📆 September 2025 Calendar: View the full monthly calendar with US federal holidays and observances. Free to use and print — no sign-up needed.
| Wk | Sun | Mon | Tue | Wed | Thu | Fri | Sat |
|---|---|---|---|---|---|---|---|
| 36 | 1 Labor Day | 2 | 3 | 4 | 5 | 6 | |
| 37 | 7 | 8 | 9 | 10 | 11 | 12 | 13 |
| 38 | 14 | 15 | 16 | 17 | 18 | 19 | 20 |
| 39 | 21 | 22 | 23 | 24 | 25 | 26 | 27 |
| 40 | 28 | 29 | 30 |
About the September 2025 calendar
September contains Labor Day (1st Monday) — the unofficial end of US summer — plus the autumn equinox (~September 22-23). Hispanic Heritage Month begins September 15. The month etymologically means "seventh month" because it was the seventh month in the old Roman calendar.
Benefits
- ·Shows every day of September 2025 on a clean printable grid
- ·September federal holidays and observances marked automatically
- ·Highlights the current day with a visual indicator
- ·Mobile-readable and print-optimized (US Letter, landscape)
- ·Pairs with countdowns to September holidays
How it works
From Latin septem (seven). September was the seventh month in the original ten-month Roman calendar, before January and February were added in ~700 BCE — but the name stuck even after September became the ninth month. In 2025, September has 30 days, the standard length for the four "thirty-day" months (Apr, Jun, Sep, Nov).
Labor Day (1st Monday, federal), Patriot Day (Sep 11), Hispanic Heritage Month (Sep 15 - Oct 15), Autumn Equinox (~Sep 22-23).
Who uses the September 2025 calendar
September planners — students tracking school calendars, project managers setting September milestones, event coordinators, teachers, and remote workers planning around September 2025 federal observances.
September 2025
View the September 2025 calendar with US holidays. See all dates, weekdays, and important holidays for September 2025. Printable and free.
Related
Frequently asked questions
How many days are in September 2025?
September 2025 has 30 days. Like every September, the count is fixed regardless of year.
What day of the week does September 2025 start on?
September 1, 2025 falls on a Monday. The full weekday layout for the month is shown in the calendar grid above. The starting weekday shifts each year because 365 (or 366 in leap years) is not divisible by 7.
Are US federal holidays shown in the September 2025 calendar?
Yes. All federal holidays falling in September 2025 are highlighted in the grid above. Some states observe additional holidays (Confederate Memorial Day, Cesar Chavez Day, Patriots' Day) that are not shown — check your specific state or workplace calendar for those.
Can I print the September 2025 calendar?
Yes. Use your browser's print function (Ctrl+P / Cmd+P). The print stylesheet hides navigation and SEO elements, leaving a clean monthly grid suitable for a wall calendar or daily planner. The result fits one US Letter page in landscape orientation.