For the 2026–2027 school year, the district serves 2,400 students across 6 schools in Maine. The school year starts August 31, 2026, with 180 instructional days planned. All dates listed below are sourced from the district's official publications. Verify with Regional School Unit 21 - Kennebunk, Kennebunkport, and Arundel before scheduling around them.
Visual Calendar
Official Calendar Images
Official calendar scans for Regional School Unit 21 - Kennebunk, Kennebunkport, and Arundel. Click any page to open the full-size image.
School Calendar
Interactive Calendar
Regional School Unit 21 - Kennebunk, Kennebunkport, and Arundel's 2026–2027 academic calendar — holidays, breaks, and key dates.
Month by Month Calendar
About the District
School Information
Details and contact information for Regional School Unit 21 - Kennebunk, Kennebunkport, and Arundel RSU21.
Sources and Checks
Where these dates come from
How the 2026–2027 Regional School Unit 21 - Kennebunk, Kennebunkport, and Arundel calendar on this page was compiled and what to re-check before you rely on it.
- ✓District publication. Dates are taken from the calendar Regional School Unit 21 - Kennebunk, Kennebunkport, and Arundel published for 2026–2027, shown as images on this page.
- ✓Official website. Cross-checked against rsu21.net.
- ✓Board-approved version is used where the district marks one.
- ✓First and last day match the published calendar.
- ✓Breaks and holidays are listed with their full date ranges.
- ✓Teacher / no-school days are included where the district lists them.
- ✓Changes happen. Districts amend calendars mid-year — confirm with Regional School Unit 21 - Kennebunk, Kennebunkport, and Arundel before booking around a date.
Common Questions
Frequently Asked Questions
Regional School Unit 21 - Kennebunk, Kennebunkport, and Arundel Calendar 2026–2027 — important dates and answers.
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.
Spring Break is scheduled from April 19-23, 2027. Schools will be closed during this vacation period.
Christmas Break begins on December 23, 2026, and continues through January 1, 2027. Students return to school on January 4, 2027.
Winter Break is scheduled from February 15-19, 2027. There will be no school for students during this period.
Thanksgiving Break will take place on November 26-27, 2026. Schools will be closed for the holiday vacation.
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.
Labor Day will be observed on September 7, 2026. There will be no school on this day.
Indigenous Peoples' Day will be observed on October 12, 2026, and schools will be closed.
Martin Luther King Jr. Day will be observed on January 18, 2027. There will be no school.
Memorial Day will be observed on May 31, 2027. Schools will be closed for the holiday.
Juneteenth will be observed on June 18, 2027. There will be no school on this day.
Parent-Teacher Conference days for teachers only are scheduled for November 25, 2026, and April 16, 2027.
Professional Development Days are scheduled for August 26-28, 2026, October 9, 2026, and March 12, 2027.
The anticipated Kennebunk High School graduation is scheduled for June 13, 2027.
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Recently Updated Calendars
Other Maine school district calendars — recently added or updated.