September is a month chock full of noteworthy and exciting occasions that occur all around the world. There is something to celebrate and honour for everyone, from local cultural festivals to international awareness campaigns.
The following are some of the most important dates and occasions to keep an eye out for in September:
| No. | Date | Importance |
| 1 | Sep-01 | National Wattle Day |
| 2 | Sep-02 | Victory over Japan Day |
| 3 | Sep-03 | Skyscraper Day |
| 4 | Sep-04 | National Wildlife Day |
| 5 | Sep-05 | International Day of Charity |
| 6 | Sep-06 | Labor Day |
| 7 | Sep-07 | Brazilian Independence Day |
| 8 | Sep-08 | International Literacy Day |
| 9 | Sep-09 | California Admission Day |
| 10 | Sep-10 | World Suicide Prevention Day |
| 11 | Sep-11 | Patriot Day and National Day of Service and Remembrance |
| 12 | Sep-12 | National Grandparents Day |
| 13 | Sep-13 | National Kids Take Over The Kitchen Day |
| 14 | Sep-14 | National Cream Filled Donut Day |
| 15 | Sep-15 | International Day of Democracy |
| 16 | Sep-16 | Mexican Independence Day |
| 17 | Sep-17 | Constitution Day and Citizenship Day |
| 18 | Sep-18 | National Cheeseburger Day |
| 19 | Sep-19 | Talk Like a Pirate Day |
| 20 | Sep-20 | German World Children’s Day |
| 21 | Sep-21 | International Day of Peace |
| 22 | Sep-22 | Autumnal Equinox |
| 23 | Sep-23 | Saudi Arabian National Day |
| 24 | Sep-24 | National Punctuation Day |
| 25 | Sep-25 | National Comic Book Day |
| 26 | Sep-26 | European Day of Languages |
| 27 | Sep-27 | World Tourism Day |
| 28 | Sep-28 | National Good Neighbor Day |
| 29 | Sep-29 | National Coffee Day |
| 30 | Sep-30 | International Podcast Day |
