St. Mary's County Public Schools Calendar 2027-2028
Complete holiday schedule and key dates for St. Mary's County Public Schools for the 2027-2028 academic year.
Key Dates
| Event | Date(s) | Status |
|---|---|---|
| First Day of School | August 25, 2027 (Wed) | School Opens |
| Labor Day | September 6, 2027 (Mon) | No School |
| Student Holiday | September 24, 2027 (Fri) | No School |
| Student Holiday | October 11, 2027 (Mon) | No School |
| Veterans Day | November 11, 2027 (Thu) | No School |
| Thanksgiving Break | November 24, 2027 - November 26, 2027 | No School |
| Winter Break | December 20, 2027 - December 31, 2027 | No School |
| Martin Luther King Jr. Day | January 17, 2028 (Mon) | No School |
| Student holiday; possible make-up day | January 28, 2028 (Fri) | No School |
| Presidents' Day; possible make-up day | February 21, 2028 (Mon) | No School |
| Spring Break | April 10, 2028 - April 17, 2028 | No School |
| Memorial Day | May 29, 2028 (Mon) | No School |
| Last Day of School | June 14, 2028 (Wed) | School Closes |
Monthly Calendar MarylandSchoolCalendar.com
View the full 2027-2028 school year by month.
Calendar Notes
St. Mary's County starts the 2027-2028 year on August 25, 2027, one day earlier than its 2026-2027 start. Prekindergarten ends June 13, 2028, and K-12 ends June 14, with both days marked as two-hour early dismissals. The K-12 last day includes three inclement-weather days in the calendar structure, so families should still watch district updates if closures exceed that assumption.
The possible make-up days are January 28, February 21, and April 17. January 28 is a student holiday and possible make-up day, February 21 is Presidents' Day and possible make-up day, and April 17 is both a holiday and possible make-up day at the end of Spring Break. That makes spring travel more conditional than the break label alone suggests.
The 2027-2028 break pattern shifts slightly from the prior year: Thanksgiving Break is November 24-26, Winter Break is December 20-31, and Spring Break is April 10-17. Two-hour early dismissals are listed on September 15, October 27, November 17, December 15, January 19, February 16, March 8, March 29, May 24, June 13, and June 14. April 25 is kept out of the public closure list as a subject-to-change election-day note rather than a confirmed closure.
- First day: August 25, 2027
- K-12 last day: June 14, 2028
Frequently Asked Questions
Students start on Wednesday, August 25, 2027.
Prekindergarten ends June 13, 2028. K-12 ends June 14, 2028.
Yes. January 28, February 21, and April 17, 2028 are possible make-up days.
The first day of school for St. Mary's County Public Schools students is Wednesday, August 25, 2027. 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 20, 2027 through December 31, 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 3, 2028.
St. Mary's County Public Schools Thanksgiving Break is November 24, 2027 through November 26, 2027, 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 April 10, 2028 through April 17, 2028 - 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 2027-2028 school year: Two-hour early dismissal on September 15, 2027; Two-hour early dismissal on October 27, 2027; Two-hour early dismissal on November 17, 2027; Two-hour early dismissal on December 15, 2027; Two-hour early dismissal on January 19, 2028. 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 25, 2027) and last day (June 14, 2028), St. Mary's County Public Schools students have approximately 27 weekdays off for holidays, breaks, and teacher workdays. That leaves roughly 184 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 3, 2028 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 2027-2028 System Operational 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.