St. Mary's County Public Schools Calendar 2026-2027
Complete holiday schedule and key dates for St. Mary's County Public Schools for the 2026-2027 academic year.
Key Dates
| Event | Date(s) | Status |
|---|---|---|
| First Day of School | August 26, 2026 (Wed) | School Opens |
| Labor Day | September 7, 2026 (Mon) | No School |
| Student Holiday | September 25, 2026 (Fri) | No School |
| Student Holiday | October 12, 2026 (Mon) | No School |
| Election Day | November 3, 2026 (Tue) | No School |
| Veterans Day | November 11, 2026 (Wed) | No School |
| Thanksgiving Break | November 25, 2026 - November 27, 2026 | No School |
| Winter Break | December 21, 2026 - January 1, 2027 | No School |
| Martin Luther King Jr. Day | January 18, 2027 (Mon) | No School |
| Student holiday; possible make-up day | January 29, 2027 (Fri) | No School |
| Presidents' Day; possible make-up day | February 15, 2027 (Mon) | No School |
| Spring Break | March 22, 2027 - March 29, 2027 | No School |
| Memorial Day | May 31, 2027 (Mon) | No School |
| Last Day of School | June 16, 2027 (Wed) | School Closes |
Monthly Calendar MarylandSchoolCalendar.com
View the full 2026-2027 school year by month.
Calendar Notes
St. Mary's County starts students on August 26, 2026, which is later than Charles County's August 24 start and one day later than Calvert's August 25 start. The last day for prekindergarten is June 15, 2027, and the last day for K-12 is June 16; both are two-hour early dismissal days. Families with PreK and older students again have a one-day difference at the end of the year.
The possible make-up days are January 29, February 15, and March 29. January 29 is listed as a student holiday and possible make-up day, February 15 is Presidents' Day and possible make-up day, and March 29 falls at the end of Spring Break. That means weather could affect not only June planning but also a holiday Monday and the spring break return.
This year's break pattern is November 25-27 for Thanksgiving, December 21-January 1 for Winter Break, and March 22-29 for Spring Break. Two-hour early dismissals are listed on September 16, October 28, November 18, December 16, January 20, February 17, March 10, April 7, May 26, June 15, and June 16. Compared with Charles and Calvert, St. Mary's has a later K-12 last day but a clearly named set of possible make-up dates.
- First day for students: August 26, 2026
- Last day for K-12 students: June 16, 2027
Frequently Asked Questions
Students start on Wednesday, August 26, 2026.
The last day for prekindergarten students is June 15, 2027. The last day for K-12 students is Wednesday, June 16, 2027.
Yes. January 29, February 15, and March 29, 2027 are listed as possible make-up days.
The first day of school for St. Mary's County Public Schools students is Wednesday, August 26, 2026. Teachers typically report a few days earlier for staff development. Parents should check the district website for any orientation sessions, supply list deadlines, or staggered-start schedules that may apply to younger grades.
St. Mary's County Public Schools Winter Break runs from December 21, 2026 through January 1, 2027 — that's 10 school days off. Including the adjacent weekends, families have up to 16 consecutive days for holiday travel and family time. Students return to class on Monday, January 4, 2027.
St. Mary's County Public Schools Thanksgiving Break is November 25, 2026 through November 27, 2026, giving students 3 weekdays off. With the surrounding weekends, families get 5 consecutive days away from school — enough time for out-of-state travel or extended family gatherings.
St. Mary's County Public Schools Spring Break is March 22, 2027 through March 29, 2027 - 6 school days off. Including the weekends on either side, families have up to 10 consecutive days for vacation planning. Note that neighboring school systems may have different Spring Break weeks, so coordinate if you have children in multiple systems.
Yes, St. Mary's County Public Schools lists 11 early release or half-days for the 2026-2027 school year: Two-hour early dismissal on September 16, 2026; Two-hour early dismissal on October 28, 2026; Two-hour early dismissal on November 18, 2026; Two-hour early dismissal on December 16, 2026; Two-hour early dismissal on January 20, 2027. Dismissal times on these days typically differ between elementary and secondary campuses, so check with your child's school for the exact schedule. Arrange childcare or after-school plans accordingly.
Between the first day (August 26, 2026) and last day (June 16, 2027), St. Mary's County Public Schools students have approximately 28 weekdays off for holidays, breaks, and teacher workdays. That leaves roughly 183 potential instructional days across the school year. Maryland school systems generally plan around state instructional-day requirements and local board-approved calendars.
St. Mary's County Public Schools students return to class on Monday, January 4, 2027 after Winter Break. The second semester typically begins on this date. Make sure your children's school supplies are restocked and any required forms are submitted before the return date. Check with your campus for any orientation or welcome-back activities.
Related Links
About This Calendar
Data Source: Official St. Mary's County Public Schools 2026-2027 School System Calendar PDF.
Disclaimer: This website is not affiliated with St. Mary's County Public Schools, the Maryland State Department of Education, or any official school system body. While we strive for accuracy, always verify important dates with the official school system website.