teacher and staff days 2026/27

Students normally stay home on these days. Confirm with the district before making plans.

  • Aug 24-25, 2026 New Instructional Staff Orientation District source
  • Aug 26-28, 2026 Professional Development Days District source
  • Oct 9, 2026 Professional Development Day District source
  • Mar 12, 2027 Professional Development Day District source

Regional School Unit 21 - Kennebunk, Kennebunkport, and Arundel breaks and holidays

School is closed to students on these dates.

  • Sep 4, 2026 Vacation (No School) Break
  • Sep 7, 2026 Labor Day Observed (No School) Holiday
  • Oct 12, 2026 Indigenous Peoples' Day (No School) Holiday
  • Nov 11, 2026 Veterans Day Observed (No School) Holiday
  • Nov 26-27, 2026 Thanksgiving Vacation (No School) Break
  • Dec 23-31, 2026 Winter Break / Vacation (No School) Break
  • Jan 1, 2027 New Year's Day Holiday (No School) Holiday
  • Jan 18, 2027 Martin Luther King Jr. Day (No School) Holiday
  • Feb 15-19, 2027 Winter Vacation (No School) Break
  • Apr 19-23, 2027 Spring Break / Vacation (No School) Break
  • May 3-4, 2027 Pre-K Screening (No School for Pre-K Students) Holiday
  • May 31, 2027 Memorial Day (No School) Holiday
  • Jun 18, 2027 Juneteenth (No School) Holiday

Your checked 2026/27 Regional School Unit 21 - Kennebunk, Kennebunkport, and Arundel planning calendar

How these dates are put together, and what to double-check before you book anything.

Useful now35 published dates for the 2026–27 school year, laid out month by month.
CheckedTaken from the district’s own published calendar, not retyped from memory.
Kept currentLast updated June 20, 2026.
Full term dates table

Regional School Unit 21 - Kennebunk, Kennebunkport, and Arundel 2026–27 calendar dates

DateEvent
Aug 24-25, 2026New Instructional Staff Orientation
Aug 26-28, 2026Professional Development Days
Aug 31, 2026First Student Day (Grades 1-9 and SRTC/BRTC)
Sep 1, 2026First Student Day (Grades 10-12)
Sep 2, 2026First Student Day (Pre-K and Kindergarten)
Sep 4, 2026Vacation (No School)
Sep 7, 2026Labor Day Observed (No School)
Oct 9, 2026Professional Development Day
Oct 12, 2026Indigenous Peoples' Day (No School)
Oct 30, 2026Quarter End
Nov 11, 2026Veterans Day Observed (No School)
Nov 25, 2026Parent/Teacher Conference (Teachers Only)
Nov 26-27, 2026Thanksgiving Vacation (No School)
Nov 27, 2026Trimester End
Dec 23-31, 2026Winter Break / Vacation (No School)
Jan 1, 2027New Year's Day Holiday (No School)
Jan 4, 2027School Resumes
Jan 18, 2027Martin Luther King Jr. Day (No School)
Jan 22, 2027Quarter End
Feb 15-19, 2027Winter Vacation (No School)
Mar 12, 2027Professional Development Day
Mar 12, 2027Trimester End
Apr 7, 2027Late Start / Early Release Day
Apr 16, 2027Parent/Teacher Conference (Teachers Only)
Apr 19-23, 2027Spring Break / Vacation (No School)
Apr 2, 2027Quarter End
May 3-4, 2027Pre-K Screening (No School for Pre-K Students)
May 5, 2027Late Start / Early Release Day
May 31, 2027Memorial Day (No School)
Jun 2, 2027Late Start / Early Release Day
Jun 13, 2027Anticipated KHS Graduation
Jun 14, 2027Last Student Day (Half Day)
Jun 18, 2027Juneteenth (No School)
Jun 14, 2027Quarter End
Jun 14, 2027Trimester End

Regional School Unit 21 - Kennebunk, Kennebunkport, and Arundel Calendar 26-27 Revised FAQs

When is the first day of school in Regional School Unit 21 - Kennebunk, Kennebunkport, and Arundel for 2026-2027?
The first day of school for students in Grades 1-9 is August 31, 2026. Students in Grades 10-12 begin on September 1, 2026, and Pre-K and Kindergarten students begin on September 2, 2026.
When is Spring Break in Regional School Unit 21 - Kennebunk, Kennebunkport, and Arundel for 2026-2027?
Spring Break is scheduled from April 19-23, 2027. Schools will be closed during this vacation period.
When is Christmas Break in Regional School Unit 21 - Kennebunk, Kennebunkport, and Arundel for 2026-2027?
Christmas Break begins on December 23, 2026, and continues through January 1, 2027. Students return to school on January 4, 2027.
When is Winter Break in Regional School Unit 21 - Kennebunk, Kennebunkport, and Arundel for 2026-2027?
Winter Break is scheduled from February 15-19, 2027. There will be no school for students during this period.
When is Thanksgiving Break in Regional School Unit 21 - Kennebunk, Kennebunkport, and Arundel for 2026-2027?
Thanksgiving Break will take place on November 26-27, 2026. Schools will be closed for the holiday vacation.
When is the last day of school in Regional School Unit 21 - Kennebunk, Kennebunkport, and Arundel for 2026-2027?
The anticipated last student day is June 14, 2027, which will be a half day for students. The date may be adjusted if additional snow days are used.
When is Labor Day in Regional School Unit 21 - Kennebunk, Kennebunkport, and Arundel for 2026-2027?
Labor Day will be observed on September 7, 2026. There will be no school on this day.
When is Indigenous Peoples' Day in Regional School Unit 21 - Kennebunk, Kennebunkport, and Arundel for 2026-2027?
Indigenous Peoples' Day will be observed on October 12, 2026, and schools will be closed.
When is Martin Luther King Jr. Day in Regional School Unit 21 - Kennebunk, Kennebunkport, and Arundel for 2026-2027?
Martin Luther King Jr. Day will be observed on January 18, 2027. There will be no school.
When is Memorial Day in Regional School Unit 21 - Kennebunk, Kennebunkport, and Arundel for 2026-2027?
Memorial Day will be observed on May 31, 2027. Schools will be closed for the holiday.
When is Juneteenth observed in Regional School Unit 21 - Kennebunk, Kennebunkport, and Arundel for 2026-2027?
Juneteenth will be observed on June 18, 2027. There will be no school on this day.
When are Parent-Teacher Conferences in Regional School Unit 21 - Kennebunk, Kennebunkport, and Arundel for 2026-2027?
Parent-Teacher Conference days for teachers only are scheduled for November 25, 2026, and April 16, 2027.
When are Professional Development Days in Regional School Unit 21 - Kennebunk, Kennebunkport, and Arundel for 2026-2027?
Professional Development Days are scheduled for August 26-28, 2026, October 9, 2026, and March 12, 2027.
When is high school graduation in Regional School Unit 21 - Kennebunk, Kennebunkport, and Arundel for 2026-2027?
The anticipated Kennebunk High School graduation is scheduled for June 13, 2027.

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Regional School Unit 21 - Kennebunk, Kennebunkport, and Arundel calendar FAQs

When is the first day of school in Regional School Unit 21 - Kennebunk, Kennebunkport, and Arundel for 2026-2027?
The first day of school for students in Grades 1-9 is August 31, 2026. Students in Grades 10-12 begin on September 1, 2026, and Pre-K and Kindergarten students begin on September 2, 2026.
When is Spring Break in Regional School Unit 21 - Kennebunk, Kennebunkport, and Arundel for 2026-2027?
Spring Break is scheduled from April 19-23, 2027. Schools will be closed during this vacation period.
When is Christmas Break in Regional School Unit 21 - Kennebunk, Kennebunkport, and Arundel for 2026-2027?
Christmas Break begins on December 23, 2026, and continues through January 1, 2027. Students return to school on January 4, 2027.
When is Winter Break in Regional School Unit 21 - Kennebunk, Kennebunkport, and Arundel for 2026-2027?
Winter Break is scheduled from February 15-19, 2027. There will be no school for students during this period.
When is Thanksgiving Break in Regional School Unit 21 - Kennebunk, Kennebunkport, and Arundel for 2026-2027?
Thanksgiving Break will take place on November 26-27, 2026. Schools will be closed for the holiday vacation.
When is the last day of school in Regional School Unit 21 - Kennebunk, Kennebunkport, and Arundel for 2026-2027?
The anticipated last student day is June 14, 2027, which will be a half day for students. The date may be adjusted if additional snow days are used.
When is Labor Day in Regional School Unit 21 - Kennebunk, Kennebunkport, and Arundel for 2026-2027?
Labor Day will be observed on September 7, 2026. There will be no school on this day.
When is Indigenous Peoples' Day in Regional School Unit 21 - Kennebunk, Kennebunkport, and Arundel for 2026-2027?
Indigenous Peoples' Day will be observed on October 12, 2026, and schools will be closed.
When is Martin Luther King Jr. Day in Regional School Unit 21 - Kennebunk, Kennebunkport, and Arundel for 2026-2027?
Martin Luther King Jr. Day will be observed on January 18, 2027. There will be no school.
When is Memorial Day in Regional School Unit 21 - Kennebunk, Kennebunkport, and Arundel for 2026-2027?
Memorial Day will be observed on May 31, 2027. Schools will be closed for the holiday.
When is Juneteenth observed in Regional School Unit 21 - Kennebunk, Kennebunkport, and Arundel for 2026-2027?
Juneteenth will be observed on June 18, 2027. There will be no school on this day.
When are Parent-Teacher Conferences in Regional School Unit 21 - Kennebunk, Kennebunkport, and Arundel for 2026-2027?
Parent-Teacher Conference days for teachers only are scheduled for November 25, 2026, and April 16, 2027.
When are Professional Development Days in Regional School Unit 21 - Kennebunk, Kennebunkport, and Arundel for 2026-2027?
Professional Development Days are scheduled for August 26-28, 2026, October 9, 2026, and March 12, 2027.
When is high school graduation in Regional School Unit 21 - Kennebunk, Kennebunkport, and Arundel for 2026-2027?
The anticipated Kennebunk High School graduation is scheduled for June 13, 2027.

Dates can change after publication. Read our calendar disclaimer.