Classic monthly
One month per page with holidays, moon phases and notes.
Portrait
September 2025 Calendar
September 2025 calendar templates
4 styles in 4 colors (sage, mist blue, apricot and ink). Click a template to preview it above, pick a color, then download a free PDF or PNG.
Holidays & observances in September 2025
- Sun 7 SepFather's DayObservance
Moon phases
- Full moon Mon 8 Sep
- Last quarter Mon 15 Sep
- New moon Mon 22 Sep
- First quarter Tue 30 Sep
About September 2025
- Days30
- Starts onMonday
- Ends onTuesday
- ISO weeks36–40
- Weekdays (Mon–Fri)22
- Working days22
This printable September 2025 calendar has room for your own plans, shows moon phases and includes a notes area. Use the options to start the week on Monday or Sunday, add ISO week numbers, or switch to the planner template with a to-do column.
Calendar guides
Learn more about holidays, week numbers, moon phases and printing.
Calendar basics
Moon phases: how they work and when the full moons are
Why the Moon has phases, how long a lunar cycle lasts, traditional full moon names, and a list of full moon dates for the coming year.
Read guide · 2 min → HolidaysAustralian public holidays explained
The national public holidays in Australia, substitute days when a holiday falls on a weekend, and the main differences between states and territories — with a table for the coming year.
Read guide · 2 min → Ideas12 practical ways to use a printable calendar
Ideas for getting more from a printable calendar: family planning, meal plans, habit tracking, chores, budgets, school terms, travel countdowns and more.
Read guide · 2 min →