Complete school year calendar for Syosset CSD — one of Long Island's most academically acclaimed school districts, known for exceptional STEM programs and national rankings. Includes all holidays, breaks, half days, and important dates from September 2026 through June 2027.
| Event | Date(s) | Status |
|---|---|---|
| First Day of School | September 1, 2026 (Tue) | 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 25–27, 2026 (Wed–Fri) | No School |
| Winter Recess | Dec 24, 2026 – Jan 1, 2027 | No School |
| Rev. Dr. Martin Luther King Jr. Day | January 18, 2027 (Mon) | No School |
| Presidents' Week | February 15–19, 2027 (Mon–Fri) | No School |
| Eid al-Fitr | March 9, 2027 (Tue) | No School |
| Easter Break | March 25–26, 2027 (Thu–Fri) | No School |
| Spring Recess (Passover) | April 22–30, 2027 (Thu–Fri) | No School |
| Eid al-Adha | May 17, 2027 (Mon) | 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 Syosset Central School District 2026-2027 school year runs from September 1, 2026 to June 25, 2027. Consistently ranked among the top 3 school districts in New York State, Syosset serves approximately 6,500 students in one of Long Island's most academically competitive communities, alongside Jericho and Manhasset.
The 2026-2027 calendar features separate Easter (March 25–26) and Passover/Spring (April 22–30) recesses, closures for Eid al-Fitr (March 9) and Eid al-Adha (May 17), and Juneteenth observed on June 18. Rosh Hashanah, Diwali, and Lunar New Year all fall on weekends this year. The district has 179 instructional days and 4 conference days.
Sep 1, 2026.
Jun 25, 2027.
Dec 24 – Jan 2. Students return the next school day.
Mar 30 – Apr 3, 2027.
Feb 16-20, 2027.
181 student days. Approved by the Board in 2026.
Syosset is nationally recognized for its Science Olympiad program and consistently high AP exam participation rates.
Yes. Lunar New Year is observed as a school holiday, reflecting Syosset's significant East Asian community.
Data Source: This calendar is based on projected dates derived from historical Syosset Central School District scheduling patterns.
Disclaimer: This website is not affiliated with, endorsed by, or connected to Syosset Central School District or the New York State Education Department (NYSED). For the most current and official calendar, please visit www.syossetschools.org.
Dates are subject to change. Religious holiday dates are approximate and based on projected lunar calendar calculations.
Last updated: March 13, 2026