| September | |
| Season of Creation | |
| 1 | World Day of Prayer for the Care of Creation |
| 2 | 1991: Council for Aboriginal Reconciliation Act passed by Parliament |
| 3-9 | National Child Protection Week |
| 6 | Indigenous Literacy Day |
| 6 | Krishna Janmashtami | Hinduism |
| 7 | National Threatened Species Day |
| 10 | World Mental Health Day |
| 10 | World Homeless Day |
| 14 | R U OK? Day |
| 15 | International Day of Democracy |
| 16 | Rosh Hashanah (Jewish New Year) | Judaism |
| 16 | International Day for the Preservations of the Ozone Layer |
| 21 | International Day of Peace |
| 25 | World Day for Migrants & Refugees |
| 25 | Yom Kippur | Judaism |
| 30 | Sukkot | Judaism |
| October | |
| Mental Health Month | |
| 1 | International Day of Older Persons |