| September | |
| 1 | Season of Creation begins |
| 1-7 | National Child Protection Week |
| 2 | 1991: Council for Aboriginal Reconciliation Act passed by Parliament |
| 7 | National Threatened Species Day |
| 10 | World Suicide Prevention Day |
| 12 | RUOK Day |
| 13 | 2007: Adoption by the UN of Declaration on the Rights of Indigenous Peoples |
| 17 | UN Climate Change Summit |
| 17-19 | NCCA Safer Churches Conference 2019 |
| 21 | International Day of Peace |
| 26 | International Day for the Total Elimination of Nuclear Weapons |
| 29 | Social Justice Sunday |
| 29 | Beginning of Rosh Hashanah (Jewish New Year) |
| October | |
| 1 | International Day of Older Persons |
| 2 | International Day of Non Violence |
