Complete school year calendar for Mamaroneck UFSD — a top-ranked Westchester district covering Mamaroneck and Larchmont. Includes all holidays, breaks, half days, and important dates from September 2026 through June 2027.
| Event | Date(s) | Status |
|---|---|---|
| Supt. Conference Day | September 1, 2026 (Tue) | Supt. Conf. Day |
| First Day of School | September 2, 2026 (Wed) | School Opens |
| Labor Day | September 7, 2026 (Mon) | No School |
| Yom Kippur | September 21, 2026 (Mon) | No School |
| Columbus Day | October 12, 2026 (Mon) | No School |
| Election Day | November 3, 2026 (Tue) | Supt. Conf. Day |
| Veterans Day | November 11, 2026 (Wed) | No School |
| Thanksgiving Recess | November 26–27, 2026 (Thu–Fri) | No School |
| Holiday Recess | Dec 23, 2026 – Jan 1, 2027 | No School |
| Rev. Dr. Martin Luther King Jr. Day | January 18, 2027 (Mon) | No School |
| Winter Recess | February 15–19, 2027 (Mon–Fri) | No School |
| Eid al-Fitr | March 10, 2027 (Wed) | Supt. Conf. Day |
| Spring Recess | March 22–26, 2027 (Mon–Fri) | No School |
| Holiday Recess (Passover) | April 22–23, 2027 (Thu–Fri) | No School |
| Memorial Day | May 31, 2027 (Mon) | No School |
| Juneteenth (Observed) | June 18, 2027 (Fri) | No School |
| Last Day of School | June 25, 2027 (Fri) | School Closes |
Complete month-by-month calendar from September 2026 to June 2027. Every day is color-coded so you can see school days, holidays, and breaks at a glance.
The Mamaroneck Union Free School District 2026-2027 school year runs from September 2, 2026 to June 25, 2027. This calendar was adopted by the Board of Education on January 13, 2026. Mamaroneck serves about 5,000 students and is consistently ranked among the top 10 districts in Westchester, neighboring Scarsdale and Rye.
180 student days with 3 conference days. Eid al-Fitr (March 10) is a conference day. Spring Recess (March 22-26) and Passover (April 22-23) are separate recesses. Holiday Recess starts Dec 23.
Sep 2, 2026.
Jun 25, 2027.
Dec 24 – Jan 2. Students return the next school day.
Mar 29 – Apr 2, 2027.
Feb 15-19, 2027.
181 student days. Approved January 13, 2026.
Yes. Mamaroneck High School offers the International Baccalaureate (IB) Diploma Programme, one of the few public schools in Westchester to do so.
The spring recess beginning March 29 encompasses the Eid al-Fitr holiday in 2027.
Data Source: This calendar is based on projected dates derived from historical Mamaroneck Union Free School District scheduling patterns.
Disclaimer: This website is not affiliated with, endorsed by, or connected to Mamaroneck Union Free School District or the New York State Education Department (NYSED). For the most current and official calendar, please visit www.mamkschools.org.
Dates are subject to change. Religious holiday dates are approximate and based on projected lunar calendar calculations.
Last updated: March 13, 2026