Complete school year calendar for Islip UFSD, Suffolk County. Includes all holidays, breaks, half days, and important dates from September 2025 through June 2026.
| Event | Date(s) | Status |
|---|---|---|
| First Day of School | September 2, 2025 (Tue) | School Opens |
| Rosh Hashanah | Sep 23–24, 2025 (Tue–Wed) | No School |
| Yom Kippur | Oct 2, 2025 (Thu) | No School |
| Columbus Day | Oct 13, 2025 (Mon) | No School |
| Veterans Day | Nov 11, 2025 (Tue) | No School |
| Thanksgiving Recess | Nov 26–28, 2025 (Wed–Fri) | No School |
| Winter Recess | Dec 24, 2025 – Jan 2, 2026 | No School |
| MLK Day | Jan 19, 2026 (Mon) | No School |
| Mid-Winter Recess | Feb 16–20, 2026 (Mon–Fri) | No School |
| Spring Recess | Apr 2–10, 2026 (Thu–Fri) | No School |
| Memorial Day | May 25, 2026 (Mon) | No School |
| Juneteenth | Jun 19, 2026 (Fri) | No School |
| Last Day / Graduation | June 26, 2026 (Fri) | School Closes |
Complete month-by-month calendar from September 2025 to June 2026. Every day is color-coded so you can see school days, holidays, and breaks at a glance.
The Islip Public Schools 2025-2026 school year serves roughly 2,800 students on the historic South Shore of Suffolk County. As one of Long Island's oldest, most quintessential coastal hamlets, the district enjoys immense, multi-generational community support.
The Islip school calendar reflects a fiercely tight-knit community, heavily emphasizing district-wide traditions, homecoming events, and athletic milestones. Because the district borders the Great South Bay, the schedule is highly vulnerable to coastal flooding, hurricane season remnants, and winter nor'easters. Consequently, families highly value the calendar's explicitly detailed snow-day padding to ensure spring graduation dates are not compromised.
For easy reference, use the button at the top of this page to download a free, color-coded printable Islip school calendar for your fridge or desk.
Data Source: Official Islip Union Free School District calendar publication.
Disclaimer: This website is not affiliated with, endorsed by, or connected to Islip Union Free School District or the New York State Education Department (NYSED). For the most current and official calendar, please visit www.islipufsd.org.
Official calendars can still change. Always confirm updates with the district before making plans.
Last updated: March 17, 2026